NPPES file of Aug 9, 2026

Dennis Yunming Fong, M.D.

Family Medicine Physician · Walnut Creek, CA

Dennis Yunming Fong, M.D. is a family medicine physician with a practice address in Walnut Creek, California, and NPI 1356364871, issued on Jul 25, 2006. Check the license (California G83720, 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
1356364871
Name
Dennis Yunming Fong
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
G83720 CA
G82720 CA
Self-reported in NPPES; status is on the state search
Practice location
108 LA Casa Via, Walnut Creek, CA 94598
Phone
(925) 934-2333
Enumerated
Jul 25, 2006
Record last updated
Mar 22, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(925) 934-2688
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 Dennis Yunming Fong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G83720
    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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55% fewer Medicare Part D claims than the average family medicine physician in 2024

1,578 Medicare Part D claims for 194 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Dennis Fong1,578
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium260 claims
  2. Rosuvastatin Calcium83 claims
  3. Levothyroxine Sodium78 claims
  4. Amlodipine Besylate61 claims
  5. Lisinopril59 claims
  6. Spironolactone57 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: $169.20

2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dennis Fong$169.20
  2. Specialty average$902.55

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

Dennis Yunming Fong among 17,133 family medicine physician records in California

Dennis Yunming Fong, 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2017 · 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. Taejoon Ahn, M.D.Walnut Creek, CA 945981639198757
  2. Leatrice Chang, MDWalnut Creek, CA 945981700822053
  3. John Crockett, M.D.Walnut Creek, CA 945981134221021
  4. Paul Kim, M.D.Walnut Creek, CA 945981609831163
  5. Pavani Kuruma, MDWalnut Creek, CA 945981285601310
  6. Franklin Long, MD MPHTMWalnut Creek, CA 945981194744045
  7. Timmothy Merrigan, M.D.Walnut Creek, CA 945981063442945
  8. Tara Mostofi, PACWalnut Creek, CA 945981073728051

Common questions

What is Dennis Yunming Fong, M.D.'s NPI number?

Dennis Yunming Fong, M.D.'s National Provider Identifier (NPI) is 1356364871, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dennis Yunming Fong, M.D. located?

The NPPES record lists a practice address at 108 LA Casa Via, Walnut Creek, CA, 94598. Phone: (925) 934-2333. Providers update this record themselves, so call before visiting.

How can I verify Dennis Yunming Fong, M.D.'s license?

NPPES lists California license number G83720, 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 Dennis Yunming Fong, M.D. prescribe under Medicare Part D?

In 2024, Dennis Yunming Fong, M.D. had 1,578 Medicare Part D claims for 194 beneficiaries; 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.