What is Matthew Libby's NPI number?

Matthew Libby's National Provider Identifier (NPI) is 1538421938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Matthew Libby's specialty?

Matthew Libby is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Matthew Libby located?

Matthew Libby's practice location on file with NPPES is 125 Underpass Rd, Brewster, MA 02631-1810.

What is Matthew Libby's phone number?

The practice phone number listed in the NPPES registry for Matthew Libby is (508) 625-6963.

Is Matthew Libby's NPI active?

Yes — Matthew Libby's NPI (1538421938) is active in the NPPES registry as of the last update on 2026-01-13.

IndividualActive

Matthew Libby, DO

NPI 1538421938 · Family Medicine Physician · Brewster, MA

Matthew Libby, DO is a Family Medicine Physician provider in Brewster, MA (NPI 1538421938).

Provider details

NPI number: 1538421938
Entity type: Individual
Primary specialty: Family Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: DO
Sex: Male
Sole proprietor: No
License: 261744 (MA)

Specialties & taxonomies

Family Medicine PhysicianPrimary207Q00000XLicense 261744 (MA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(79/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
14 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

125 Underpass Rd

Brewster, MA 02631-1810

Phone: (508) 625-6963

Fax: (508) 526-9979

Street-level locationGet directions

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Mailing address