NPPES file of Aug 9, 2026

Abdollah Yousefzadeh

Internal Medicine Physician · Los Angeles, CA

Abdollah Yousefzadeh is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1144617481, issued on Apr 24, 2015. Check the license (California A157503, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144617481
Name
Abdollah Yousefzadeh
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A157503 CA
Self-reported in NPPES; status is on the state search
Practice location
3513 E 1St St, Los Angeles, CA 90063
Phone
(323) 859-2660
Enumerated
Apr 24, 2015
Record last updated
Sep 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(323) 859-2666
Medicare enrollment
Enrolled (PECOS I20190412000978); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Abdollah Yousefzadeh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A157503
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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91% fewer Medicare Part D claims than the average internal medicine physician in 2024

279 Medicare Part D claims for 100 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 13 claims were for opioids.

  1. Abdollah Yousefzadeh279
  2. Specialty average3,176

Most prescribed

  1. Procrit22 claims
  2. Atorvastatin Calcium20 claims
  3. Levofloxacin20 claims
  4. Amlodipine Besylate18 claims
  5. Furosemide16 claims
  6. Pantoprazole Sodium13 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.

Bills Medicare through one group practice

  1. Providence Saint Johns Medical FoundationSanta Monica, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Abdollah Yousefzadeh among 17,696 internal medicine physician records in California

Abdollah Yousefzadeh 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 2015, is newer than 76% of them.

  • NPI issued2015 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2007 · median 2004 among the 11,065 with a school on file
  • Record last updated2021 · 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Etsemaye Agonafer, M.D., M.P.H, M.S.Los Angeles, CA 900641689092215
  2. Matthew DudaLos Angeles, CA 900641992116735
  3. Bradley Friedman, M.D.Los Angeles, CA 900641831383082
  4. Bruce Gillis, M.D.Los Angeles, CA 900641013945542
  5. Keivan Golchini, MDLos Angeles, CA 900641528074812
  6. Matthew Jung, MDLos Angeles, CA 900641588970115
  7. Robert Kakehashi, M.D.Los Angeles, CA 900641255486072
  8. David Martins, GENERAL INTERNISTLos Angeles, CA 900621104953074

Common questions

What is Abdollah Yousefzadeh's NPI number?

Abdollah Yousefzadeh's National Provider Identifier (NPI) is 1144617481, issued on Apr 24, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Abdollah Yousefzadeh located?

The NPPES record lists a practice address at 3513 E 1St St, Los Angeles, CA, 90063. Phone: (323) 859-2660. Providers update this record themselves, so call before visiting.

How can I verify Abdollah Yousefzadeh's license?

NPPES lists California license number A157503, 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 Abdollah Yousefzadeh prescribe under Medicare Part D?

In 2024, Abdollah Yousefzadeh had 279 Medicare Part D claims for 100 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.