What is Alyssa Hennessy's NPI number?

Alyssa Hennessy's National Provider Identifier (NPI) is 1346098498, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Alyssa Hennessy's specialty?

Alyssa Hennessy is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).

Where is Alyssa Hennessy located?

Alyssa Hennessy's practice location on file with NPPES is 400 Doansburg Rd, Brewster, NY 10509-5902.

What is Alyssa Hennessy's phone number?

The practice phone number listed in the NPPES registry for Alyssa Hennessy is (845) 279-2995.

Is Alyssa Hennessy's NPI active?

Yes — Alyssa Hennessy's NPI (1346098498) is active in the NPPES registry as of the last update on 2026-01-21.

IndividualActive

Alyssa Hennessy, MSW

NPI 1346098498 · Specialist · Brewster, NY

Alyssa Hennessy, MSW is a Specialist provider in Brewster, NY (NPI 1346098498).

Provider details

NPI number: 1346098498
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Credential: MSW
Sex: Female
Sole proprietor: No

Specialties & taxonomies

SpecialistPrimary174400000X
Other Service Providers
Social Worker104100000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(50/100 index)

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

Registry tenure38% of score
2 yrs in NPPES registry
Profile completeness38% of score
83% 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

400 Doansburg Rd

Brewster, NY 10509-5902

Phone: (845) 279-2995

Street-level locationGet directions

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Mailing address