NPIMap

Individual provider Active NPI

Gregory Chang, MD, MBA

  • Emergency Medical Services (Emergency Medicine) Physician
  • New York, NY
National Provider Identifier
1154940419
Registry record updated Mar 7, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medical Services (Emergency Medicine) PhysicianTaxonomy code 207PE0004X
License
326294-01 Issued in NY
Practice address
1275 York Ave
New York, NY 10065-6007
Phone
(718) 250-8000
NPI assigned
Apr 15, 2020
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 7, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X 326294-01 NY Primary

Addresses

Primary practice location

1275 York Ave
New York, NY 10065-6007

Mailing address

121 Dekalb Ave
Brooklyn, NY 11201-5425

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250512001025 NY Practitioner - Emergency Medicine 3173040375 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Memorial Urgent Care GroupGroup PAC ID 6507878675, 46 clinicians
Weill Medical College of CornellGroup PAC ID 6800709023, 2,023 clinicians

Practice addresses (Care Compare)

1275 York Ave
New York, NY 10065-6007
Phone (212) 639-7203

525 E 68TH St
Emergency Physicians Dept
New York, NY 10021-4870
Phone (646) 962-7300

Hospital & facility affiliations

  • Memorial Hospital for Cancer and Allied Diseases Hospital, New York, NY, CCN 330154
  • New York-Presbyterian Hospital Hospital, New York, NY, CCN 330101

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Master of Business Administration, Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
326294-01NYMDEmergency Medical Services (Emergency Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mskcc Regional Network CurrentSince May 12, 2025 Accepting new patients
Weill Medical College of Cornell CurrentSince Jan 1, 2026 Accepting new patients
Weill Medical College of Cornell Emergency Medical Services CurrentSince Jan 1, 2026 Accepting new patients
MSK Harrison CurrentSince May 12, 2025 Accepting new patients
MSK Nassau CurrentSince May 12, 2025 Accepting new patients
Memorial Urgent Care Group CurrentSince May 12, 2025 Accepting new patients

Locations

121 DeKalb Ave
Brooklyn, NY 11201
Phone (718) 250-6604

650 Commack Rd
Commack, NY 11725
Phone (631) 623-4000

170 William St
New York, NY 10038
Phone (212) 238-0100

525 E 68th St
New York, NY 10065
Phone (212) 746-2846

633 3rd Ave
Fl 4
New York, NY 10017
Phone (646) 227-3764

1275 York Ave
New York, NY 10065
Phone (212) 639-3813

1101 Hempstead Tpke
Uniondale, NY 11553
Phone (516) 559-1000

500 Westchester Ave
West Harrison, NY 10604
Phone (914) 367-7000

Networks

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

Organizations & group practices 7

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.

Hospital & facility affiliations 10

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1586908800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741305600000",
    "number": "1154940419",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "121 DEKALB AVE",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112015425"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1275 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656007",
            "telephone_number": "718-250-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "GREGORY",
        "name_prefix": "Dr.",
        "credential": "MD, MBA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-15",
        "last_updated": "2025-03-07",
        "certification_date": "2025-03-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207PE0004X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine, Emergency Medical Services",
            "state": "NY",
            "license": "326294-01",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.