Siamak Barkhordarian, M.D.
Vascular Surgery Physician · Los Angeles, CA
Siamak Barkhordarian, M.D. is a vascular surgery physician with a practice address in Los Angeles, California, and NPI 1760564702, issued on Oct 19, 2006. Check the license (California A94148, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Siamak Barkhordarian
- Credential
- M.D.
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- A94148 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8631 W 3RD St Ste 540E, Los Angeles, CA 90048
- Phone
- (310) 880-3933
- Enumerated
- Oct 19, 2006
- Record last updated
- Sep 4, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (310) 693-2480
- Medicare enrollment
- Enrolled (PECOS I20070711000440); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 580 in California → Look up another NPI →
Verify Siamak Barkhordarian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A94148Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average vascular surgery physician in 2024
41 Medicare Part D claims for 22 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D.
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): 33.7 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).
Siamak Barkhordarian among 580 vascular surgery physician records in California
Siamak Barkhordarian, M.D. is one of 580 vascular surgery physician records with a practice address in California. 84% 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, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1995 · median 2003 among the 411 with a school on file
- Record last updated2014 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in California
There are 580 vascular surgery physician records in California.
All 580 in California → Every provider in Los Angeles → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- Ryan Abdul-HaqqWest Hollywood, CA 900481386087864
- Donald Baril, MDLos Angeles, CA 900481659576452
- Elizabeth Chou, MDLos Angeles, CA 900481780065292
- J. Cohen, M.D.Los Angeles, CA 900481720008964
- David Cossman, M.D.Los Angeles, CA 900481639199896
- Bruce Gewertz, M.D.Los Angeles, CA 900481255434890
- Heitham Hassoun, M.D.West Hollywood, CA 900481407806797
- Phillip Levin, M.D.Los Angeles, CA 900481417977661
Common questions
What is Siamak Barkhordarian, M.D.'s NPI number?
Siamak Barkhordarian, M.D.'s National Provider Identifier (NPI) is 1760564702, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Siamak Barkhordarian, M.D. located?
The NPPES record lists a practice address at 8631 W 3RD St Ste 540E, Los Angeles, CA, 90048. Phone: (310) 880-3933. Providers update this record themselves, so call before visiting.
How can I verify Siamak Barkhordarian, M.D.'s license?
NPPES lists California license number A94148, 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 Siamak Barkhordarian, M.D. prescribe under Medicare Part D?
In 2024, Siamak Barkhordarian, M.D. had 41 Medicare Part D claims for 22 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.
What is Siamak Barkhordarian, M.D.'s MIPS final score?
The 2023 MIPS final score is 33.7 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.