William Cullen, MD
NPI 1679531552 · Hospitalist Physician · Biddeford, ME
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Cullen, MD is a Hospitalist Physician provider in Biddeford, ME (NPI 1679531552).
Provider details
- NPI number
- 1679531552
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD22414 (ME)
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
180 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 121 | $79 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 46 | $116 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 13 | $120 |
Typical Medicare-allowed amounts for these services range $79–$120 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 55 | 34 |
| Amlodipine Besylate | 31 | 20 |
| Omeprazole | 23 | — |
| Ringer'S Solution,lactatedbrand: Lactated Ringers | 18 | — |
| Lisinopril | 18 | 15 |
| Metoprolol Succinate | 18 | 12 |
| Apixaban |
Practice location
Mailing address
Additional practice locations (2)
- 22 Bramhall StPortland, ME 04102-3134Phone: (207) 662-4618Fax: (207) 662-6254
- 25 June StSanford, ME 04073-2621Phone: (207) 324-4310
Registry dates
- Enumerated
- 2006-05-02
- Last updated
- 2025-07-15
- Certified
- 2025-07-15
Frequently asked questions
- What is William Cullen's NPI number?
- William Cullen's National Provider Identifier (NPI) is 1679531552, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Cullen's specialty?
- William Cullen is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is William Cullen located?
- William Cullen's practice location on file with NPPES is 1 Medical Center Dr, Biddeford, ME 04005-9422.
- What is William Cullen's phone number?
- The practice phone number listed in the NPPES registry for William Cullen is (207) 283-7937.
- Does William Cullen accept Medicare?
- William Cullen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Cullen's NPI active?
- Yes — William Cullen's NPI (1679531552) is active in the NPPES registry as of the last update on 2025-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.