NPPES file of Aug 9, 2026

John M. Berry, M.D.

Medical Oncology Physician · San Francisco, CA

John M. Berry, M.D. is a medical oncology physician with a practice address in San Francisco, California, and NPI 1942236997, issued on Jun 23, 2006. Check the license (California G52443, 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
1942236997
Name
John M. Berry
Credential
M.D.
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
G52443 CA
Self-reported in NPPES; status is on the state search
Practice location
1600 Divisadero St, San Francisco, CA 94115
Phone
(415) 353-7100
Enumerated
Jun 23, 2006
Record last updated
Sep 11, 2025
Fax
(415) 353-7150
Medicaid ID
00G524430 CA
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 1600 Divisadero St

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

  1. Betsy Althaus, PHARM.D.Pharmacist1366650657
  2. Mehrdad Arjomandi, MDCritical Care Medicine (Internal Medicine) Physician1912951153
  3. Chloe Atreya, MD, PHDMedical Oncology Physician1326058777
  4. Ronald Balassanian, MDAnatomic Pathology & Clinical Pathology Physician1043282379
  5. Christopher Benz, M.D.Medical Oncology Physician1457381014
  6. Emily Bergsland, MDMedical Oncology Physician1295792729

Verify John M. Berry in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G52443
    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.

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Industry payments in 2024: $101.80

4 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Berry$102
  2. Specialty average$11,773

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

John M. Berry among 447 medical oncology physician records in California

John M. Berry, M.D. is one of 447 medical oncology physician records with a practice address in California. 82% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 70% of these records are
  • Record last updated2025 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in California

There are 447 medical oncology physician records in California.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Chloe Atreya, MD, PHDSan Francisco, CA 941151326058777
  2. Christopher Benz, M.D.San Francisco, CA 941151457381014
  3. Emily Bergsland, MDSan Francisco, CA 941151295792729
  4. Charles Dollbaum, M.D.San Francisco, CA 941151205863552
  5. Thierry Jahan, MDSan Francisco, CA 941151427007657
  6. Kevin Kim, M.D.San Francisco, CA 941151851485056
  7. Alan Kramer, MDSan Francisco, CA 941151356357347
  8. David Minor, MDSan Francisco, CA 941151023042942

Common questions

What is John M. Berry, M.D.'s NPI number?

John M. Berry, M.D.'s National Provider Identifier (NPI) is 1942236997, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John M. Berry, M.D. located?

The NPPES record lists a practice address at 1600 Divisadero St, San Francisco, CA, 94115. Phone: (415) 353-7100. Providers update this record themselves, so call before visiting.

How can I verify John M. Berry, M.D.'s license?

NPPES lists California license number G52443, 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.

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.