NEWTON WELLESLEY PRIMARY CARE P C
NPI 1003911579
Internal Medicine in Wellesley, MA

Active since September 13, 2006CLIA Certified · 2 labs
40 WALNUT ST, WELLESLEY, MA 02481(781) 943-3000(781) 943-3001 Get Directions Write a Review

NPPES record last updated: March 9, 2017. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Newton Wellesley Primary Care P C NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NEWTON WELLESLEY PRIMARY CARE P C (NPI 1003911579) is a healthcare organization registered as an internal medicine in Wellesley, Massachusetts and active in the NPI registry since September 2006. The organization holds 2 active CLIA laboratory certificates and lists William B Holgerson, President, as its authorized official.

NPPES Registry Identity

NPI1003911579
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameNEWTON WELLESLEY PRIMARY CARE P C
Location Address40 WALNUT STWellesley, MA 02481-2173
Mailing Address40 Walnut StWellesley, MA 02481-2173 · (781) 943-3000 · Fax (781) 943-3001
Fax(781) 943-3001
Organization SubpartNo
Authorized OfficialWilliam B HolgersonPresident · (781) 235-1224
Enumeration DateSeptember 13, 2006
Last NPPES UpdateMarch 9, 2017
NPI 1003911579 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

40 WALNUT ST, Wellesley, MA 02481

Other Identifiers 4

OtherM16342MA · Blueshield Newton Grp#
Medicare PINM20124MA
Other9777644MA · Masshealth Group#
Other607309MA · Tufts Group #

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

CLIA Laboratory Certificates CMS CLIA 2

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 22D2108317

Newton Wellesley Primary Care PC · Wellesley, MA
Active · expires Feb 1, 2028
CLIA Number22D2108317
Laboratory TypePhysician Office
Certificate Effective DateFebruary 2, 2026
Certificate Expiration DateFebruary 1, 2028
Laboratory DirectorWilliam C. Liaw
Laboratory Phone(781) 943-3000
Laboratory LocationNewton Wellesley Primary Care PC40 Walnut St Ste 102, Wellesley, MA 02481
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 22D2028811

Newton Wellesley Primary Care · Wellesley, MA
Active · expires Aug 23, 2027
CLIA Number22D2028811
Laboratory TypePhysician Office
Certificate Effective DateAugust 24, 2025
Certificate Expiration DateAugust 23, 2027
Laboratory DirectorKathryn Deanzeris
Laboratory Phone(781) 235-1224
Laboratory LocationNewton Wellesley Primary Care40 Walnut Street Suite 201, Wellesley, MA 02481
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
40 WALNUT ST, SUITE 102
WELLESLEY, MA 02481

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Newton Wellesley Primary Care P C's NPI number?

The NPI number for Newton Wellesley Primary Care P C is 1003911579. It was assigned to this organization in the NPPES registry on September 13, 2006.

Where is Newton Wellesley Primary Care P C located?

Newton Wellesley Primary Care P C is located at 40 Walnut St, Wellesley, MA 02481. The listed phone number is (781) 943-3000.

What is Newton Wellesley Primary Care P C's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Does Newton Wellesley Primary Care P C hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Newton Wellesley Primary Care P C accept?

Health plans from Anthem Blue Cross and Blue Shield list Newton Wellesley Primary Care P C as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Newton Wellesley Primary Care P C was last updated on March 9, 2017. NPI Profile syncs with the weekly NPPES data releases published by CMS.