Aaron Chen, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

337468 Issued in NY

Practice address

227 Madison St
New York, NY 10002-7537

Phone

(212) 238-7000

NPI assigned

Apr 23, 2022

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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

Internal Medicine

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

New York City Health and Hospitals CorporationGroup PAC ID 4183535305, 543 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: achen2108855@nychhc.direct-ci.com

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.

• New York City Health and Hospitals Corporation

  • Clinic/Center
  • New York, NY
  • NPI 1548208127

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• New York City Health and Hospitals Corporation

  • Clinic/Center
  • Bronx, NY
  • NPI 1003824608

  Internal Medicine

  NPD
• New York City Health and Hospitals Corporation

  • Clinic/Center
  • New York, NY
  • NPI 1538943469
  NPD
• New York City Health and Hospitals Corporation

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1679587679

  Internal Medicine

  NPD (past)

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

{
    "created_epoch": "1650672000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751932800000",
    "number": "1831833102",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "227 MADISON ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100027537"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "227 MADISON ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100027537",
            "telephone_number": "212-238-7000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "550 1st Ave",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100166402",
            "country_code": "US",
            "telephone_number": "212-263-5506",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHEN",
        "first_name": "AARON",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-23",
        "last_updated": "2025-07-08",
        "certification_date": "2025-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "337468",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Xiao Xia Chen Mei
• Chen Midtown Dental Services PC
• Tina Chen Yan, MS,RDN, CDN
• Chen-Men East Broadway Dental Center LLP
• Jennifer Chen-Sumida, CRNA
• Aaron Z Chen, MD
• Abigail R Chen, M.D.
• Ah Kai Chen
• Ai-Mei Chen, PA
• Alexander Shon Chen, MD

• Internal Medicine Physician in New York, NY
• Providers in New York, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 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.