NPPES file of Aug 9, 2026

Gary Aron, M.D.

Internal Medicine Physician · Redwood City, CA

Gary Aron, M.D. is an internal medicine physician with a practice address in Redwood City, California, and NPI 1619984911, issued on Aug 1, 2006. Check the license (California G036108, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619984911
Name
Gary Aron
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G036108 CA
Self-reported in NPPES; status is on the state search
Practice location
2900 Whipple Ave, Redwood City, CA 94062
Phone
(650) 298-8774
Enumerated
Aug 1, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(650) 298-8667
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 2900 Whipple Ave

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

  1. Kathleen Berra, N.P.Nurse Practitioner1386698520
  2. Shalini Bhambani, M.D.Cardiovascular Disease Physician1558635474
  3. Barrett Bryan, MDInternal Medicine Physician1033133954
  4. Luis Castro, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1679587893
  5. Elaine Chien, MDObstetrics & Gynecology Physician1457423295
  6. Matthew Dillon, P.A.Physician Assistant1952349284

Verify Gary Aron in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G036108
    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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About as many Medicare Part D claims as the average internal medicine physician in 2024

3,165 Medicare Part D claims for 313 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 67 claims were for opioids.

  1. Gary Aron3,165
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium309 claims
  2. Amlodipine Besylate237 claims
  3. Losartan Potassium157 claims
  4. Metformin Hcl103 claims
  5. Lisinopril76 claims
  6. Hydrochlorothiazide74 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.

The MIPS final score for 2023 (Medicare payment program): 96.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

85 internal medicine physician records list a practice address in Redwood City

They are 85 of the 2,795 NPPES records with a practice address in Redwood City, and 17,696 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 Gary Aron, M.D.'s NPI number?

Gary Aron, M.D.'s National Provider Identifier (NPI) is 1619984911, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gary Aron, M.D. located?

The NPPES record lists a practice address at 2900 Whipple Ave, Redwood City, CA, 94062. Phone: (650) 298-8774. Providers update this record themselves, so call before visiting.

How can I verify Gary Aron, M.D.'s license?

NPPES lists California license number G036108, 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 Gary Aron, M.D. prescribe under Medicare Part D?

In 2024, Gary Aron, M.D. had 3,165 Medicare Part D claims for 313 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Gary Aron, M.D.'s MIPS final score?

The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.