Anthony S. Oh, MD
Surgery Physician · Montclair, CA
Anthony S. Oh, MD is a surgery physician with a practice address in Montclair, California, and NPI 1154401354, issued on Oct 16, 2006. Check the license (California A850292, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Anthony S. Oh
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- A850292 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4950 San Bernardino St Ste 202, Montclair, CA 91763
- Phone
- (909) 621-7647
- Enumerated
- Oct 16, 2006
- Record last updated
- Apr 17, 2024
- Fax
- (877) 887-5774
- Medicaid ID
- 00A850290 CA
- Medicare enrollment
- Enrolled (PECOS I20040517000940); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 4950 San Bernardino St Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jared Wong, M.D.Surgery Physician1447586904
Verify Anthony S. Oh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A850292Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average surgery physician in 2024
97 Medicare Part D claims for 77 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 77 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen54 claims
- Acetaminophen-Codeine21 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 61.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $163.75
7 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Anthony S. OH, M.D., A Medical CorporationMontclair, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anthony S. Oh among 3,118 surgery physician records in California
Anthony S. Oh, MD is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1996 · median 2003 among the 1,901 with a school on file
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Montclair → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Jared Wong, M.D.Montclair, CA 917631447586904
- Stewart Rendon, M.D.Ontario, CA 917621922034255
- Joanna Lim, M.D.Ontario, CA 917611851612675
- Sunal Patel, M.D.Ontario, CA 917611770841124
- Marian Safaoui, MDPomona, CA 917661174814339
- Johanna Basa, M.D.Pomona, CA 917671821326380
- Vinod Garg, MDPomona, CA 917671962578120
- Andrew Michael, MDPomona, CA 917671922328590
Common questions
What is Anthony S. Oh, MD's NPI number?
Anthony S. Oh, MD's National Provider Identifier (NPI) is 1154401354, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Anthony S. Oh, MD located?
The NPPES record lists a practice address at 4950 San Bernardino St Ste 202, Montclair, CA, 91763. Phone: (909) 621-7647. Providers update this record themselves, so call before visiting.
How can I verify Anthony S. Oh, MD's license?
NPPES lists California license number A850292, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Anthony S. Oh, MD prescribe under Medicare Part D?
In 2024, Anthony S. Oh, MD had 97 Medicare Part D claims for 77 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Anthony S. Oh, MD's MIPS final score?
The 2023 MIPS final score is 61.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.