Nassau Psychiatric Services, P.C.
NPI 1104273762 · Mental Health Counselor · Uniondale, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nassau Psychiatric Services, P.C. is a Mental Health Counselor organization in Uniondale, NY (NPI 1104273762).
Provider details
- NPI number
- 1104273762
- Entity type
- Organization
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Martha Hyzak, Director(516) 280-9030
- License
- 243373 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Mailing address
Additional practice locations (1)
- 601 Franklin AveSuite 120Garden City, NY 11530-5795Phone: (516) 280-9030Fax: (516) 280-9029
Registry dates
- Enumerated
- 2016-05-24
- Last updated
- 2025-09-21
- Certified
- 2025-09-21
Frequently asked questions
- What is Nassau Psychiatric Services, P.C.'s NPI number?
- Nassau Psychiatric Services, P.C.'s National Provider Identifier (NPI) is 1104273762, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Nassau Psychiatric Services, P.C.?
- Nassau Psychiatric Services, P.C. is classified in the NPPES registry as Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Nassau Psychiatric Services, P.C. located?
- Nassau Psychiatric Services, P.C.'s practice location on file with NPPES is 626 Rxr Plz Ste 655, Uniondale, NY 11556-3829.
- What is Nassau Psychiatric Services, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Nassau Psychiatric Services, P.C. is (516) 280-9030.
- Does Nassau Psychiatric Services, P.C. accept Medicare?
- Nassau Psychiatric Services, P.C. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Nassau Psychiatric Services, P.C.?
- The authorized official listed on Nassau Psychiatric Services, P.C.'s NPPES record is Martha Hyzak, Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Nassau Psychiatric Services, P.C.'s NPI active?
- Yes — Nassau Psychiatric Services, P.C.'s NPI (1104273762) is active in the NPPES registry as of the last update on 2025-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.