NPPES file of Aug 9, 2026

Seth David Weissman, MD

Internal Medicine Physician · Menlo Park, CA

Seth David Weissman, MD is an internal medicine physician with a practice address in Menlo Park, California, and NPI 1518921253, issued on Apr 12, 2006. Check the license (California G71054, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518921253
Name
Seth David Weissman
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G71054 CA
Self-reported in NPPES; status is on the state search
Practice location
401 Burgess Dr, Menlo Park, CA 94025
Phone
(650) 325-9906
Enumerated
Apr 12, 2006
Record last updated
Apr 24, 2024
Fax
(650) 325-1295
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 401 Burgess Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Darren Phelan, M.D.Emergency Medicine Physician1598878894
  2. Scott Wood, M.D.Internal Medicine Physician1740377696

Verify Seth David Weissman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G71054
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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49% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,619 Medicare Part D claims for 111 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 38 claims were for opioids.

  1. Seth Weissman1,619
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium124 claims
  2. Losartan Potassium78 claims
  3. Amlodipine Besylate68 claims
  4. Gabapentin51 claims
  5. Levothyroxine Sodium49 claims
  6. Omeprazole42 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.

Seth David Weissman among 17,696 internal medicine physician records in California

Seth David Weissman, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2024 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

47 internal medicine physician records list a practice address in Menlo Park

They are 47 of the 1,265 NPPES records with a practice address in Menlo Park, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Yumi Ando, M.D.Menlo Park, CA 940251376658146
  2. Sara Bunting, MDMenlo Park, CA 940251639181381
  3. Linda Fresco, MDMenlo Park, CA 940251811092901
  4. Susan Garay, MDMenlo Park, CA 940251437114006
  5. F McDowell, MDMenlo Park, CA 940251154384576
  6. Eileen Moy, MDMenlo Park, CA 940251083617583
  7. Anthony Powell, MDMenlo Park, CA 940251740247899
  8. Kristen Sherman, M.D.Menlo Park, CA 940251770513335

Common questions

What is Seth David Weissman, MD's NPI number?

Seth David Weissman, MD's National Provider Identifier (NPI) is 1518921253, issued on Apr 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Seth David Weissman, MD located?

The NPPES record lists a practice address at 401 Burgess Dr, Menlo Park, CA, 94025. Phone: (650) 325-9906. Providers update this record themselves, so call before visiting.

How can I verify Seth David Weissman, MD's license?

NPPES lists California license number G71054, 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 Seth David Weissman, MD prescribe under Medicare Part D?

In 2024, Seth David Weissman, MD had 1,619 Medicare Part D claims for 111 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.