Stephen T. Copen, M.D.
Internal Medicine Physician · Los Angeles, CA
Stephen T. Copen, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1447264981, issued on Jul 28, 2006. Check the license (California G79517, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen T. Copen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G79517 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8631 W 3RD St # 1140E, Los Angeles, CA 90048
- Phone
- (310) 854-3390
- Enumerated
- Jul 28, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (310) 854-3392
- Medicaid ID
- 00G795170 CA
- Medicare enrollment
- Enrolled (PECOS I20040213000387); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 1993
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Stephen T. Copen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G79517Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,701 Medicare Part D claims for 228 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 79 claims were for opioids.
Most prescribed
- Atorvastatin Calcium342 claims
- Amlodipine Besylate180 claims
- Valsartan106 claims
- Telmisartan102 claims
- Rosuvastatin Calcium88 claims
- Metoprolol Succinate85 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): 5.1 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).
Stephen T. Copen among 17,696 internal medicine physician records in California
Stephen T. Copen, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1993 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Farshid Fararooy, M.D.Los Angeles, CA 900481922045939
- Eleonora Fedonenko, M.D.Los Angeles, CA 900481790721850
- Christina Harris, MDLos Angeles, CA 900481073553962
- Homayoon Khanlou, MDLos Angeles, CA 900481356335277
- Dorothy Lowe, M.D.Los Angeles, CA 900481275577835
Common questions
What is Stephen T. Copen, M.D.'s NPI number?
Stephen T. Copen, M.D.'s National Provider Identifier (NPI) is 1447264981, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen T. Copen, M.D. located?
The NPPES record lists a practice address at 8631 W 3RD St # 1140E, Los Angeles, CA, 90048. Phone: (310) 854-3390. Providers update this record themselves, so call before visiting.
How can I verify Stephen T. Copen, M.D.'s license?
NPPES lists California license number G79517, 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 Stephen T. Copen, M.D. prescribe under Medicare Part D?
In 2024, Stephen T. Copen, M.D. had 2,701 Medicare Part D claims for 228 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Stephen T. Copen, M.D.'s MIPS final score?
The 2023 MIPS final score is 5.1 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.