Siamak Elyasi, M.D.
Family Medicine Physician · Pittsburg, CA
Siamak Elyasi, M.D. is a family medicine physician with a practice address in Pittsburg, California, and NPI 1467407809, issued on May 24, 2006. Check the license (California A50205, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Siamak Elyasi
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A50205 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2220 Gladstone Dr, Pittsburg, CA 94565
- Phone
- (925) 779-9601
- Enumerated
- May 24, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (925) 432-4590
- Medicaid ID
- 00A502050 CA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2220 Gladstone Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine Cave, NPAdult Health Nurse Practitioner1144743386
- Gerald Delrio, M.D.Pulmonary Disease Physician1568417889
- John Gallo, DOInternal Medicine Physician1558446229
- Henry Gong, M.D.Interventional Cardiology Physician1215982855
- Hsien-Wen Hsu, M.D.Pulmonary Disease Physician1548209646
- Krishna Moorthy, M.D.Cardiovascular Disease Physician1811933724
Verify Siamak Elyasi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A50205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
114 Medicare Part D claims for 51 beneficiaries, against an average of 3,544 among the 117,163 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.
Siamak Elyasi among 17,133 family medicine physician records in California
Siamak Elyasi, 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 updated2026 · 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).
13 family medicine physician records list a practice address in Pittsburg
They are 13 of the 593 NPPES records with a practice address in Pittsburg, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Pittsburg → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nathan Brooks, MD, MPHPittsburgh, CA 945651154765394
- Mayra Carrillo, MDPittsburg, CA 945651407372170
- Gustavo Curbelo, MDPittsburg, CA 945651629298153
- Joan Hoffman, MDPittsburg, CA 945651417007782
- Jacqueline Johal-MoralesPittsburg, CA 945651609358373
- Julissa Lopez, MDPittsburg, CA 945651679063754
- Adolfo Romero-Duran, M.DPittsburg, CA 945651275690836
- Doris Rosellini, MDPittsburg, CA 945651730193012
Common questions
What is Siamak Elyasi, M.D.'s NPI number?
Siamak Elyasi, M.D.'s National Provider Identifier (NPI) is 1467407809, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Siamak Elyasi, M.D. located?
The NPPES record lists a practice address at 2220 Gladstone Dr, Pittsburg, CA, 94565. Phone: (925) 779-9601. Providers update this record themselves, so call before visiting.
How can I verify Siamak Elyasi, M.D.'s license?
NPPES lists California license number A50205, 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 Elyasi, M.D. prescribe under Medicare Part D?
In 2024, Siamak Elyasi, M.D. had 114 Medicare Part D claims for 51 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.