1. Home
  2. Directory
  3. New York
  4. Williston Park
  5. Psychologist
  6. NPI Profile

HARTMAN & HARTMAN PSYCHOLOGISTS, P. C.
NPI 1902158181
Psychologist - Clinical Child & Adolescent in Williston Park, NY

Active since October 11, 2012
99 HILLSIDE AVE, WILLISTON PARK, NY 11596(516) 745-2487(516) 294-4810 Get Directions Write a Review

NPPES record last updated: October 11, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Hartman & Hartman Psychologists, P. C. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HARTMAN & HARTMAN PSYCHOLOGISTS, P. C. (NPI 1902158181) is a healthcare organization registered as a clinical child & adolescent in Williston Park, New York and active in the NPI registry since October 2012. The organization lists Fredric Charles Hartman, Secretary, as its authorized official.

NPPES Registry Identity

NPI1902158181
Entity TypeOrganization
Primary Taxonomy103TC2200X
Legal Business NameHARTMAN & HARTMAN PSYCHOLOGISTS, P. C.
Location Address99 HILLSIDE AVEWilliston Park, NY 11596-2333
Mailing Address99 Hillside AveWilliston Park, NY 11596-2333 · (516) 745-2487 · Fax (516) 294-4810
Phone(516) 745-2487
Fax(516) 294-4810
Organization SubpartNo
Authorized OfficialFredric Charles HartmanSecretary · (516) 746-2487
Enumeration DateOctober 11, 2012
✔ NPI 1902158181 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Clinical Child & AdolescentBehavioral Health & Social Service Providers
Taxonomy Code103TC2200X
Definition
A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.
99 HILLSIDE AVE, Williston Park, NY 11596
Open in Google Maps ↗

Other Identifiers 1

Medicare PINV67791NY

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hartman & Hartman Psychologists, P. C. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Hartman & Hartman Psychologists, P. C., which bills Medicare for the services this clinician delivers.

Clinician (1)

Fredric Hartman, PH.D.
Clinical Psychologist
NPI 1053422824
436 WILLIS AVE 4
Williston Park, NY 11596
(516) 746-2487
✔ PECOS✔ Accepts Medicare0.1 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Hartman & Hartman Psychologists, P. C.'s NPI number?

The NPI number for Hartman & Hartman Psychologists, P. C. is 1902158181. It was assigned to this organization in the NPPES registry on October 11, 2012.

Where is Hartman & Hartman Psychologists, P. C. located?

Hartman & Hartman Psychologists, P. C. is located at 99 Hillside Ave, Williston Park, NY 11596. The listed phone number is (516) 745-2487.

What is Hartman & Hartman Psychologists, P. C.'s specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

Is Hartman & Hartman Psychologists, P. C. enrolled in Medicare?

Yes. Hartman & Hartman Psychologists, P. C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hartman & Hartman Psychologists, P. C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Hartman & Hartman Psychologists, P. C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Hartman & Hartman Psychologists, P. C. was last updated on October 11, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.