William Stephenson, MD
NPI 1003985714 · Pediatrics Physician · Rockport, ME
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Stephenson, MD is a Pediatrics Physician provider in Rockport, ME (NPI 1003985714).
Provider details
- NPI number
- 1003985714
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD15860 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 9 Fahy StBelfast, ME 04915-6028Phone: (207) 505-3600Fax: (207) 553-8364
Registry dates
- Enumerated
- 2006-11-07
- Last updated
- 2025-01-02
- Certified
- 2025-01-02
Frequently asked questions
- What is William Stephenson's NPI number?
- William Stephenson's National Provider Identifier (NPI) is 1003985714, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Stephenson's specialty?
- William Stephenson is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is William Stephenson located?
- William Stephenson's practice location on file with NPPES is 15 Anchor Dr Ste 103, Rockport, ME 04856-3847.
- What is William Stephenson's phone number?
- The practice phone number listed in the NPPES registry for William Stephenson is (207) 301-5600.
- Does William Stephenson accept Medicare?
- William Stephenson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Stephenson's NPI active?
- Yes — William Stephenson's NPI (1003985714) is active in the NPPES registry as of the last update on 2025-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.