NPIMap

Organization Active NPI

Health Services of Northern New York

  • Home Health Agency
  • Potsdam, NY
National Provider Identifier
1952407033
Registry record updated May 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Home Health AgencyTaxonomy code 251E00000X
Legal business name
HEALTH SERVICES OF NORTHERN NEW YORK
Practice address
56 Market St
Potsdam, NY 13676-1747
Phone
(315) 265-4065
Fax
(315) 265-0012
NPI assigned
Sep 15, 2006
Last updated
May 20, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on May 20, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Mr. Matthew O'Bryan
Title
Administrator
Phone
(315) 265-4065

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Home Health Agency 251E00000X Primary

Addresses

Primary practice location

56 Market St
Potsdam, NY 13676-1747

Mailing address

56 Market St
Potsdam, NY 13676-1747
Phone (315) 265-4065

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20061117000462 NY Part A Provider - Home Health Agency 0941208391 Practice locations: Potsdam, NY

NPI to CCN mapping 1

The Medicare certification numbers (CCNs) connected to NPI 1952407033. Details of each certification follow.

Home health agency certification: CCN 337256

Legal name
HEALTH SERVICES OF NORTHERN NEW YORK, INC.
Certification status
Active
Provider type (POS)
Home health agency
Participating since
Sep 28, 1988
Last certification
Mar 13, 2019
Ownership / control type
Proprietary
Organization structure
CorporationProprietary
Incorporated
Aug 23, 1985 in NY
Enrollment address
56 Market St
Potsdam, NY 13676-1747

Care Compare: Home health agency

Medicare Care Compare
Listed as
Health Services of Northern New York Inc ChhaCCN 337256 · All quality measures
Overall star rating
2 of 5
Ownership
Proprietary
Certified
Sep 28, 1988
Medicare certification status
ActiveFrom the Provider of Services file
Services
Nursing, Medical social, Home health aide, Physical therapy, Speech pathology, Occupational therapy

National Provider Directory

National Provider Directory

Locations

56 Market St
Potsdam, NY 13676
Phone (315) 265-4065

Ownership & related parties

All disclosed owners & managing parties 3

As disclosed on the Medicare enrollment (CMS All Owners files). Individuals include officers, directors and managing employees, who may not hold ownership.

NameRoleSinceShare
Daniel M Hamister Individual Corporate DirectorChairman and Ceo Dec 7, 2011
Mark Hamister Individual 5% Or Greater Direct Ownership Interest Nov 30, 1993 99.9%
Matthew Obryan Individual W-2 Managing EmployeeAd; Mar 20, 2012

Practitioners & affiliated clinicians

Practitioners 108

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 108

Affiliated clinicians 46

Clinicians who list this facility as an affiliation in Medicare Care Compare.

View all 46

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1158278400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1779235200000",
    "number": "1952407033",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "56 MARKET ST",
            "city": "POTSDAM",
            "state": "NY",
            "postal_code": "136761747",
            "telephone_number": "315-265-4065",
            "fax_number": "315-265-0012"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "56 MARKET ST",
            "city": "POTSDAM",
            "state": "NY",
            "postal_code": "136761747",
            "telephone_number": "315-265-4065",
            "fax_number": "315-265-0012"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "HEALTH SERVICES OF NORTHERN NEW YORK",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-09-15",
        "last_updated": "2026-05-20",
        "certification_date": "2026-05-20",
        "status": "A",
        "authorized_official_last_name": "O'BRYAN",
        "authorized_official_first_name": "MATTHEW",
        "authorized_official_title_or_position": "ADMINISTRATOR",
        "authorized_official_telephone_number": "315-265-4065",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "251E00000X",
            "taxonomy_group": "",
            "desc": "Home Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Potsdam, NY

Sources for this page

Verify at the official NPI Registry.