NPPES file of Aug 9, 2026

Geoffrey D. Weinstein, MD

Radiation Oncology Physician · San Diego, CA

Geoffrey D. Weinstein, MD is a radiation oncology physician with a practice address in San Diego, California, and NPI 1841233947, issued on Jun 14, 2006. Check the license (California A54109, 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
1841233947
Name
Geoffrey D. Weinstein
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
A54109 CA
Self-reported in NPPES; status is on the state search
Practice location
3075 Health Center Drive, San Diego, CA 92123
Phone
(858) 939-5010
Enumerated
Jun 14, 2006
Record last updated
Feb 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(858) 939-5021
Medicaid ID
00A541090 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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Verify Geoffrey D. Weinstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A54109
    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: $24.45

1 payment: food and beverage; the largest payer was Tempus AI, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Geoffrey Weinstein$24.45
  2. Specialty average$1,897.85

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

Geoffrey D. Weinstein among 735 radiation oncology physician records in California

Geoffrey D. Weinstein, MD is one of 735 radiation oncology physician records with a practice address in California. 83% 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 16% of them.

  • NPI issued2006 · 16% of these records are older, 55% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 74% of these records are
  • Record last updated2020 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in California

There are 735 radiation oncology physician records in California.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Lori Coleman, MDSan Diego, CA 921231053348920
  2. Croix Fossum, M.D.San Diego, CA 921231104351006
  3. Siavash Jabbari, MDSan Diego, CA 921231720314107
  4. Andrew Chang, M.D.San Diego, CA 921211255513859
  5. Jehee Choi, MDSan Diego, CA 921211619260056
  6. Brian Chou, MDSan Diego, CA 921211770070609
  7. Iain Macewan, M.D.San Diego, CA 921211326300401
  8. Atmaram Pai Panandiker, MDSan Diego, CA 921211871552950

Common questions

What is Geoffrey D. Weinstein, MD's NPI number?

Geoffrey D. Weinstein, MD's National Provider Identifier (NPI) is 1841233947, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Geoffrey D. Weinstein, MD located?

The NPPES record lists a practice address at 3075 Health Center Drive, San Diego, CA, 92123. Phone: (858) 939-5010. Providers update this record themselves, so call before visiting.

How can I verify Geoffrey D. Weinstein, MD's license?

NPPES lists California license number A54109, 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.