NPPES file of Aug 9, 2026

Grace Fong, D.O.

Family Medicine Physician · Larkspur, CA

Grace Fong, D.O. is a family medicine physician with a practice address in Larkspur, California, and NPI 1952559585, issued on Sep 8, 2008. Check the license (California 20A9698, 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
1952559585
Name
Grace Fong
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A9698 CA
Self-reported in NPPES; status is on the state search
Practice location
1100 Larkspur Landing Cir Ste 10, Larkspur, CA 94939
Phone
(415) 924-1214
Enumerated
Sep 8, 2008
Record last updated
Jul 7, 2025
Fax
(415) 924-1375
Medicare enrollment
Enrolled (PECOS I20081215000631); may accept Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1100 Larkspur Landing Cir Ste 10

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

  1. Injil Abubakar, MDFamily Medicine Physician1013095041
  2. Saba Bagewadi, M.D.Pediatrics Physician1588059059
  3. Anjuli Brighton, MDPulmonary Disease Physician1407110588
  4. Robert DorisInternal Medicine Physician1528647096
  5. Maria Garcia-Ball, RNFamily Nurse Practitioner1972987519
  6. John Graham, M.D.Family Medicine Physician1306836366

Verify Grace 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 20A9698
    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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42% fewer Medicare Part D claims than the average family medicine physician in 2024

2,057 Medicare Part D claims for 351 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 48 claims were for opioids.

  1. Grace Fong2,057
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium134 claims
  2. Omeprazole83 claims
  3. Losartan Potassium81 claims
  4. Lisinopril79 claims
  5. Hydrochlorothiazide73 claims
  6. Amlodipine Besylate65 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.

Bills Medicare through 2 group practices

  1. Regents Univ OF California UcsfSan Francisco, CA
  2. Sutter Bay Medical FoundationPetaluma, CA

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

Grace Fong among 17,133 family medicine physician records in California

Grace Fong, D.O. 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 2008, is newer than 53% of them.

  • NPI issued2008 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2005 · median 2005 among the 10,652 with a school on file
  • Record last updated2025 · 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).

6 family medicine physician records list a practice address in Larkspur

They are 6 of the 291 NPPES records with a practice address in Larkspur, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Injil Abubakar, MDLarkspur, CA 949391013095041
  2. Dylan Bellavance, DOLarkspur, CA 949391013414507
  3. Jacqueline Chan, D.O./OSTEOPATHLarkspur, CA 949391740267715
  4. John Graham, M.D.Larkspur, CA 949391306836366
  5. Adhira Gupta, MDLarkspur, CA 949391588243729
  6. Gerald Freedman, M.D.Mill Valley, CA 949411023007069
  7. Sarah Lowenthal, M.D.Mill Valley, CA 949411790813046
  8. Zeljko Milovanovic, M.D.Mill Valley, CA 949411548278633

Common questions

What is Grace Fong, D.O.'s NPI number?

Grace Fong, D.O.'s National Provider Identifier (NPI) is 1952559585, issued on Sep 8, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Grace Fong, D.O. located?

The NPPES record lists a practice address at 1100 Larkspur Landing Cir Ste 10, Larkspur, CA, 94939. Phone: (415) 924-1214. Providers update this record themselves, so call before visiting.

How can I verify Grace Fong, D.O.'s license?

NPPES lists California license number 20A9698, 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 Grace Fong, D.O. prescribe under Medicare Part D?

In 2024, Grace Fong, D.O. had 2,057 Medicare Part D claims for 351 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.