$14.57–$15.41
97032 describes attended electrical stimulation. Use 97033 when the current is used to deliver medication through the skin.
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CMS RVU26D · Effective 2026-10-01
97033 Iontophoresis Medicare reimbursement rates in Oregon
Reports therapist-administered iontophoresis that uses electrical current to deliver medication through the skin during a timed rehabilitation treatment. Compare 97033 office and facility rates across CMS payment localities in Oregon.
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.
What does Medicare pay for 97033 in Oregon?
Oregon has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
$18.90–$20.20
2 of 2 localities have a supported rate.
Facility setting
No supported rate
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Physical medicine modality
About 97033: Iontophoresis treatment, each 15 minutes
Reports therapist-administered iontophoresis that uses electrical current to deliver medication through the skin during a timed rehabilitation treatment.
Iontophoresis uses an electrical current to move a prescribed medication through the skin to a localized treatment area, often over an extremity with soft-tissue inflammation. Physical therapists and occupational therapists commonly provide it in outpatient rehabilitation settings; dexamethasone is one medication used for this purpose. The service is selected for medication delivery through the skin, not simply because electrical equipment is used during treatment.
Report one unit for each 15 minutes of treatment, supported by documentation of the treatment area, medication, skilled application, and time. Do not count the same treatment minutes toward another timed service. CMS treats this as a therapy service, so a professional-component modifier does not apply. When multiple therapy units are furnished on the same day, CMS reduces practice expense for the second and subsequent units.
CMS billing rules for 97033
- Professional and technical components
- Therapy service: the professional component modifier does not apply.
- Multiple procedures
- Therapy multiple procedure payment reduction: practice expense is reduced for the second and later therapy units on the same day.
Where the value comes from
- Work RVU0.26 · 46%
- Practice expense (office) RVU0.30 · 53%
- Malpractice RVU0.01 · 2%
29.4K
Medicare services in 2024 · #981 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.
97033 compared with similar codes
Office rates for Oregon, from the same CMS release.
$13.90–$14.80
97034 is for contrast-bath treatment. It does not describe medication delivery through the skin by electrical current.
$14.24–$15.17
97035 describes therapeutic ultrasound. Use 97033 for iontophoresis medication delivery, not ultrasound treatment.
Compare 97033 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
2 of 2 payment localities
Portland →
Office / nonfacility
$20.20
Facility
Unavailable
Rest Of Oregon →
Office / nonfacility
$18.90
Facility
Unavailable
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97033 billing questions
How is this different from electrical stimulation?
Iontophoresis delivers medication through the skin using current. Report 97032 when the service is attended electrical stimulation rather than transdermal medication delivery.
How many units should be reported?
Each unit represents 15 minutes of iontophoresis treatment. Document the treatment time and do not count minutes already assigned to another timed service.
What documentation supports the service?
Record the medication, treatment area, skilled application, and time spent providing iontophoresis. The record should support why medication delivery by this method was part of the rehabilitation treatment.
Should a professional-component modifier be appended?
No. CMS identifies this as a therapy service for which a professional-component modifier does not apply.
How does the therapy multiple procedure reduction affect payment?
CMS reduces practice expense for the second and later therapy units furnished on the same day. The reduction applies to practice expense, not as a reduction to the documented treatment time.
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.
12,85097026,,Infrared therapy,R,,0.06,0.13,,0.13,NA,0.01,0.20,0.20,7,XXX,0.00,0.00,0.00,5,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,85197028,,Ultraviolet therapy,A,,0.08,0.16,,0.16,NA,0.01,0.25,0.25,7,XXX,0.00,0.00,0.00,5,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,85297032,,Appl modality 1+estim ea 15,A,,0.25,0.18,,0.18,NA,0.01,0.44,0.44,7,XXX,0.00,0.00,0.00,5,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,85397033,,App mdlty 1+iontphrsis ea 15,A,,0.26,0.30,,0.30,NA,0.01,0.57,0.57,7,XXX,0.00,0.00,0.00,5,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,85497034,,App mdlty 1+cntrst bth ea 15,A,,0.21,0.20,,0.20,NA,0.01,0.42,0.42,7,XXX,0.00,0.00,0.00,5,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,85597035,,App mdlty 1+ultrasound ea 15,A,,0.21,0.21,,0.21,NA,0.01,0.43,0.43,7,XXX,0.00,0.00,0.00,5,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,85697036,,App mdlty 1+hubbrd tnk ea 15,A,,0.28,0.75,,0.75,NA,0.01,1.04,1.04,7,XXX,0.00,0.00,0.00,5,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00