NPPES file of Aug 9, 2026

Mee-Jin Chong, M.D.

Family Medicine Physician · Walnut Creek, CA

Mee-Jin Chong, M.D. is a family medicine physician with a practice address in Walnut Creek, California, and NPI 1407994072, issued on Feb 3, 2007. Check the license (California A485210, 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
1407994072
Name
Mee-Jin Chong
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A485210 CA
Self-reported in NPPES; status is on the state search
Practice location
1828 Mt Diablo Blvd, Walnut Creek, CA 94596
Phone
(925) 932-8820
Enumerated
Feb 3, 2007
Record last updated
Jul 22, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(925) 932-8915
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 Mee-Jin Chong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A485210
    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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99% fewer Medicare Part D claims than the average family medicine physician in 2024

45 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Mee-Jin Chong45
  2. Specialty average3,544

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.

Mee-Jin Chong among 17,133 family medicine physician records in California

Mee-Jin Chong, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 47% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2014 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

116 family medicine physician records list a practice address in Walnut Creek

They are 116 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Sujay Banerjee, MDWalnut Creek, CA 945961174601249
  2. Sophie Barnes, NP-CWalnut Creek, CA 945961558729145
  3. Trevor Brodsky-Brooks, M.D.Walnut Creek, CA 945961407389331
  4. Ching Chang, MDWalnut Creek, CA 945961174545909
  5. Aurelia Gincauskas, MDWalnut Creek, CA 945961386722486
  6. Suzanne Gokel, D.O.Walnut Creek, CA 945961275606758
  7. Derek Jue, M.D.Walnut Creek, CA 945961679592976
  8. Ramya Kuchibhatla, MDWalnut Creek, CA 945961871081182

Common questions

What is Mee-Jin Chong, M.D.'s NPI number?

Mee-Jin Chong, M.D.'s National Provider Identifier (NPI) is 1407994072, issued on Feb 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mee-Jin Chong, M.D. located?

The NPPES record lists a practice address at 1828 Mt Diablo Blvd, Walnut Creek, CA, 94596. Phone: (925) 932-8820. Providers update this record themselves, so call before visiting.

How can I verify Mee-Jin Chong, M.D.'s license?

NPPES lists California license number A485210, 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 Mee-Jin Chong, M.D. prescribe under Medicare Part D?

In 2024, Mee-Jin Chong, M.D. had 45 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.