Chang Hyun Oh, M.D.
Family Medicine Physician · Temecula, CA
Chang Hyun Oh, M.D. is a family medicine physician with a practice address in Temecula, California, and NPI 1477613941, issued on Dec 12, 2006. Check the license (California A37083, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chang Hyun Oh
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A37083 CA
Self-reported in NPPES; status is on the state search - Practice location
- 28991 Old Town Front St, Temecula, CA 92590
- Phone
- (951) 693-5001
- Enumerated
- Dec 12, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (951) 694-0249
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 28991 Old Town Front St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dana Burrell, RNRegistered Nurse1275352460
- Amy Caveney, M.A., B.C.B.A.Behavior Analyst1598073678
- Christine CortesBehavior Technician1154868354
- Dayna GiehlBehavior Technician1760913693
- Sophelia LockeBehavior Technician1861923468
- Sean McAteerBehavior Technician1548795362
Verify Chang Hyun Oh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A37083Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average family medicine physician in 2024
1,798 Medicare Part D claims for 122 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Vascepa81 claims
- Amlodipine Besylate71 claims
- Celecoxib63 claims
- Gabapentin49 claims
- Losartan Potassium49 claims
- Rosuvastatin Calcium47 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): 17.3 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: $142.90
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 55,478 providers of this specialty with any payment received $902.55 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.
Chang Hyun Oh among 17,133 family medicine physician records in California
Chang Hyun Oh, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
80 family medicine physician records list a practice address in Temecula
They are 80 of the 4,057 NPPES records with a practice address in Temecula, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Temecula → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Cristina Bailey, M.D.Temecula, CA 925901598715823
- David Bucher, MDTemecula, CA 925901790735033
- Walter Combs, MDTemecula, CA 925901104876598
- Mary Gentile, DOTemecula, CA 925901861480998
- Gerardo Hizon, MD, FAAFP, CAQSMTemecula, CA 925901205898558
- Claudia Hsieh, D.O.Temecula, CA 925901255515979
- Tae-Woong Im, MDTemecula, CA 925901912956855
- Samuel Ko, MDTemecula, CA 925901457301855
Common questions
What is Chang Hyun Oh, M.D.'s NPI number?
Chang Hyun Oh, M.D.'s National Provider Identifier (NPI) is 1477613941, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chang Hyun Oh, M.D. located?
The NPPES record lists a practice address at 28991 Old Town Front St, Temecula, CA, 92590. Phone: (951) 693-5001. Providers update this record themselves, so call before visiting.
How can I verify Chang Hyun Oh, M.D.'s license?
NPPES lists California license number A37083, 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 Chang Hyun Oh, M.D. prescribe under Medicare Part D?
In 2024, Chang Hyun Oh, M.D. had 1,798 Medicare Part D claims for 122 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Chang Hyun Oh, M.D.'s MIPS final score?
The 2023 MIPS final score is 17.3 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.