Thomas Yan
Student in an Organized Health Care Education/Training Program · Palo Alto, CA
Thomas Yan is a student in an organized health care education/training program with a practice address in Palo Alto, California, and NPI 1093336430, issued on Apr 27, 2020. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thomas Yan
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 900 Welch RD Ste 350, Palo Alto, CA 94304
- Phone
- (650) 723-9215
- Enumerated
- Apr 27, 2020
- Record last updated
- Apr 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20240222002756); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 40,652 in California → Look up another NPI →
Also registered at 900 Welch RD Ste 350
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Areeba Abid, MDStudent in an Organized Health Care Education/Training Program1982363941
- Dalton BrunsonStudent in an Organized Health Care Education/Training Program1730977281
- Claire CassianniStudent in an Organized Health Care Education/Training Program1538957063
- Brenda Castolo, AGACNP-BCNurse Practitioner1083195408
- Peter Davis-Allen, MDEmergency Medicine Physician1043839657
- Ursula Dean, BSN, RN, MSN, NPFamily Nurse Practitioner1063813350
Verify Thomas Yan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
40 Medicare Part D claims for 38 beneficiaries, against an average of 185 among the 59,748 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
- Emergency Physicians Associates San Jose PCSan Jose, CA
- Permanente Medical Group IncSouth San Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Yan among 40,652 student in an organized health care education/training program records in California
Thomas Yan is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% 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 24% of them.
- NPI issued2020 · 24% of these records are older, 72% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 6% of these records are
- Graduated2020 · median 2017 among the 2,409 with a school on file
- Record last updated2020 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
655 student in an organized health care education/training program records list a practice address in Palo Alto
They are 655 of the 7,617 NPPES records with a practice address in Palo Alto, and 40,652 student in an organized health care education/training program records in California.
All 40,652 in California → Every provider in Palo Alto → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Jerry Chen, M.D.Palo Alto, CA 943041760643837
- Ian Chen, M.D.Palo Alto, CA 943041477855294
- Allison Collins, M.D.Palo Alto, CA 943041215124268
- Susan FlatmoPalo Alto, CA 943041871613307
- Michael Friedberg, MAPalo Alto, CA 943041679898852
- Roni GavishPalo Alto, CA 943041811152770
- Emily JohnstonPalo Alto, CA 943041992020085
- Stephanie Knueppel, DDSPalo Alto, CA 943041942588116
Common questions
What is Thomas Yan's NPI number?
Thomas Yan's National Provider Identifier (NPI) is 1093336430, issued on Apr 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Yan located?
The NPPES record lists a practice address at 900 Welch RD Ste 350, Palo Alto, CA, 94304. Phone: (650) 723-9215. Providers update this record themselves, so call before visiting.
How can I verify Thomas Yan's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Thomas Yan prescribe under Medicare Part D?
In 2024, Thomas Yan had 40 Medicare Part D claims for 38 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.