NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1982915443 M.D.
Verify on CMS → Roger Begay, M.D.
Family Medicine Physician in Fort Defiance, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 141 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
75%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Roger Begay, M.D. filed 3,302 Medicare Part D claims in 2023 as a Family Medicine Physician in Fort Defiance, Arizona, prescribing 75% generic.
- 3K
- Part D claims, 2023
- 75%
- 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.
Roger Begay, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,302 Top 10% higher than 90% of 1,370,886 prescribers
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)
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).
What does the federal data show about Roger Begay, M.D.?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
3,302 3% vs specialty avg
Specialty distribution in Arizona
How Family Medicine Physician compares to other specialties among Arizona providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Medicine Physician. Verify directly:
How MIPS and board certification work
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. 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.
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 75% generic by claim count, with an opioid prescribing rate of 1.0%.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 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
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%
Family Medicine Physician average
18% brand-name claims vs 75% 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 / 75% 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.
What Roger Begay, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lisinopril
Lisinopril
339 claims
- Amlodipine Besylate
Amlodipine Besylate
165 claims
- Atorvastatin Calcium
Atorvastatin Calcium
141 claims
- Tamsulosin Hcl 134
Tamsulosin Hcl
134 claims
- Gabapentin 128
Gabapentin
128 claims
- Synthroid 126
Synthroid
126 claims
- Finasteride 111
Finasteride
111 claims
- Single Use Swab 108
Single Use Swab
108 claims
| 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.
147,760
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.
Dr. Muhammad Aamer
M.D.
Yuma, AZ
Dr. Ndidi Abara
M.D.
Yuma, AZ
Dr. Steven Abdelmalak
MD
Scottsdale, AZ
Dr. Lindsey Abeyta
FNP
Tucson, AZ
Dr. Modupeola Abiodun
M.D.
Chandler, AZ
Compare Family Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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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 75% 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 147,760 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.