Seth Weissman, MD
NPI 1518921253 · Internal Medicine Physician · Menlo Park, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seth Weissman, MD is a Internal Medicine Physician provider in Menlo Park, CA (NPI 1518921253).
Provider details
- NPI number
- 1518921253
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G71054 (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
20 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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 124 | 37 |
| Losartan Potassium | 78 | 17 |
| Amlodipine Besylate | 68 | 15 |
| Gabapentin | 51 | 13 |
| Levothyroxine Sodium | 49 | 12 |
| Zolpidem Tartrate | 42 | 16 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-12
- Last updated
- 2024-04-24
- Certified
- 2024-04-24
Frequently asked questions
- What is Seth Weissman's NPI number?
- Seth Weissman's National Provider Identifier (NPI) is 1518921253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seth Weissman's specialty?
- Seth Weissman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Seth Weissman located?
- Seth Weissman's practice location on file with NPPES is 401 Burgess Dr, Menlo Park, CA 94025-3469.
- What is Seth Weissman's phone number?
- The practice phone number listed in the NPPES registry for Seth Weissman is (650) 325-9906.
- Does Seth Weissman accept Medicare?
- Seth Weissman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seth Weissman's NPI active?
- Yes — Seth Weissman's NPI (1518921253) is active in the NPPES registry as of the last update on 2024-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.