Stephan P. Wyss, MD
Psychiatry Physician · South San Francisco, CA
Stephan P. Wyss, MD is a psychiatry physician with a practice address in South San Francisco, California, and NPI 1932287539, issued on Nov 1, 2006. Check the license (California A52389, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephan P. Wyss
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A52389 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 EL Camino Real, South San Francisco, CA 94080
- Phone
- (650) 742-2000
- Enumerated
- Nov 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00A523890 CA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1200 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephan P. Wyss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A52389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average psychiatry physician in 2024
70 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Aristada12 claims
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.
Stephan P. Wyss among 8,673 psychiatry physician records in California
Stephan P. Wyss, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in South San Francisco → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Vincent Dilella, MDSouth San Francisco, CA 940801245318898
- Ronald Holt, DOSouth San Francisco, CA 940801265511398
- Thomas Lupton, MDSouth San Francisco, CA 940801518045145
- Michael Trindle, M.D.South San Francisco, CA 940801003947219
- Salima Brillman, MDSunnyvale, CA 940851841292455
- Catherine ShirSunnyvale, CA 940851417418013
- Rachel Goldstein, M.D.Sunnyvale, CA 940861891979738
- Jennifer Le, M.D.Sunnyvale, CA 940861336267921
Common questions
What is Stephan P. Wyss, MD's NPI number?
Stephan P. Wyss, MD's National Provider Identifier (NPI) is 1932287539, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephan P. Wyss, MD located?
The NPPES record lists a practice address at 1200 EL Camino Real, South San Francisco, CA, 94080. Phone: (650) 742-2000. Providers update this record themselves, so call before visiting.
How can I verify Stephan P. Wyss, MD's license?
NPPES lists California license number A52389, 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 Stephan P. Wyss, MD prescribe under Medicare Part D?
In 2024, Stephan P. Wyss, MD had 70 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.