William Clark
NPI 1184362659 · Medical Physician Assistant · Prescott, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Clark is a Medical Physician Assistant provider in Prescott, AZ (NPI 1184362659).
Provider details
- NPI number
- 1184362659
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 9297 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
289 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 130 | $98 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 54 | $142 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 51 | $7 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 42 | $58 |
| Simple Repair of Surface Wound of Scalp, Neck, Underarms, Trunk, Arms, Or Legs, 2.6-7.5 Cm12002 | 12 | $46 |
Typical Medicare-allowed amounts for these services range $7–$142 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 75 | 74 |
| Cephalexin | 68 | 68 |
| Prednisone | 44 | 43 |
| Ondansetronbrand: Ondansetron Odt | 43 | 42 |
| Cefdinir | 39 | 37 |
| Azithromycin | 32 | 31 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 32 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-05-24
- Last updated
- 2023-12-05
- Certified
- 2023-12-05
Frequently asked questions
- What is William Clark's NPI number?
- William Clark's National Provider Identifier (NPI) is 1184362659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Clark's specialty?
- William Clark is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Clark located?
- William Clark's practice location on file with NPPES is 1042 Willow Creek Rd, Prescott, AZ 86301-1673.
- What is William Clark's phone number?
- The practice phone number listed in the NPPES registry for William Clark is (928) 379-0838.
- Does William Clark accept Medicare?
- William Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Clark's NPI active?
- Yes — William Clark's NPI (1184362659) is active in the NPPES registry as of the last update on 2023-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.