What is Sarah Lusk's NPI number?

Sarah Lusk's National Provider Identifier (NPI) is 1639109788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sarah Lusk's specialty?

Sarah Lusk is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).

Where is Sarah Lusk located?

Sarah Lusk's practice location on file with NPPES is 20 Willard St, Cambridge, MA 02138-4861.

What is Sarah Lusk's phone number?

The practice phone number listed in the NPPES registry for Sarah Lusk is (617) 999-8078.

Is Sarah Lusk's NPI active?

Yes — Sarah Lusk's NPI (1639109788) is active in the NPPES registry as of the last update on 2025-05-13.

IndividualActive

Sarah Lusk, PH.D.

NPI 1639109788 · Psychologist · Cambridge, MA

Sarah Lusk, PH.D. is a Psychologist provider in Cambridge, MA (NPI 1639109788).

Provider details

NPI number: 1639109788
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PH.D.
Sex: Female
Sole proprietor: Yes
License: 6404 (MA)

Specialties & taxonomies

PsychologistPrimary103T00000XLicense 6404 (MA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(91/100 index)

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

20 Willard St

Cambridge, MA 02138-4861

Phone: (617) 999-8078

Fax: (888) 382-5041

Street-level locationGet directions

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Mailing address