William Mcallister, MD
NPI 1740224278 · Psychiatry Physician · Pontiac, MI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mcallister, MD is a Psychiatry Physician provider in Pontiac, MI (NPI 1740224278).
Provider details
- NPI number
- 1740224278
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301405620 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
376 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 103 | $67 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 92 | $98 |
| Psychotherapy, 45 Minutes90834 | 52 | $89 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 44 | $71 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 34 | $78 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lamotrigine | 256 | 49 |
| Clonazepam | 214 | 33 |
| Alprazolam | 213 | 33 |
| Quetiapine Fumarate | 169 | 27 |
| Bupropion Hclbrand: Bupropion Xl | 164 | 29 |
| Gabapentin | 139 | 29 |
| Sertraline Hcl | 131 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-15
- Last updated
- 2016-10-11
Frequently asked questions
- What is William Mcallister's NPI number?
- William Mcallister's National Provider Identifier (NPI) is 1740224278, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mcallister's specialty?
- William Mcallister is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Mcallister located?
- William Mcallister's practice location on file with NPPES is 35 W Huron St, Pontiac, MI 48342-2120.
- What is William Mcallister's phone number?
- The practice phone number listed in the NPPES registry for William Mcallister is (248) 745-4900.
- Does William Mcallister accept Medicare?
- William Mcallister is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mcallister's NPI active?
- Yes — William Mcallister's NPI (1740224278) is active in the NPPES registry as of the last update on 2016-10-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.