Barbara Weissman, M.D.
NPI 1619194743 · Psychiatry Physician · San Mateo, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Weissman, M.D. is a Psychiatry Physician provider in San Mateo, CA (NPI 1619194743).
Provider details
- NPI number
- 1619194743
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G072285 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Risperidone | 108 |
| Trazodone Hcl | 81 |
| Quetiapine Fumarate | 70 |
| Lorazepam | 68 |
| Olanzapine | 65 |
| Mirtazapine | 59 |
| Diazepam | 53 |
| Gabapentin | 50 |
| Sertraline Hcl | 47 |
| Lamotrigine |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-19
- Last updated
- 2015-07-17
Frequently asked questions
- What is Barbara Weissman's NPI number?
- Barbara Weissman's National Provider Identifier (NPI) is 1619194743, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Weissman's specialty?
- Barbara Weissman is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Weissman located?
- Barbara Weissman's practice location on file with NPPES is 1950 Alameda De Las Pulgas, San Mateo, CA 94403-1222.
- What is Barbara Weissman's phone number?
- The practice phone number listed in the NPPES registry for Barbara Weissman is (650) 573-2683.
- Does Barbara Weissman accept Medicare?
- Barbara Weissman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Weissman's NPI active?
- Yes — Barbara Weissman's NPI (1619194743) is active in the NPPES registry as of the last update on 2015-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.