William Logan, M.D.
NPI 1588603682 · Geriatric Medicine (Internal Medicine) Physician · Laconia, NH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Logan, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider in Laconia, NH (NPI 1588603682).
Provider details
- NPI number
- 1588603682
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 23138 (SC)
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
20 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
Mailing address
Registry dates
- Enumerated
- 2006-06-05
- Last updated
- 2025-06-25
- Certified
- 2025-06-25
Frequently asked questions
- What is William Logan's NPI number?
- William Logan's National Provider Identifier (NPI) is 1588603682, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Logan's specialty?
- William Logan is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William Logan located?
- William Logan's practice location on file with NPPES is 724 N Main St, Laconia, NH 03246-2742.
- What is William Logan's phone number?
- The practice phone number listed in the NPPES registry for William Logan is (603) 524-9201.
- Does William Logan accept Medicare?
- William Logan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Logan's NPI active?
- Yes — William Logan's NPI (1588603682) is active in the NPPES registry as of the last update on 2025-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.