OrganizationActive
William B Stephenson M.D.
NPI 1558699579 · Pediatrics Physician · Rockport, ME
William B Stephenson M.D. is a Pediatrics Physician organization in Rockport, ME (NPI 1558699579).
Provider details
- NPI number
- 1558699579
- Entity type
- Organization
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Stephenson, Owner(207) 596-2433
- License
- 015860 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
731 Commercial St
Rockport, ME 04856-4254
Phone: (207) 596-2433
Fax: (207) 596-2435
Street-level locationGet directions
Mailing address
731 Commercial St
Rockport, ME 04856-4254
Registry dates
- Enumerated
- 2009-12-02
- Last updated
- 2009-12-02
Frequently asked questions
- What is William B Stephenson M.D.'s NPI number?
- William B Stephenson M.D.'s National Provider Identifier (NPI) is 1558699579, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William B Stephenson M.D.?
- William B Stephenson M.D. is classified in the NPPES registry as Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is William B Stephenson M.D. located?
- William B Stephenson M.D.'s practice location on file with NPPES is 731 Commercial St, Rockport, ME 04856-4254.
- What is William B Stephenson M.D.'s phone number?
- The practice phone number listed in the NPPES registry for William B Stephenson M.D. is (207) 596-2433.
- Who is the authorized official for William B Stephenson M.D.?
- The authorized official listed on William B Stephenson M.D.'s NPPES record is William Stephenson, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William B Stephenson M.D.'s NPI active?
- Yes — William B Stephenson M.D.'s NPI (1558699579) is active in the NPPES registry as of the last update on 2009-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.