NPPES file of Aug 9, 2026

Arthur Aronson, M.D.

Obesity Medicine (Internal Medicine) Physician · San Diego, CA

Arthur Aronson, M.D. is an obesity medicine (internal medicine) physician with a practice address in San Diego, California, and NPI 1780030122, issued on May 4, 2016. Check the license (California C41764, 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
1780030122
Name
Arthur Aronson
Credential
M.D.
Primary taxonomy
Obesity Medicine (Internal Medicine) Physician 207RB0002X
License number
C41764 CA
Self-reported in NPPES; status is on the state search
Practice location
450 A St Ste 400, San Diego, CA 92101
Phone
(619) 866-3333
Enumerated
May 4, 2016
Record last updated
May 4, 2016 (not updated in 10 years: call before relying on the address or phone)
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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8 nearest obesity medicine (internal medicine) physician records → All 17 in California → Look up another NPI →

Verify Arthur Aronson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C41764    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: $99.03

3 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Abbvie Inc. The 80 providers of this specialty with any payment received $6,310.67 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Arthur Aronson$99.03
  2. Specialty average$6,310.67

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

Arthur Aronson among 17 obesity medicine (internal medicine) physician records in California

Arthur Aronson, M.D. is one of 17 obesity medicine (internal medicine) physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 76% of them.

  • NPI issued2016 · 76% of these records are older, 18% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 41% of these records are
  • Record last updated2016 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RB0002X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obesity Medicine (Internal Medicine) Physician providers in California

There are 17 obesity medicine (internal medicine) physician records in California.

All 17 in California → Every provider in San Diego → Obesity Medicine (Internal Medicine) Physician nationwide →

The 8 obesity medicine (internal medicine) physician records with the nearest ZIP codes

  1. Eduardo Grunvald, M.DSan Diego, CA 921031497791339
  2. Quyen Dao, M.D.Tustin, CA 927801932305034
  3. Randall Caldron, MDWest Hills, CA 913071053475822
  4. Viktoriya Yanchuk, D.O.West Hills, CA 913071932587169
  5. Harpreet Singh, MDOxnard, CA 930301942258124
  6. Gerald Cox, MD, MPHLakewood, CA 907121477041333
  7. Melissa Chung, MDSanta Monica, CA 904041285123265
  8. Sooji Rugh, M.D.Mountain View, CA 940431770799538

Common questions

What is Arthur Aronson, M.D.'s NPI number?

Arthur Aronson, M.D.'s National Provider Identifier (NPI) is 1780030122, issued on May 4, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Arthur Aronson, M.D. located?

The NPPES record lists a practice address at 450 A St Ste 400, San Diego, CA, 92101. Phone: (619) 866-3333. Providers update this record themselves, so call before visiting.

How can I verify Arthur Aronson, M.D.'s license?

NPPES lists California license number C41764, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.