NPPES file of Aug 9, 2026

Aaron Brandon Chin, M.D.

Surgery Physician · Walnut Creek, CA

Aaron Brandon Chin, M.D. is a surgery physician with a practice address in Walnut Creek, California, and NPI 1093163271, issued on May 29, 2016. Check the license (California A175047, 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
1093163271
Name
Aaron Brandon Chin
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License numbers
A175047 CA
BP10056910 TX
Self-reported in NPPES; status is on the state search
Practice location
1425 S Main St, Walnut Creek, CA 94596
Phone
(925) 295-4000
Enumerated
May 29, 2016
Record last updated
Feb 4, 2022
Medicare enrollment
Enrolled (PECOS I20211227001292); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1425 S Main St

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

  1. Eric AaserudeEmergency Medicine Physician1811491194
  2. Derek Abbassi, MDObstetrics & Gynecology Physician1841364155
  3. Peter Ackerman, MDEmergency Medicine Physician1427435023
  4. Aaron Mark Acosta, DOEmergency Medicine Physician1538789987
  5. Basil Adad, MDOtolaryngology Physician1487732574
  6. Derek Ailes, M.D.Emergency Medical Services (Emergency Medicine) Physician1992001804

Verify Aaron Brandon Chin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A175047
    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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50% fewer Medicare Part D claims than the average surgery physician in 2024

74 Medicare Part D claims for 36 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 23 claims were for opioids.

  1. Aaron Chin74
  2. Specialty average147

Most prescribed

  1. Naproxen15 claims
  2. Oxycodone Hcl11 claims
  3. Tramadol Hcl11 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.

Industry payments in 2024: $112.05

3 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Aaron Chin$112.05
  2. Specialty average$3,513.80

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

Bills Medicare through one group practice

  1. Permanente Medical Group IncAntioch, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Aaron Brandon Chin among 3,118 surgery physician records in California

Aaron Brandon Chin, M.D. is one of 3,118 surgery physician records with a practice address in California. 75% 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 83% of them.

  • NPI issued2016 · 83% of these records are older, 14% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2016 · median 2003 among the 1,901 with a school on file
  • Record last updated2022 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in California

There are 3,118 surgery physician records in California.

The 8 surgery physician records with the nearest ZIP codes

  1. Anita Chiu, M.D.Walnut Creek, CA 945961740426618
  2. James Choi, MDWalnut Creek, CA 945961215016977
  3. Steven Freshman, MDWalnut Creek, CA 945961538247697
  4. William Greif, MDWalnut Creek, CA 945961013095108
  5. Teresa Kim, M.D.Walnut Creek, CA 945961386663433
  6. Gabrielle Levine, MDWalnut Creek, CA 945961851479919
  7. Thomas Macpherson, MDWalnut Creek, CA 945961366520454
  8. Kathleen Manning, MDWalnut Creek, CA 945961437290038

Common questions

What is Aaron Brandon Chin, M.D.'s NPI number?

Aaron Brandon Chin, M.D.'s National Provider Identifier (NPI) is 1093163271, issued on May 29, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Aaron Brandon Chin, M.D. located?

The NPPES record lists a practice address at 1425 S Main St, Walnut Creek, CA, 94596. Phone: (925) 295-4000. Providers update this record themselves, so call before visiting.

How can I verify Aaron Brandon Chin, M.D.'s license?

NPPES lists California license number A175047, 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 Aaron Brandon Chin, M.D. prescribe under Medicare Part D?

In 2024, Aaron Brandon Chin, M.D. had 74 Medicare Part D claims for 36 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

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.