William Brewster, MD
NPI 1811057581 · Internal Medicine Physician · Somersworth, NH
William Brewster, MD is a Internal Medicine Physician provider in Somersworth, NH (NPI 1811057581).
Provider details
- NPI number
- 1811057581
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- NH7537 (NH)
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
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
- 2006-12-11
- Last updated
- 2010-06-29
Frequently asked questions
- What is William Brewster's NPI number?
- William Brewster's National Provider Identifier (NPI) is 1811057581, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Brewster's specialty?
- William Brewster is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Brewster located?
- William Brewster's practice location on file with NPPES is 396 High Street, Somersworth, NH 03878.
- What is William Brewster's phone number?
- The practice phone number listed in the NPPES registry for William Brewster is (603) 692-6066.
- Is William Brewster's NPI active?
- Yes — William Brewster's NPI (1811057581) is active in the NPPES registry as of the last update on 2010-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.