Dr. Anthony Oh, MD
What this data tells you about Dr. Oh
Dr. Anthony Oh is a surgery specialist in Montclair, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Oh performed 1,239 Medicare services across 641 unique beneficiaries.
Between the years covered by Open Payments, Dr. Oh received a total of $36,209 from 9 pharmaceutical and/or device companies across 89 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in surgery. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Oh is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
665 | $65 | $130 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
115 | $105 | $200 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
92 | $96 | $180 |
| Insertion of non-tunneled central venous catheter A procedure to place a central venous catheter for infusion in patients aged 5 years or older. The catheter is inserted directly into a large vein without being tunneled under the skin. |
57 | $68 | $180 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
56 | $12 | $50 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
50 | $41 | $80 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
36 | $66 | $110 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
31 | $139 | $260 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
28 | $119 | $195 |
| Additional tissue removal, per 20 sq cm This code covers the removal of extra muscle or tissue in increments of 20 square centimeters or less. It is used to bill for additional areas treated beyond the initial procedure. |
25 | $44 | $150 |
| Muscle or tissue removal, 20 sq cm or less This procedure involves the surgical removal of muscle or other tissue from the body. The total area of the removed tissue is 20.0 square centimeters or less. |
17 | $117 | $300 |
| Tracheostomy for breathing tube insertion A surgical incision is made in the windpipe to insert a breathing tube. This procedure is performed on patients older than two years. |
17 | $247 | $700 |
| Removal of central venous port or pump A procedure to remove a central venous access device, such as a port or pump, from the body. |
14 | $156 | $300 |
| Endoscopic insertion of stomach tube A flexible endoscope is used to guide the placement of a tube into the stomach. |
13 | $100 | $350 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
12 | $82 | $150 |
| Fluoroscopic guidance for central vein access device Use of live X-ray imaging to guide the placement or removal of a central vein access device. |
11 | $15 | $50 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2019-2024) ›
Associated products mentioned in payments ›
The majority of payments (98%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in surgery and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 7% for surgery in CA.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Oh is a mixed practice specialist, with above-average Medicare volume (top 7% in CA), with speaking/promotional industry engagement in the top 7% of CA peers, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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