Ronald Seff, M.D.
Psychiatry Physician · Woodside, CA
Ronald Seff, M.D. is a psychiatry physician with a practice address in Woodside, California, and NPI 1891792925, issued on Jul 5, 2005. Check the license (California G329550, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ronald Seff
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G329550 CA
Self-reported in NPPES; status is on the state search - Practice location
- 135 Summit RD, Woodside, CA 94062
- Phone
- (650) 464-6539
- Enumerated
- Jul 5, 2005
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (650) 529-1370
- Medicaid ID
- 00G329550 CA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify Ronald Seff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G329550Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average psychiatry physician in 2024
3,579 Medicare Part D claims for 123 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Olanzapine264 claims
- Lorazepam186 claims
- Divalproex Sodium139 claims
- Quetiapine Fumarate131 claims
- Clozapine121 claims
- Benztropine Mesylate113 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 91 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $13.55
1 payment: food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ronald Seff among 8,673 psychiatry physician records in California
Ronald Seff, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% 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).
2 psychiatry physician records list a practice address in Woodside
They are 2 of the 52 NPPES records with a practice address in Woodside, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Woodside → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Frank Adair, M.D.Redwood City, CA 940621043242381
- Alan Brauer, M.D.Redwood City, CA 940621972693307
- Gemma Guillermo, M.D.Redwood City, CA 940621831154418
- Norman Weinstein, M.D.Woodside, CA 940621194968032
- Joris Wiggers, M.D.Redwood City, CA 940621104994037
- Anil Assudani, M.D,Redwood City, CA 940631497753909
- Sarah Carey, MDRedwood City, CA 940631164509345
- John Furman, M.D.Redwood City, CA 940631639251697
Common questions
What is Ronald Seff, M.D.'s NPI number?
Ronald Seff, M.D.'s National Provider Identifier (NPI) is 1891792925, issued on Jul 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Seff, M.D. located?
The NPPES record lists a practice address at 135 Summit RD, Woodside, CA, 94062. Phone: (650) 464-6539. Providers update this record themselves, so call before visiting.
How can I verify Ronald Seff, M.D.'s license?
NPPES lists California license number G329550, 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 Ronald Seff, M.D. prescribe under Medicare Part D?
In 2024, Ronald Seff, M.D. had 3,579 Medicare Part D claims for 123 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Ronald Seff, M.D.'s MIPS final score?
The 2023 MIPS final score is 91 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.