NPPES file of Aug 9, 2026

Alan E. Williamson, M.D.

Vascular Surgery Physician · Rancho Mirage, CA

Alan E. Williamson, M.D. is a vascular surgery physician with a practice address in Rancho Mirage, California, and NPI 1487670220, issued on Jul 14, 2006. Check the license (California G68558, 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
1487670220
Name
Alan E. Williamson
Credential
M.D.
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License number
G68558 CA
Self-reported in NPPES; status is on the state search
Practice location
39300 Bob Hope Dr, Rancho Mirage, CA 92270
Phone
(760) 341-7088
Enumerated
Jul 14, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
00G685580 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 39300 Bob Hope Dr

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

  1. Bruce Chisholm, M.D.Oral & Maxillofacial Surgery (D.M.D.)1932206851
  2. Alan Coit, MDPediatrics Physician1073516738
  3. Anibal Gauto, M.D.Vascular Surgery Physician1386667780
  4. Elisa Lindley, MDGynecology Physician1639158694
  5. Murray Taylor, M.D.Family Medicine Physician1407872419

Verify Alan E. Williamson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G68558
    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: $106.12

1 payment: food and beverage; the largest payer was LeMaitre Vascular, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alan Williamson$106.12
  2. Specialty average$6,178.00

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

Alan E. Williamson among 580 vascular surgery physician records in California

Alan E. Williamson, M.D. is one of 580 vascular surgery physician records with a practice address in California. 84% 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, 54% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 71% of these records are
  • Record last updated2007 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Surgery Physician providers in California

There are 580 vascular surgery physician records in California.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. Trevor Derderian, M.D.Rancho Mirage, CA 922701124346697
  2. Anibal Gauto, M.D.Rancho Mirage, CA 922701386667780
  3. John Lee, M.D.Rancho Mirage, CA 922701932356177
  4. Gilberto Russo, M.D.Rancho Mirage, CA 922701346201811
  5. Kush Sharma, MDRancho Mirage, CA 922701427578004
  6. Pushpinder Sivia, MDRancho Mirage, CA 922701619132719
  7. Son Ha Yu, MDRancho Mirage, CA 922701073705778
  8. Anna Gasparyan, MDPalm Springs, CA 922621598055923

Common questions

What is Alan E. Williamson, M.D.'s NPI number?

Alan E. Williamson, M.D.'s National Provider Identifier (NPI) is 1487670220, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alan E. Williamson, M.D. located?

The NPPES record lists a practice address at 39300 Bob Hope Dr, Rancho Mirage, CA, 92270. Phone: (760) 341-7088. Providers update this record themselves, so call before visiting.

How can I verify Alan E. Williamson, M.D.'s license?

NPPES lists California license number G68558, 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.