Organization Active NPI

Peter Y Chang MD Facg LLC

  • Gastroenterology Physician
  • Nanuet, NY
National Provider Identifier
1881787703
Registry record updated Jul 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
171437 Issued in NY
Legal business name
PETER Y CHANG MD FACG LLC
Practice address
55 Old Turnpike Road
Suite 605
Nanuet, NY 10954
Phone
(845) 623-8400
Fax
(845) 623-2451
NPI assigned
Oct 2, 2006
Last updated
Jul 9, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jul 9, 2026

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

Authorized official

Name
Claudia L ChangNPI 1528067964
Title
Administrator
Phone
(845) 623-8400

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 171437 NY Primary

Addresses

Primary practice location

55 Old Turnpike Road
Suite 605
Nanuet, NY 10954

Mailing address

55 Old Turnpike Rd Ste 605
Nanuet, NY 10954-2454
Phone (845) 623-8400

Other identifiers 1

IdentifierTypeStateIssuer
01632535MedicaidNY

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20040322001839 NY Part B Supplier - Clinic/Group Practice 9234020082 Receives reassigned benefits from 1 practitioner
Practice locations: Nanuet, NY

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
33D0996147Peter Y Chang MD PLLC55 Old Turnpike Road, Suite 605, Nanuet, NY 10954Certificate of waiverFeb 10, 2028

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1159747200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1783555200000",
    "number": "1881787703",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 OLD TURNPIKE RD STE 605",
            "city": "NANUET",
            "state": "NY",
            "postal_code": "109542454",
            "telephone_number": "845-623-8400",
            "fax_number": "845-623-2451"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 OLD TURNPIKE ROAD",
            "address_2": "SUITE 605",
            "city": "NANUET",
            "state": "NY",
            "postal_code": "10954",
            "telephone_number": "845-623-8400",
            "fax_number": "845-623-2451"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "PETER Y CHANG MD FACG LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-10-02",
        "last_updated": "2026-07-09",
        "certification_date": "2026-07-09",
        "status": "A",
        "authorized_official_last_name": "CHANG",
        "authorized_official_first_name": "CLAUDIA",
        "authorized_official_middle_name": "L",
        "authorized_official_title_or_position": "ADMINISTRATOR",
        "authorized_official_telephone_number": "845-623-8400"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NY",
            "license": "171437",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01632535",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Nanuet, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 9, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.