William F Duff, RPA-C
William F Duff is a Medical Physician Assistant based in Prescott, AZ with over 31 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
William F Duff, RPA-C practices as part of a group medical physician assistant practice in Prescott, AZ. With 31+ years of experience, he has been practicing in the Prescott area. Among his Medicare patients, common conditions include high cholesterol, hypertension, and arthritis (per CMS data). CMS MIPS quality score: 95.2/100 (2023).
At a glance
- Prescribes opioids less than 53% of reporting doctors in Arizona
- Uses generic medications more than 70% of reporting doctors in Arizona
- Federal MIPS score higher than 91% of MIPS-scored doctors in Arizona
- Virtual visits available — no app or travel required
Recent · 86dNPPES updated 2026-02-26 · verify NPI on CMS · Verify license at Arizona Medical Board
Contact & Location
Practice Location
2245 E State Route 69, Prescott, AZ 86301-5674
How Does This Doctor Compare?
Based on Medicare data, this doctor scores better than 91% of doctors in Arizona on federal quality measures, prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
MIPS Score
202395.2/100
Arizona avg: 77.5 · US avg: 83.6
✓ Higher than most doctors nationally(+11.6 pts)
Top 9% of MIPS-scored doctors in ArizonaHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better0.33%
Arizona avg: 6.7 · US avg: 5.1
✓ Higher than most doctors nationally(-4.8 pts)
Typical range among reporting doctors in Arizona0.33% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better90.7%
Arizona avg: 84.7 · US avg: 82.8
✓ Higher than most doctors nationally(+7.9 pts)
Better than 70% of reporting doctors in ArizonaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
102
Unique beneficiaries
Standard volumePrescription Recipients
1,599
Patients prescribed
Prescriptions Written
5,736
Total claims
Total Medicare drug cost: $476k
Percentile rankings compared against 1,247 reporting peers in Arizona.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+4%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-11%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↑ More patients than average (+4%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+2%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-5%) — less common here
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-5%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Feb 25, 2026
Self-reported via NPPES
31 years in practice
Senior practitioner
Definition to come...
Taxonomy: 363AM0700X
Mailing address
5910 W Dearing Rd, Prescott, AZ 86305-7376
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 100017
View hospital on Medicare Care CompareVirtual Medical Care With William F Duff
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with William F Duff for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Prescott required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about William F Duff
NPI records show Dr. Duff as active with telehealth listed in Prescott, AZ. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (833) 688-6247.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact William F Duff
Practice Location
2245 E State Route 69, Prescott, AZ 86301-5674
Mailing Address
5910 W Dearing Rd, Prescott, AZ 86305-7376
This is a provider directory. Contact the office directly to schedule appointments.
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