NPIMap

Individual provider Active NPI

Gregory Lee Riley II, MD

  • Hospitalist Physician
  • New York, NY
National Provider Identifier
1649968116
Registry record updated Jul 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
341499 Issued in NY
Practice address
550 1St Ave
New York, NY 10016-6402
Phone
(212) 263-5506
NPI assigned
Apr 24, 2023
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 11, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X 13-3971298 NY
Hospitalist Physician 208M00000X 341499 NY Primary
Student in an Organized Health Care Education/Training Program 390200000X NY

Addresses

Primary practice location

550 1St Ave
New York, NY 10016-6402

Mailing address

703 Forest Rd
West Haven, CT 06516-7932
Phone (203) 980-1724

Electronic endpoints 1

TypeEndpointUseAffiliation
CONNECT URL https://esmd.officeally.io:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service Other Bluemark LLC / Office Ally

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
I20260506001013 NY Practitioner - Hospitalist 7810465093 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hospitalist
Education
Other, 2023
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
New York UniversityGroup PAC ID 1355232422, 5,925 clinicians

Practice addresses (Care Compare)

111 Broadway
New York, NY 10006-1901
Phone (212) 263-9700

530 1St Ave
New York, NY 10016-6402
Phone (212) 263-7300

550 1St Ave
New York, NY 10016-6402
Phone (212) 263-7300

560 1St Ave
New York, NY 10016-6402
Phone (212) 263-7300

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
13-3971298NYMDStudent in an Organized Health Care Education/Training Program

Interoperability endpoints

  • Direct secure messaging: griley574323@nyumc.direct-ci.com

Organizations & group practices 1

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 7

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": "1682294400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783728000000",
    "number": "1649968116",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "703 FOREST RD",
            "city": "WEST HAVEN",
            "state": "CT",
            "postal_code": "065167932",
            "telephone_number": "203-980-1724"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "550 1ST AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100166402",
            "telephone_number": "212-263-5506"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RILEY",
        "first_name": "GREGORY",
        "middle_name": "LEE",
        "name_prefix": "Dr.",
        "name_suffix": "II",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-04-24",
        "last_updated": "2026-07-11",
        "certification_date": "2026-07-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NY",
            "license": "13-3971298",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NY",
            "license": "341499",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NY",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.officeally.io:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.2019.3",
            "affiliationName": "Bluemark LLC / Office Ally",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "address_1": "1300 SE Cardinal Ct Ste 190",
            "city": "Vancouver",
            "state": "WA",
            "country_code": "US",
            "postal_code": "986839683",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.