Barbara Yates Sonner Weissman, M.D.
Psychiatry Physician · San Mateo, CA
Barbara Yates Sonner Weissman, M.D. is a psychiatry physician with a practice address in San Mateo, California, and NPI 1619194743, issued on Apr 19, 2007. Check the license (California G072285, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Barbara Yates Sonner Weissman
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G072285 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1950 Alameda DE Las Pulgas, San Mateo, CA 94403
- Phone
- (650) 573-2683
- Enumerated
- Apr 19, 2007
- Record last updated
- Jul 17, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (650) 572-9347
- Medicare enrollment
- Enrolled (PECOS I20110223001137); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1989
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1950 Alameda DE Las Pulgas
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Barbara Yates Sonner Weissman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G072285Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average psychiatry physician in 2024
1,173 Medicare Part D claims for 43 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Risperidone108 claims
- Trazodone Hcl81 claims
- Quetiapine Fumarate70 claims
- Lorazepam68 claims
- Olanzapine65 claims
- Mirtazapine59 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.
Bills Medicare through one group practice
- County OF San MateoDaly City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Barbara Yates Sonner Weissman among 8,673 psychiatry physician records in California
Barbara Yates Sonner Weissman, 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 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 48% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated1989 · median 2005 among the 3,295 with a school on file
- Record last updated2015 · 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).
89 psychiatry physician records list a practice address in San Mateo
They are 89 of the 3,909 NPPES records with a practice address in San Mateo, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in San Mateo → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Kathleen Akiyama, M.D.San Mateo, CA 944031194886879
- Nasrin Bashiri, MDSan Mateo, CA 944031700974920
- Hung-Ming Chu, M.D.San Mateo, CA 944031790834174
- Vikas Duvvuri, M.D., PH.D.San Mateo, CA 944031255470480
- D. Feeley, M.D.San Mateo, CA 944031548351158
- Mina Fisher, M.D.San Mateo, CA 944031124037874
- Nandini Ganpule, MDSan Mateo, CA 944031326110156
- Lynne Haynes-Tucker, MDSan Mateo, CA 944031689737157
Common questions
What is Barbara Yates Sonner Weissman, M.D.'s NPI number?
Barbara Yates Sonner Weissman, M.D.'s National Provider Identifier (NPI) is 1619194743, issued on Apr 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Barbara Yates Sonner Weissman, M.D. located?
The NPPES record lists a practice address at 1950 Alameda DE Las Pulgas, San Mateo, CA, 94403. Phone: (650) 573-2683. Providers update this record themselves, so call before visiting.
How can I verify Barbara Yates Sonner Weissman, M.D.'s license?
NPPES lists California license number G072285, 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 Barbara Yates Sonner Weissman, M.D. prescribe under Medicare Part D?
In 2024, Barbara Yates Sonner Weissman, M.D. had 1,173 Medicare Part D claims for 43 beneficiaries; 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.