Newton Wellesley Primary Care P C
NPI 1003911579 · Internal Medicine Physician · Wellesley, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Newton Wellesley Primary Care P C is a Internal Medicine Physician organization in Wellesley, MA (NPI 1003911579).
Provider details
- NPI number
- 1003911579
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Holgerson, President(781) 235-1224
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
- 2006-09-13
- Last updated
- 2017-03-09
Frequently asked questions
- What is Newton Wellesley Primary Care P C's NPI number?
- Newton Wellesley Primary Care P C's National Provider Identifier (NPI) is 1003911579, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Newton Wellesley Primary Care P C?
- Newton Wellesley Primary Care P C is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Newton Wellesley Primary Care P C located?
- Newton Wellesley Primary Care P C's practice location on file with NPPES is 40 Walnut St, Wellesley, MA 02481-2173.
- What is Newton Wellesley Primary Care P C's phone number?
- The practice phone number listed in the NPPES registry for Newton Wellesley Primary Care P C is (781) 943-3000.
- Does Newton Wellesley Primary Care P C accept Medicare?
- Newton Wellesley Primary Care P C is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Newton Wellesley Primary Care P C?
- The authorized official listed on Newton Wellesley Primary Care P C's NPPES record is William Holgerson, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Newton Wellesley Primary Care P C's NPI active?
- Yes — Newton Wellesley Primary Care P C's NPI (1003911579) is active in the NPPES registry as of the last update on 2017-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.