2026 NPPES data Family Medicine Physician NPI 1851316061 M.D.
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ARTHUR FONG, M.D.

Family Medicine Physician in FAIR OAKS, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
2K
Medicare Part D claims · 215 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ARTHUR FONG, M.D. filed 1,723 Medicare Part D claims in 2023 as a Family Medicine Physician in FAIR OAKS, California, prescribing 91% generic.

2K
Part D claims, 2023
91%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

ARTHUR FONG, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,723 Top 17% higher than 83% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). This entry sits in this band. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

ARTHUR FONG, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ARTHUR FONG, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/12/2006

NPI 1851316061

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

1,723 50% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in California

How Family Medicine Physician compares to other specialties among California providers

California providers

Family Medicine Physician share within California

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ARTHUR FONG, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 6600 MERCY COURT, FAIR OAKS, CA, 95628, with a listed phone of (916) 863-1193. NPI 1851316061 was issued on 07/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FONG most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,723 prescription claims written by this provider, covering 215 Medicare beneficiaries and totaling roughly $105K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 2.5%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

6600 MERCY COURT
FAIR OAKS, CA 95628

Provider Details

NPI 1851316061
Specialty Family Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 07/12/2006

Hospital and facility affiliations

Facilities where ARTHUR FONG, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

PHYSICIAN ASSISTANT SURGICAL ASSIST INC
FOLSOM, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to ARTHUR FONG, M.D.. To verify ARTHUR FONG, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

ARTHUR FONG, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 1,723 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,723
Total Claims
$105K
Total Drug Cost
215
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,468
Total Day Supply
101,653
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$67K
Generic Drug Cost
$38K
Opioid Claims
43 (2.5% rate)
Antibiotic Claims
79

Patient Demographics

Average Patient Age
73.9 years
Avg HCC Risk Score
0.77
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What ARTHUR FONG, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Levothyroxine Sodium
119
Atorvastatin Calcium
118
Lovastatin
96
Azelastine Hcl
93
Fluticasone Propionate
80
Omeprazole
59
Lisinopril
56
Citalopram Hbr
Citalopram Hydrobromide
43
Rosuvastatin Calcium
39
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
37

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Medicine Physician Overview

How ARTHUR FONG, M.D. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

ARTHUR FONG, M.D.'s 1,723 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as FONG.

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ARTHUR FONG, M.D.'s specialty?
ARTHUR FONG, M.D. specializes in Family Medicine Physician and practices in FAIR OAKS, California. Credentials: M.D..
How much does ARTHUR FONG, M.D. prescribe under Medicare Part D?
In 2023, ARTHUR FONG, M.D. wrote 1,723 Medicare Part D claims totaling $105K in drug costs for 215 beneficiaries.
Where is ARTHUR FONG, M.D. located?
ARTHUR FONG, M.D. is located at 6600 MERCY COURT, FAIR OAKS, CA, 95628. Phone: (916) 863-1193.
What is ARTHUR FONG, M.D.'s NPI number?
ARTHUR FONG, M.D.'s National Provider Identifier (NPI) is 1851316061, issued on 07/12/2006.
Does ARTHUR FONG, M.D. prescribe more brand-name or generic drugs?
ARTHUR FONG, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $67K in brand drug costs.
Does ARTHUR FONG, M.D. prescribe opioids?
Yes, ARTHUR FONG, M.D. had 43 opioid claims in 2023 with an opioid prescribing rate of 2.5%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does ARTHUR FONG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ARTHUR FONG, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Lovastatin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ARTHUR FONG, M.D. accept Medicare?
ARTHUR FONG, M.D. appears in CMS Medicare data with 1,723 Part D claims and 215 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ARTHUR FONG, M.D.'s credentials?
ARTHUR FONG, M.D.'s NPI is 1851316061 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology