Active NPI
Peter Y Chang MD Facg LLC
- Gastroenterology Physician
- Nanuet, NY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- 171437
- 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, 2026
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Claudia L Chang
- 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) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 01632535 | Medicaid | NY |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY
Enrollment records 1
Laboratory certificates & supplier records
Derived by NPIMapThese CMS records do not include an NPI. They are shown because their name and street address match this provider’s.
CLIA laboratory certificates
| CLIA number | Laboratory | Certificate | Expires |
|---|---|---|---|
| 33D0996147 | Peter Y Chang MD PLLC | Certificate of waiver | Feb 10, 2028 |
National Provider Directory
National Provider DirectoryPractitioners & 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.
-
- Gastroenterology Physician
- Nanuet, NY
- NPI 1366426264
-
- Physician Assistant
- Bronx, NY
- NPI 1528067964
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.