Ya Ju Chang, MD

Primary specialty

Rheumatology PhysicianTaxonomy code 207RR0500X

License

207546 Issued in NY

Practice address

41 Elizabeth Street
Suite 203
New York, NY 10013-4637

Phone

(212) 334-9591

Fax

(212) 334-9598

NPI assigned

Nov 22, 2005

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in NY

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Rheumatology

Education

Other, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H1722

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Global Medical Associates, PLLC

  • Medical Specialty Clinic/Center
  • New York, NY
  • NPI 1437346095
  Medicare reassignment NPD Authorized official
• Icahn School of Medicine at Mount Sinai

  • Rheumatology Physician
  • New York, NY
  • NPI 1043571086
  Medicare reassignment NPD
• Icahn School of Medicine at Mount Sinai

  • Eyewear Supplier
  • New York, NY
  • NPI 1760227466
  NPD
• Beth Israel Medical Center

  • Internal Medicine Physician
  • New York, NY
  • NPI 1861457202

  Rheumatology

  NPD (past)
• Bimc Faculty Practice

  • Neurology Physician
  • New York, NY
  • NPI 1891848461
  NPD (past)

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

{
    "created_epoch": "1132617600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744675200000",
    "number": "1801879119",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "41 ELIZABETH STREET",
            "address_2": "SUITE 203",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100134637",
            "telephone_number": "212-334-9591",
            "fax_number": "212-334-9598"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "41 ELIZABETH STREET",
            "address_2": "SUITE 203",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100134637",
            "telephone_number": "212-334-9591",
            "fax_number": "212-334-9598"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "YA JU",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-11-22",
        "last_updated": "2025-04-15",
        "certification_date": "2025-04-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "NY",
            "license": "207546",
            "primary": false
        },
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "NY",
            "license": "207546",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01946758",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Wellington Chang
• Wen CHI Chang, PHARM. D.
• Wendy Angelica Chang, M.A.
• Woo Sung (Jimmy) Chang, DDS
• Xian Chang, P.T.
• Yi-Hui Chang, LCAT
• Yong-Jin Michael Chang, DDS
• Young Jin Chang, D.P.T.
• Yu Wei Chang, CHIROPRACTOR
• Yu-Chuan Chang

• Rheumatology Physician in New York, NY
• Providers in New York, NY by specialty
• Rheumatology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 15, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.