NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1194745133 MD
Verify on CMS → Kent Diehl, MD
Family Medicine Physician in Flagstaff, 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
473
Medicare Part D claims · 265 beneficiaries · Family Medicine Physician avg: 3K
MIPS score
89/100
▲ 6 pts above national avg 83.1 · Exceptional
What the federal data shows
Kent Diehl, MD reported a CMS MIPS final score of 89/100 - above the 83.1 national average - and filed 473 Medicare Part D claims in 2023.
- 89/100
- MIPS score · +6 vs avg
- 473
- Part D claims, 2023
- 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.
Kent Diehl, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
89 Top 42% higher than 58% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Kent Diehl, MD sits
This provider among family medicine physician peers
Across the 22,040 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Kent Diehl, MD writes more Part D claims than 23% of them and scores higher on MIPS quality than 56% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Kent Diehl, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Kent Diehl, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Kent Diehl, MD?
High performer (top quartile)Primary specialty
Family Medicine Physician
Medicare Part D claims
473 86% vs specialty avg
MIPS final score
89/100 5.9 pts vs avg
Specialty distribution in Arizona
How Family Medicine Physician compares to other specialties among Arizona providers
Medicare quality performance, MIPS
Kent Diehl, MD's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 89/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Family Medicine Physician) - 89/100 vs national avg 83.1
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).
Kent Diehl, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 107 E OAK AVE, Flagstaff, AZ, 86001, with a listed phone of (928) 913-8800. NPI 1194745133 was issued on 07/20/2006.
Medicare Part D records for calendar year 2023 show 473 prescription claims written by this provider, covering 265 Medicare beneficiaries and totaling roughly $9K in drug spend, with an opioid prescribing rate of 19.9%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89/100 for the 2023 performance year (Quality 80.6), compared with the national average of 83.1.
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 | 1194745133 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/20/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
89.0223
Final Score
Avg: 83.1
80.586
Quality
99
Promoting Interoperability
Reporting: Group practice
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
473
Total Claims
$9K
Total Drug Cost
265
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 501
- Total Day Supply
- 5,065
- Generic Drug Cost
- $4K
- Opioid Claims
- 94 (19.9% rate)
- Antibiotic Claims
- 130
Patient Demographics
- Average Patient Age
- 71.7 years
- Avg HCC Risk Score
- 1.53
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 57, 65-74: 92, 75-84: 73, 85+: 43
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kent Diehl, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
69 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
45 claims
- Cefdinir
Cefdinir
31 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
30 claims
- Ondansetron Odt 23
Ondansetron Odt
23 claims
- Oxycodone-Acetamin… 21
Oxycodone-Acetaminophen
21 claims
- Ciprofloxacin Hcl 18
Ciprofloxacin Hcl
18 claims
- Furosemide 16
Furosemide
16 claims
| Drug | Claims |
|---|---|
| Prednisone | 69 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 45 |
| Cefdinir | 31 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 30 |
| Ondansetron Odt Ondansetron | 23 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 21 |
| Ciprofloxacin Hcl | 18 |
| Furosemide | 16 |
| Cyclobenzaprine Hcl | 12 |
| Levofloxacin | 12 |
* 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 Kent Diehl, MD 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
Kent Diehl, MD's 473 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 Diehl.
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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Arizona
Frequently Asked Questions
What is Kent Diehl, MD's specialty? ▼
Kent Diehl, MD specializes in Family Medicine Physician and practices in Flagstaff, Arizona. Credentials: MD.
How much does Kent Diehl, MD prescribe under Medicare Part D? ▼
In 2023, Kent Diehl, MD wrote 473 Medicare Part D claims totaling $9K in drug costs for 265 beneficiaries.
What is Kent Diehl, MD's Medicare quality score? ▼
Kent Diehl, MD has a CMS MIPS Final Score of 89/100 (Quality: 80.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kent Diehl, MD located? ▼
Kent Diehl, MD is located at 107 E OAK AVE, Flagstaff, AZ, 86001. Phone: (928) 913-8800.
What is Kent Diehl, MD's NPI number? ▼
Kent Diehl, MD's National Provider Identifier (NPI) is 1194745133, issued on 07/20/2006.
Does Kent Diehl, MD prescribe opioids? ▼
Yes, Kent Diehl, MD had 94 opioid claims in 2023 with an opioid prescribing rate of 19.9%.
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 Kent Diehl, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Kent Diehl, MD's most frequently prescribed drugs include Prednisone, Hydrocodone-Acetaminophen, Cefdinir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kent Diehl, MD accept Medicare? ▼
Kent Diehl, MD appears in CMS Medicare data with 473 Part D claims and 265 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kent Diehl, MD's credentials? ▼
Kent Diehl, MD's NPI is 1194745133 with credentials MD. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
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.