What is Mark Sisti's NPI number?

Mark Sisti's National Provider Identifier (NPI) is 1801937800, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Sisti's specialty?

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

Where is Mark Sisti located?

Mark Sisti's practice location on file with NPPES is 32 Arbor Ridge Ln, South Setauket, NY 11720-1405.

What is Mark Sisti's phone number?

The practice phone number listed in the NPPES registry for Mark Sisti is (631) 696-2896.

Is Mark Sisti's NPI active?

Yes — Mark Sisti's NPI (1801937800) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Mark Sisti, PH.D.

NPI 1801937800 · Psychologist · South Setauket, NY

Mark Sisti, PH.D. is a Psychologist provider in South Setauket, NY (NPI 1801937800).

Provider details

NPI number: 1801937800
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PH.D.
Sex: Male
Sole proprietor: Yes
License: 011538 (NY)

Specialties & taxonomies

PsychologistPrimary103T00000XLicense 011538 (NY)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(90/100 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

32 Arbor Ridge Ln

South Setauket, NY 11720-1405

Phone: (631) 696-2896

Fax: (631) 696-2896

Street-level locationGet directions

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Mailing address