Registry data as of Aug 27, 2026

Adam Baumgarten, MD

Internal Medicine Physician · Larkspur, CA

Adam Baumgarten, MD is an internal medicine physician with a practice address in Larkspur, California, and NPI 1366570707, issued on Feb 28, 2007. Check the license (California A92273, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1366570707
Name
Adam Baumgarten
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A92273 CA
Self-reported in NPPES; status is on the state search
Practice location
2 Bon Air RD, Larkspur, CA 94939
Phone
(415) 927-0666
Enumerated
Feb 28, 2007
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 2 Bon Air RD

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

  1. Kathleen AbuPhysician Assistant1851415053
  2. James Adams, M.D.Cardiovascular Disease Physician1578553277
  3. Margaret Baer, M.D.Cardiovascular Disease Physician1104816917
  4. Nancy Bloom, R.D.Registered Dietitian1033325907
  5. William Bradley, ACNP-BCAcute Care Nurse Practitioner1992869176
  6. Cheri Brendel, RNRegistered Nurse1205977469

Verify Adam Baumgarten in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A92273
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

2.8 times the Medicare Part D claims of the average internal medicine physician in 2024

7,840 Medicare Part D claims for 1,094 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Adam Baumgarten7,840
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium889 claims
  2. Metoprolol Succinate741 claims
  3. Amlodipine Besylate589 claims
  4. Eliquis563 claims
  5. Rosuvastatin Calcium541 claims
  6. Losartan Potassium400 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.

Industry payments in 2024: $188.08

3 payments, mostly food and beverage; the largest payer was Edwards Lifesciences Corporation. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Adam Baumgarten$188.08
  2. Specialty average$2,536.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Regents Univ OF California UcsfSan Francisco, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

13 internal medicine physician records list a Larkspur practice address

They are 13 of the 291 NPPES records with a Larkspur practice address, and 20,403 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Adam Baumgarten, MD's NPI number?

Adam Baumgarten, MD's National Provider Identifier (NPI) is 1366570707, issued on Feb 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Adam Baumgarten, MD located?

The NPPES record lists a practice address at 2 Bon Air RD, Larkspur, CA, 94939. Phone: (415) 927-0666. Providers update this record themselves, so call before visiting.

How can I verify Adam Baumgarten, MD's license?

NPPES lists California license number A92273, 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 Adam Baumgarten, MD prescribe under Medicare Part D?

In 2024, Adam Baumgarten, MD had 7,840 Medicare Part D claims for 1,094 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.