Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Sayedhedayatollah Tadayon, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1255957874

Sayedhedayatollah Tadayon, MD is registered under Epileptologists in San Francisco, California. Qualified in 2013, 13 years ago. Practices with University of California San Francisco, a 1,793-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
13
Licensed in
CA
In the registry since
2020
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

San Francisco, CA

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • 41 Mall Rd, Burlington, MA 01805-0001 — (781) 744-5700

Specialties & licences

Epilepsy Physician (primary) Taxonomy 2084E0001X · Licence A193470 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1255957874
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 19, 2020
Last updated in NPPESJune 20, 2025
Certification dateJune 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEPILEPTOLOGISTS
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice University Of California San Francisco — 1793 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $158 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at University of California San Francisco

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1793 clinicians in the practice; 12 are shown here.

Other providers in San Francisco