Individual provider Active NPI

Grace Hyun, MD

  • Specialist
  • New York, NY
National Provider Identifier
1699829630
Registry record updated Apr 12, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
SpecialistTaxonomy code 174400000X
License
223431 Issued in NY
Practice address
3959 Broadway
Suite 219
New York, NY 10032-1559
Phone
(212) 305-8510
NPI assigned
Jan 23, 2007
Last updated
Apr 12, 2021By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 12, 2021

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Specialist 174400000X 223431 NY Primary

Addresses

Primary practice location

3959 Broadway
Suite 219
New York, NY 10032-1559

Mailing address

3959 Broadway
Suite 219
New York, NY 10032-1559
Phone (212) 305-8510

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address ghyun217356@nyumc.direct-ci.com

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20050908000982 NY Practitioner - Urology 5799717807 Reassigns benefits to 4 organizations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Physician Affiliate Group of New York PC CurrentSince Oct 2, 2025 Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
New York University CurrentSince Sep 1, 2017 Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
New York University CurrentSince Sep 1, 2017 Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Jun 8, 2011 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Jun 8, 2011 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Jun 24, 2013 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Jun 24, 2013 Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients
Icahn School of Medicine at Mount Sinai Current Accepting new patients

Locations

2601 Ocean Pkwy
Brooklyn, NY 11235
Phone (718) 616-5354

7901 Broadway
Rm A119
Elmhurst, NY 11373
Phone (718) 334-4951

7901 Broadway
Rm A19
Elmhurst, NY 11373
Phone (718) 334-3380

7901 Broadway
Flushing, NY 11373
Phone (718) 334-2156

150 E 32nd St
New York, NY 10016
Phone (212) 263-8610

5 E 98th St
Fl 5
New York, NY 10029
Phone (212) 241-8234

506 Malcolm X Blvd
New York, NY 10037
Phone (212) 939-1000

638 Columbus Ave
New York, NY 10024
Phone (212) 241-2112

Networks

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

Interoperability endpoints

  • Direct secure messaging: ghyun217356@nyumc.direct-ci.com

Organizations & group practices 18

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

View all 18

NPI Registry JSON

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

{
    "created_epoch": "1169510400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1618185600000",
    "number": "1699829630",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3959 BROADWAY",
            "address_2": "SUITE 219",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100321559",
            "telephone_number": "212-305-8510"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3959 BROADWAY",
            "address_2": "SUITE 219",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100321559",
            "telephone_number": "212-305-8510"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HYUN",
        "first_name": "GRACE",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2007-01-23",
        "last_updated": "2021-04-12",
        "certification_date": "2021-04-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "NY",
            "license": "223431",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ghyun217356@nyumc.direct-ci.com",
            "affiliation": "N",
            "address_1": "3959 Broadway",
            "address_2": "SUITE 219",
            "city": "New York",
            "state": "NY",
            "country_code": "US",
            "postal_code": "100321559",
            "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.