2026 NPPES data Family Medicine Physician NPI 1982915443 M.D.
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ROGER BEGAY, M.D.

Family Medicine Physician in FORT DEFIANCE, Arizona. 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
3K
Medicare Part D claims · 141 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ROGER BEGAY, M.D. is a Family Medicine Physician ([object Object]) practicing in FORT DEFIANCE, Arizona with a Medicare Part D prescribing footprint of 3K claims across 141 beneficiaries — 18% brand-name prescribing .

What stands out: ROGER BEGAY, M.D. filed 3,302 Medicare Part D claims in 2023 across FORT DEFIANCE, Arizona. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ROGER BEGAY, 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).

ROGER BEGAY, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/29/2010

NPI 1982915443

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

3,302 3% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Arizona

How Family Medicine Physician compares to other specialties among Arizona providers

Arizona providers

Family Medicine Physician share within Arizona

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

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).

ROGER BEGAY, M.D. is a Family Medicine Physician provider practicing in FORT DEFIANCE, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1982915443. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ROGER BEGAY, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at CORNER OF ROUTE N12 AND N7, FORT DEFIANCE, AZ, 86504, with a listed phone of (928) 729-8000. NPI 1982915443 was issued on 06/29/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BEGAY 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 3,302 prescription claims written by this provider, covering 141 Medicare beneficiaries and totaling roughly $261K in drug spend, split 18% brand-name and 82% generic by claim count, with an opioid prescribing rate of 1.0%. 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

CORNER OF ROUTE N12 AND N7
FORT DEFIANCE, AZ 86504

Provider Details

NPI 1982915443
Specialty Family Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 06/29/2010

Hospital and facility affiliations

Facilities where ROGER BEGAY, 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.

THE FORT DEFIANCE INDIAN HOSPITAL BOARD, INCORPORATION
FORT DEFIANCE, AZ

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

Brand vs generic prescribing mix · Typical

ROGER BEGAY, M.D. — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 3,302 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.

3,302
Total Claims
$261K
Total Drug Cost
141
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,332
Total Day Supply
98,149
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$237K
Generic Drug Cost
$19K
Opioid Claims
33 (1.0% rate)

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
1.39
Gender Split
58% female / 42% male
Age Distribution
<65: 28, 65-74: 54, 75-84: 37, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Lisinopril
339
Amlodipine Besylate
165
Atorvastatin Calcium
141
Tamsulosin Hcl
134
Gabapentin
128
Synthroid
Levothyroxine Sodium
126
Finasteride
111
Single Use Swab
Alcohol Antiseptic Pads
108
Simvastatin
106
Furosemide
98

* 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 ROGER BEGAY, 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

ROGER BEGAY, M.D.'s 3,302 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Arizona

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

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

Frequently Asked Questions

What is ROGER BEGAY, M.D.'s specialty?
ROGER BEGAY, M.D. specializes in Family Medicine Physician and practices in FORT DEFIANCE, Arizona. Credentials: M.D..
How much does ROGER BEGAY, M.D. prescribe under Medicare Part D?
In 2023, ROGER BEGAY, M.D. wrote 3,302 Medicare Part D claims totaling $261K in drug costs for 141 beneficiaries.
Where is ROGER BEGAY, M.D. located?
ROGER BEGAY, M.D. is located at CORNER OF ROUTE N12 AND N7, FORT DEFIANCE, AZ, 86504. Phone: (928) 729-8000.
What is ROGER BEGAY, M.D.'s NPI number?
ROGER BEGAY, M.D.'s National Provider Identifier (NPI) is 1982915443, issued on 06/29/2010.
Does ROGER BEGAY, M.D. prescribe more brand-name or generic drugs?
ROGER BEGAY, M.D.'s prescribing is 18% brand-name and 82% generic drugs by claim count, with $237K in brand drug costs.
Does ROGER BEGAY, M.D. prescribe opioids?
Yes, ROGER BEGAY, M.D. had 33 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
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 ROGER BEGAY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ROGER BEGAY, M.D.'s most frequently prescribed drugs include Lisinopril, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROGER BEGAY, M.D. accept Medicare?
ROGER BEGAY, M.D. appears in CMS Medicare data with 3,302 Part D claims and 141 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROGER BEGAY, M.D.'s credentials?
ROGER BEGAY, M.D.'s NPI is 1982915443 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