Grace Fong, D.O.
NPI 1952559585 · Family Medicine Physician · Larkspur, CA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Fong, D.O. is a Family Medicine Physician provider in Larkspur, CA (NPI 1952559585).
Provider details
- NPI number
- 1952559585
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A9698 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
263 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 125 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 91 | $140 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 21 | $142 |
| Automated Urinalysis Test81003 | 14 | $2 |
| Administration of Influenza Virus VaccineG0008 | 12 | $35 |
Typical Medicare-allowed amounts for these services range $2–$142 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 134 | 54 |
| Omeprazole | 83 | 31 |
| Losartan Potassium | 81 | 35 |
| Lisinopril | 79 | 37 |
| Hydrochlorothiazide | 73 | 27 |
| Amlodipine Besylate | 65 | 30 |
| Levothyroxine Sodium | 58 |
Practice location
Mailing address
Additional practice locations (2)
- 1383 N Mcdowell Blvd Ste 150Petaluma, CA 94954-7118Phone: (707) 308-2840Fax: (707) 573-5376
- 550 W Ranch View DrSte. 3000Rocklin, CA 95765-5391Phone: (916) 409-1400Fax: (916) 409-1499
Registry dates
- Enumerated
- 2008-09-08
- Last updated
- 2025-07-07
- Certified
- 2025-07-07
Frequently asked questions
- What is Grace Fong's NPI number?
- Grace Fong's National Provider Identifier (NPI) is 1952559585, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Fong's specialty?
- Grace Fong is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Fong located?
- Grace Fong's practice location on file with NPPES is 1100 Larkspur Landing Cir Ste 10, Larkspur, CA 94939-1836.
- What is Grace Fong's phone number?
- The practice phone number listed in the NPPES registry for Grace Fong is (415) 924-1214.
- Does Grace Fong accept Medicare?
- Grace Fong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Fong's NPI active?
- Yes — Grace Fong's NPI (1952559585) is active in the NPPES registry as of the last update on 2025-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.