Choose 94728 for oscillometry measurements made during quiet breathing. Choose 94010 when the service is spirometry measuring airflow and volume during breathing maneuvers.
On this page
CMS RVU26D · Effective 2026-10-01
94728 in Redding
Office / nonfacility
$51.68
Base rate per service
Facility setting
Not available in this setting
Base rate per service
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
Pulmonary function testing
About 94728: Airway resistance oscillometry test
Measures respiratory resistance and related mechanics during quiet breathing with oscillometry, often as part of evaluating obstructive airway symptoms or disease.
Oscillometry assesses respiratory-system mechanics by applying small pressure oscillations while the patient breathes quietly through a mouthpiece. The test measures airway resistance and related responses without requiring repeated forceful expiratory maneuvers. Pulmonary function laboratories commonly perform it under the direction of pulmonologists, allergists, or other clinicians evaluating conditions such as asthma or obstructive lung disease; it can also provide measurements when a patient has difficulty completing effort-dependent testing.
Report 94728 for the oscillometry test itself, not for spirometry, lung-volume measurement, or gas-transfer testing. Documentation should identify the test performed and include the recorded results and the interpreting clinician’s findings. CMS recognizes a professional component, reported with modifier 26 for interpretation, and a technical component, reported with modifier TC for equipment and staff. Reporting the code without either modifier represents the global service, including both components.
CMS billing rules for 94728
- Professional and technical components
- Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.
Where the value comes from
- Work RVU0.25 · 17%
- Practice expense (office) RVU1.17 · 81%
- Malpractice RVU0.02 · 1%
2.8K
Medicare services in 2024 · #2232 by national volume
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
94728 compared with similar codes
Office rates for Redding, from the same CMS release.
94726 measures lung volumes by plethysmography; 94728 measures respiratory mechanics using oscillometry. They describe different tests.
94727 measures lung volumes by gas dilution or washout. It is not the code for oscillometry-based airway resistance testing.
The same code, a different location
How does Redding compare?
In Bakersfield, the office rate for 94728 is $51.75—$0.07 higher than the $51.68 rate in Redding. Both use the same code, release and participation basis.
94728 across payment areas
Same release and payment basis · bars start at $0
Redding · This locality
$51.68
$51.75
$0.07 higher than Redding
$51.68
The same base rate than Redding
$51.68
The same base rate than Redding
$51.68
The same base rate than Redding
$51.68
The same base rate than Redding
$3.69 higher than Redding
Other payment areas listed in California appear first, followed by selected cross-country examples. The chart compares amounts, not distance.
Across 109 of 109 CMS payment localities with a supported office rate, 94728 ranges from $42.26 in Arkansas to $65.98 in San Jose-Sunnyvale-Santa Clara (San Benito Cnty). This is a geographic range, not an average.
The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.
Compare all 108 other payment areas
Madera
California · 94728
Office
$51.68
Facility
Unavailable
The same base rate than Redding for the office setting.
Merced
California · 94728
Office
$51.68
Facility
Unavailable
The same base rate than Redding for the office setting.
Modesto
California · 94728
Office
$51.68
Facility
Unavailable
The same base rate than Redding for the office setting.
Napa
California · 94728
Office
$60.72
Facility
Unavailable
$9.04 higher than Redding for the office setting.
Oxnard-Thousand Oaks-Ventura
California · 94728
Office
$55.19
Facility
Unavailable
$3.51 higher than Redding for the office setting.
Rest Of California
California · 94728
Office
$51.68
Facility
Unavailable
The same base rate than Redding for the office setting.
Riverside-San Bernardino-Ontario
California · 94728
Office
$51.90
Facility
Unavailable
$0.22 higher than Redding for the office setting.
Sacramento-Roseville-Folsom
California · 94728
Office
$54.46
Facility
Unavailable
$2.78 higher than Redding for the office setting.
Salinas
California · 94728
Office
$54.26
Facility
Unavailable
$2.58 higher than Redding for the office setting.
San Diego-Chula Vista-Carlsbad
California · 94728
Office
$55.70
Facility
Unavailable
$4.02 higher than Redding for the office setting.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 94728
Office
$64.55
Facility
Unavailable
$12.87 higher than Redding for the office setting.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 94728
Office
$64.53
Facility
Unavailable
$12.85 higher than Redding for the office setting.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 94728
Office
$65.98
Facility
Unavailable
$14.30 higher than Redding for the office setting.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 94728
Office
$65.89
Facility
Unavailable
$14.21 higher than Redding for the office setting.
San Luis Obispo-Paso Robles
California · 94728
Office
$53.36
Facility
Unavailable
$1.68 higher than Redding for the office setting.
Santa Cruz-Watsonville
California · 94728
Office
$56.36
Facility
Unavailable
$4.68 higher than Redding for the office setting.
Santa Maria-Santa Barbara
California · 94728
Office
$54.51
Facility
Unavailable
$2.83 higher than Redding for the office setting.
Santa Rosa-Petaluma
California · 94728
Office
$56.95
Facility
Unavailable
$5.27 higher than Redding for the office setting.
Stockton
California · 94728
Office
$51.68
Facility
Unavailable
The same base rate than Redding for the office setting.
Vallejo
California · 94728
Office
$60.69
Facility
Unavailable
$9.01 higher than Redding for the office setting.
Visalia
California · 94728
Office
$51.68
Facility
Unavailable
The same base rate than Redding for the office setting.
Yuba City
California · 94728
Office
$51.68
Facility
Unavailable
The same base rate than Redding for the office setting.
Dc + Md/Va Suburbs
District of Columbia · 94728
Office
$55.58
Facility
Unavailable
$3.90 higher than Redding for the office setting.
Miami
Florida · 94728
Office
$50.72
Facility
Unavailable
$0.96 lower than Redding for the office setting.
Chicago
Illinois · 94728
Office
$49.22
Facility
Unavailable
$2.46 lower than Redding for the office setting.
Manhattan
New York · 94728
Office
$55.35
Facility
Unavailable
$3.67 higher than Redding for the office setting.
Alaska*
Alaska · 94728
Office
$54.51
Facility
Unavailable
$2.83 higher than Redding for the office setting.
Alabama
Alabama · 94728
Office
$42.92
Facility
Unavailable
$8.76 lower than Redding for the office setting.
Arkansas
Arkansas · 94728
Office
$42.26
Facility
Unavailable
$9.42 lower than Redding for the office setting.
Arizona
Arizona · 94728
Office
$46.79
Facility
Unavailable
$4.89 lower than Redding for the office setting.
Colorado
Colorado · 94728
Office
$50.55
Facility
Unavailable
$1.13 lower than Redding for the office setting.
Connecticut
Connecticut · 94728
Office
$51.41
Facility
Unavailable
$0.27 lower than Redding for the office setting.
Delaware
Delaware · 94728
Office
$47.60
Facility
Unavailable
$4.08 lower than Redding for the office setting.
Fort Lauderdale
Florida · 94728
Office
$49.15
Facility
Unavailable
$2.53 lower than Redding for the office setting.
Rest Of Florida
Florida · 94728
Office
$46.71
Facility
Unavailable
$4.97 lower than Redding for the office setting.
Atlanta
Georgia · 94728
Office
$48.88
Facility
Unavailable
$2.80 lower than Redding for the office setting.
Rest Of Georgia
Georgia · 94728
Office
$44.01
Facility
Unavailable
$7.67 lower than Redding for the office setting.
Hawaii, Guam
Hawaii · 94728
Office
$53.17
Facility
Unavailable
$1.49 higher than Redding for the office setting.
Iowa
Iowa · 94728
Office
$44.37
Facility
Unavailable
$7.31 lower than Redding for the office setting.
Idaho
Idaho · 94728
Office
$44.62
Facility
Unavailable
$7.06 lower than Redding for the office setting.
East St. Louis
Illinois · 94728
Office
$45.65
Facility
Unavailable
$6.03 lower than Redding for the office setting.
Rest Of Illinois
Illinois · 94728
Office
$45.07
Facility
Unavailable
$6.61 lower than Redding for the office setting.
Suburban Chicago
Illinois · 94728
Office
$49.73
Facility
Unavailable
$1.95 lower than Redding for the office setting.
Indiana
Indiana · 94728
Office
$44.90
Facility
Unavailable
$6.78 lower than Redding for the office setting.
Kansas
Kansas · 94728
Office
$44.01
Facility
Unavailable
$7.67 lower than Redding for the office setting.
Kentucky
Kentucky · 94728
Office
$43.70
Facility
Unavailable
$7.98 lower than Redding for the office setting.
New Orleans
Louisiana · 94728
Office
$45.88
Facility
Unavailable
$5.80 lower than Redding for the office setting.
Rest Of Louisiana
Louisiana · 94728
Office
$43.58
Facility
Unavailable
$8.10 lower than Redding for the office setting.
Metropolitan Boston
Massachusetts · 94728
Office
$55.95
Facility
Unavailable
$4.27 higher than Redding for the office setting.
Rest Of Massachusetts
Massachusetts · 94728
Office
$50.17
Facility
Unavailable
$1.51 lower than Redding for the office setting.
Baltimore/Surr. Cntys
Maryland · 94728
Office
$51.24
Facility
Unavailable
$0.44 lower than Redding for the office setting.
Rest Of Maryland
Maryland · 94728
Office
$48.59
Facility
Unavailable
$3.09 lower than Redding for the office setting.
Rest Of Maine
Maine · 94728
Office
$44.72
Facility
Unavailable
$6.96 lower than Redding for the office setting.
Southern Maine
Maine · 94728
Office
$47.50
Facility
Unavailable
$4.18 lower than Redding for the office setting.
Detroit
Michigan · 94728
Office
$47.19
Facility
Unavailable
$4.49 lower than Redding for the office setting.
Rest Of Michigan
Michigan · 94728
Office
$44.78
Facility
Unavailable
$6.90 lower than Redding for the office setting.
Minnesota
Minnesota · 94728
Office
$48.76
Facility
Unavailable
$2.92 lower than Redding for the office setting.
Metropolitan Kansas City
Missouri · 94728
Office
$45.70
Facility
Unavailable
$5.98 lower than Redding for the office setting.
Metropolitan St. Louis
Missouri · 94728
Office
$46.22
Facility
Unavailable
$5.46 lower than Redding for the office setting.
Rest Of Missouri
Missouri · 94728
Office
$42.69
Facility
Unavailable
$8.99 lower than Redding for the office setting.
Mississippi
Mississippi · 94728
Office
$42.49
Facility
Unavailable
$9.19 lower than Redding for the office setting.
Montana**
Montana · 94728
Office
$48.10
Facility
Unavailable
$3.58 lower than Redding for the office setting.
North Carolina
North Carolina · 94728
Office
$45.24
Facility
Unavailable
$6.44 lower than Redding for the office setting.
North Dakota**
North Dakota · 94728
Office
$47.70
Facility
Unavailable
$3.98 lower than Redding for the office setting.
Nebraska
Nebraska · 94728
Office
$44.67
Facility
Unavailable
$7.01 lower than Redding for the office setting.
New Hampshire
New Hampshire · 94728
Office
$49.62
Facility
Unavailable
$2.06 lower than Redding for the office setting.
Northern Nj
New Jersey · 94728
Office
$54.92
Facility
Unavailable
$3.24 higher than Redding for the office setting.
Rest Of New Jersey
New Jersey · 94728
Office
$52.09
Facility
Unavailable
$0.41 higher than Redding for the office setting.
New Mexico
New Mexico · 94728
Office
$44.99
Facility
Unavailable
$6.69 lower than Redding for the office setting.
Nevada**
Nevada · 94728
Office
$48.02
Facility
Unavailable
$3.66 lower than Redding for the office setting.
Nyc Suburbs/Long Island
New York · 94728
Office
$56.59
Facility
Unavailable
$4.91 higher than Redding for the office setting.
Poughkpsie/N Nyc Suburbs
New York · 94728
Office
$52.33
Facility
Unavailable
$0.65 higher than Redding for the office setting.
Queens
New York · 94728
Office
$56.04
Facility
Unavailable
$4.36 higher than Redding for the office setting.
Rest Of New York
New York · 94728
Office
$45.94
Facility
Unavailable
$5.74 lower than Redding for the office setting.
Ohio
Ohio · 94728
Office
$44.70
Facility
Unavailable
$6.98 lower than Redding for the office setting.
Oklahoma
Oklahoma · 94728
Office
$43.77
Facility
Unavailable
$7.91 lower than Redding for the office setting.
Portland
Oregon · 94728
Office
$52.40
Facility
Unavailable
$0.72 higher than Redding for the office setting.
Rest Of Oregon
Oregon · 94728
Office
$47.74
Facility
Unavailable
$3.94 lower than Redding for the office setting.
Metropolitan Philadelphia
Pennsylvania · 94728
Office
$49.98
Facility
Unavailable
$1.70 lower than Redding for the office setting.
Rest Of Pennsylvania
Pennsylvania · 94728
Office
$44.86
Facility
Unavailable
$6.82 lower than Redding for the office setting.
Puerto Rico
Puerto Rico · 94728
Office
$48.52
Facility
Unavailable
$3.16 lower than Redding for the office setting.
Rhode Island
Rhode Island · 94728
Office
$49.47
Facility
Unavailable
$2.21 lower than Redding for the office setting.
South Carolina
South Carolina · 94728
Office
$45.03
Facility
Unavailable
$6.65 lower than Redding for the office setting.
South Dakota**
South Dakota · 94728
Office
$47.65
Facility
Unavailable
$4.03 lower than Redding for the office setting.
Tennessee
Tennessee · 94728
Office
$44.23
Facility
Unavailable
$7.45 lower than Redding for the office setting.
Austin
Texas · 94728
Office
$50.30
Facility
Unavailable
$1.38 lower than Redding for the office setting.
Beaumont
Texas · 94728
Office
$44.53
Facility
Unavailable
$7.15 lower than Redding for the office setting.
Brazoria
Texas · 94728
Office
$47.67
Facility
Unavailable
$4.01 lower than Redding for the office setting.
Dallas
Texas · 94728
Office
$47.92
Facility
Unavailable
$3.76 lower than Redding for the office setting.
Fort Worth
Texas · 94728
Office
$47.54
Facility
Unavailable
$4.14 lower than Redding for the office setting.
Galveston
Texas · 94728
Office
$47.78
Facility
Unavailable
$3.90 lower than Redding for the office setting.
Houston
Texas · 94728
Office
$48.14
Facility
Unavailable
$3.54 lower than Redding for the office setting.
Rest Of Texas
Texas · 94728
Office
$46.04
Facility
Unavailable
$5.64 lower than Redding for the office setting.
Utah
Utah · 94728
Office
$45.68
Facility
Unavailable
$6.00 lower than Redding for the office setting.
Virginia
Virginia · 94728
Office
$47.24
Facility
Unavailable
$4.44 lower than Redding for the office setting.
Virgin Islands
United States Virgin Islands · 94728
Office
$48.52
Facility
Unavailable
$3.16 lower than Redding for the office setting.
Vermont
Vermont · 94728
Office
$47.38
Facility
Unavailable
$4.30 lower than Redding for the office setting.
Rest Of Washington
Washington · 94728
Office
$50.12
Facility
Unavailable
$1.56 lower than Redding for the office setting.
Seattle (King Cnty)
Washington · 94728
Office
$57.26
Facility
Unavailable
$5.58 higher than Redding for the office setting.
Wisconsin
Wisconsin · 94728
Office
$45.99
Facility
Unavailable
$5.69 lower than Redding for the office setting.
West Virginia
West Virginia · 94728
Office
$43.27
Facility
Unavailable
$8.41 lower than Redding for the office setting.
Wyoming**
Wyoming · 94728
Office
$47.92
Facility
Unavailable
$3.76 lower than Redding for the office setting.
See how rates vary across the country
94728 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.
Explore a state
Local rates. Clear comparisons.
Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.
$42.26
$58.83
Color shows the midpoint of each state’s locality range.
View all state and territory rates as a table
| State / territory | Rate range | Localities |
|---|---|---|
| AK | $54.51 | 1 |
| AL | $42.92 | 1 |
| AR | $42.26 | 1 |
| AZ | $46.79 | 1 |
| CA | $51.68–$65.98 | 29 |
| CO | $50.55 | 1 |
| CT | $51.41 | 1 |
| DC | $55.58 | 1 |
| DE | $47.60 | 1 |
| FL | $46.71–$50.72 | 3 |
| GA | $44.01–$48.88 | 2 |
| GU | $53.17 | 1 |
| HI | $53.17 | 1 |
| IA | $44.37 | 1 |
| ID | $44.62 | 1 |
| IL | $45.07–$49.73 | 4 |
| IN | $44.90 | 1 |
| KS | $44.01 | 1 |
| KY | $43.70 | 1 |
| LA | $43.58–$45.88 | 2 |
| MA | $50.17–$55.95 | 2 |
| MD | $48.59–$55.58 | 3 |
| ME | $44.72–$47.50 | 2 |
| MI | $44.78–$47.19 | 2 |
| MN | $48.76 | 1 |
| MO | $42.69–$46.22 | 3 |
| MS | $42.49 | 1 |
| MT | $48.10 | 1 |
| NC | $45.24 | 1 |
| ND | $47.70 | 1 |
| NE | $44.67 | 1 |
| NH | $49.62 | 1 |
| NJ | $52.09–$54.92 | 2 |
| NM | $44.99 | 1 |
| NV | $48.02 | 1 |
| NY | $45.94–$56.59 | 5 |
| OH | $44.70 | 1 |
| OK | $43.77 | 1 |
| OR | $47.74–$52.40 | 2 |
| PA | $44.86–$49.98 | 2 |
| PR | $48.52 | 1 |
| RI | $49.47 | 1 |
| SC | $45.03 | 1 |
| SD | $47.65 | 1 |
| TN | $44.23 | 1 |
| TX | $44.53–$50.30 | 8 |
| UT | $45.68 | 1 |
| VA | $47.24–$55.58 | 2 |
| VI | $48.52 | 1 |
| VT | $47.38 | 1 |
| WA | $50.12–$57.26 | 2 |
| WI | $45.99 | 1 |
| WV | $43.27 | 1 |
| WY | $47.92 | 1 |
Where does this rate apply?
Redding is a Medicare payment area. Our Census mapping connects it to 32 cities and communities in California, including the examples shown here.
Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.
Use this rate
What is a percentage of Medicare worth?
Turn a percentage into dollars for 94728 in Redding. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$56.85
$51.68 × 110% = $56.85
A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.
Working with a whole code list?
Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.
How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 94728 in Redding.
PPRRVU2026_Oct_nonQPP.csv
12,436
- Code
- 94728
- Physician work
- 0.25
- Practice expense
- 1.17
- Malpractice
- 0.02
GPCI2026.csv
19
- Locality
- Redding
- Physician work
- 1.017
- Practice expense
- 1.096
- Malpractice
- 0.536
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.25 | × 1.017 | 0.2542 |
| Practice expense | 1.17 | × 1.096 | 1.2823 |
| Malpractice | 0.02 | × 0.536 | 0.0107 |
| Total RVUs | 1.5473 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Redding$51.68
Open 94728 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0.25 | 1.017 |
| Practice expense | 1.17 | 1.096 |
| Malpractice | 0.02 | 0.536 |
(0.25 × 1.017 + 1.17 × 1.096 + 0.02 × 0.536) × $33.4009 = $51.68
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
How this rate has changed
94728 · Office / nonfacility
$51.68
Effective 2026-10-01
The base rate is $5.67 higher than on 2025-10-01, moving from $46.01 to $51.68 (12.3%).
It is unchanged from the immediately preceding available release, effective 2026-07-01.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
January 1, 2026
RVU26A
$46.01changed to$51.68
- Conversion factor 32.3465 changed to 33.4009
- Work RVU 0.26 changed to 0.25
- Practice expense RVU 1.05 changed to 1.17
- Work GPCI 1.014 changed to 1.017
- Practice expense GPCI 1.093 changed to 1.096
- Malpractice GPCI 0.560 changed to 0.536
Held through RVU26B, RVU26C, RVU26D.
January 1, 2025
RVU25A
Earliest loaded release: $46.01
Held through RVU25B, RVU25C, RVU25D.
Explore release dates and calculate this code in an earlier period →
Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.
Inspect every release and its CMS source
| Effective from | Office / nonfacility | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | $51.68 | Not available in this setting | RVU26D |
| 2026-07-01 | $51.68 | Not available in this setting | RVU26C |
| 2026-04-01 | $51.68 | Not available in this setting | RVU26B |
| 2026-01-01 | $51.68 | Not available in this setting | RVU26A |
| 2025-10-01 | $46.01 | Not available in this setting | RVU25D |
| 2025-07-01 | $46.01 | Not available in this setting | RVU25C |
| 2025-04-01 | $46.01 | Not available in this setting | RVU25B |
| 2025-01-01 | $46.01 | Not available in this setting | RVU25A |
94728 billing questions
How is oscillometry different from spirometry?
Oscillometry measures respiratory mechanics during quiet breathing using applied pressure oscillations. Spirometry measures airflow and volume during breathing maneuvers, including forced expiration.
Can 94728 be reported with lung-volume testing?
Yes, when oscillometry and a distinct lung-volume test are both performed and documented. The lung-volume service is separate from the oscillometry measurement.
What do modifiers 26 and TC represent?
Modifier 26 identifies the professional interpretation, while modifier TC identifies the technical service, including equipment and staff. Without either modifier, 94728 represents the global service.
What documentation supports reporting 94728?
Document that oscillometry was performed, the results obtained, and the clinician’s interpretation. For component billing, the record should support the professional or technical service represented by the modifier.
Is airway resistance by oscillometry the same as lung-volume measurement?
No. Oscillometry evaluates respiratory-system mechanics during quiet breathing; lung-volume tests measure volumes of air in the lungs using a different testing method.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
