What is Mark Nachmias's NPI number?

Mark Nachmias's National Provider Identifier (NPI) is 1699875344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Nachmias's specialty?

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

Where is Mark Nachmias located?

Mark Nachmias's practice location on file with NPPES is 3915 Hylan Blvd, Staten Island, NY 10308-3425.

What is Mark Nachmias's phone number?

The practice phone number listed in the NPPES registry for Mark Nachmias is (718) 948-7800.

Is Mark Nachmias's NPI active?

Yes — Mark Nachmias's NPI (1699875344) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Mark Nachmias, PHD

NPI 1699875344 · Psychologist · Staten Island, NY

Mark Nachmias, PHD is a Psychologist provider in Staten Island, NY (NPI 1699875344).

Provider details

NPI number: 1699875344
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PHD
Sex: Male
Sole proprietor: No
License: 86331 (NY)

Specialties & taxonomies

PsychologistPrimary103T00000XLicense 86331 (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

3915 Hylan Blvd

Staten Island, NY 10308-3425

Phone: (718) 948-7800

Fax: (718) 948-7800

Street-level locationGet directions

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Mailing address