William Morrison, MD PH.D MPAS
NPI 1366575417 · Physician Assistant · Suffolk, VA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Morrison, MD PH.D MPAS is a Physician Assistant provider in Suffolk, VA (NPI 1366575417).
Provider details
- NPI number
- 1366575417
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MD PH.D MPAS
- Sex
- Male
- Sole proprietor
- No
- License
- 0110840602 (VA)
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
19 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
407 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 268 | $110 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 57 | $111 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 54 | $9 |
| Administration of Influenza Virus VaccineG0008 | 17 | $31 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 11 | $178 |
Typical Medicare-allowed amounts for these services range $9–$178 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 144 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 556 | 192 |
| Amlodipine Besylate | 464 | 157 |
| Losartan Potassium | 294 | 99 |
| Omeprazole | 230 | 82 |
| Gabapentin | 225 | 75 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 209 | 73 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-14
- Last updated
- 2020-12-18
- Certified
- 2020-12-18
Frequently asked questions
- What is William Morrison's NPI number?
- William Morrison's National Provider Identifier (NPI) is 1366575417, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Morrison's specialty?
- William Morrison is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Morrison located?
- William Morrison's practice location on file with NPPES is 114 N Main St Ste 200, Suffolk, VA 23434-4564.
- What is William Morrison's phone number?
- The practice phone number listed in the NPPES registry for William Morrison is (757) 983-8600.
- Does William Morrison accept Medicare?
- William Morrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Morrison's NPI active?
- Yes — William Morrison's NPI (1366575417) is active in the NPPES registry as of the last update on 2020-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.