Sayedhedayatollah Tadayon, MD
Epilepsy Physician · San Francisco, CA
Sayedhedayatollah Tadayon, MD is an epilepsy physician with a practice address in San Francisco, California, and NPI 1255957874, issued on Jun 19, 2020. Check the license (California A193470, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sayedhedayatollah Tadayon
- Credential
- MD
- Primary taxonomy
- Epilepsy Physician 2084E0001X
- License number
- A193470 CA
Self-reported in NPPES; status is on the state search - Practice location
- 513 Parnassus Ave Ste 672, San Francisco, CA 94143
- Phone
- (415) 353-2437
- Enumerated
- Jun 19, 2020
- Record last updated
- Jun 20, 2025
- Fax
- (781) 744-5358
- Medicare enrollment
- Enrolled (PECOS I20250703003123); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest epilepsy physician records → All 54 in California → Look up another NPI →
Verify Sayedhedayatollah Tadayon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A193470Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average epilepsy physician in 2024
33 Medicare Part D claims for 15 beneficiaries, against an average of 934 among the 476 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.
Bills Medicare through 2 group practices
- Ucsf Medical Group Business ServicesSan Francisco, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sayedhedayatollah Tadayon among 54 epilepsy physician records in California
Sayedhedayatollah Tadayon, MD is one of 54 epilepsy physician records with a practice address in California. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 4% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2013 · median 2010 among the 43 with a school on file
- Record last updated2025 · 7% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084E0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Epilepsy Physician providers in California
There are 54 epilepsy physician records in California.
All 54 in California → Every provider in San Francisco → Epilepsy Physician nationwide →
The 8 epilepsy physician records with the nearest ZIP codes
- Max Liu, MDSan Francisco, CA 941431376120063
- Clare TimbieSan Francisco, CA 941431760845440
- Victoria Liu, M.D.Burlingame, CA 940101508211202
- Fiona Baumer, MDPalo Alto, CA 943041386969715
- Roger Chang, MD, PHDPalo Alto, CA 943041679035216
- William Gallentine, MDPalo Alto, CA 943041578595211
- Hyunmi Kim, MD, PHDPalo Alto, CA 943041811191836
- Juliet Knowles, MD, PHDPalo Alto, CA 943041285926618
Common questions
What is Sayedhedayatollah Tadayon, MD's NPI number?
Sayedhedayatollah Tadayon, MD's National Provider Identifier (NPI) is 1255957874, issued on Jun 19, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Sayedhedayatollah Tadayon, MD located?
The NPPES record lists a practice address at 513 Parnassus Ave Ste 672, San Francisco, CA, 94143. Phone: (415) 353-2437. Providers update this record themselves, so call before visiting.
How can I verify Sayedhedayatollah Tadayon, MD's license?
NPPES lists California license number A193470, 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 Sayedhedayatollah Tadayon, MD prescribe under Medicare Part D?
In 2024, Sayedhedayatollah Tadayon, MD had 33 Medicare Part D claims for 15 beneficiaries; the average among epilepsy physician prescribers was 934. 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.