Rex A Tai, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

329528 Issued in NY

Practice address

1752 Park Ave
New York, NY 10035-2811

Phone

(646) 686-0334

NPI assigned

Mar 25, 2021

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: rtai4426684@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

  dba Gouverneur Healthcare Services

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

  Single Specialty

  Medicare reassignment NPD
• New York City Health and Hospitals Corporation

  dba Elmhurst Hospital Center

  • General Acute Care Hospital
  • Elmhurst, NY
  • NPI 1063426377

  Single Specialty

  NPD
• New York City Health and Hospitals Corporation

  dba Henry J. Carter Specialty Hospital

  • Clinic/Center
  • New York, NY
  • NPI 1538943469

  Single Specialty

  NPD
• New York City Health and Hospitals Corporation

  dba Henry J. Carter Specialty Hospital

  • Long Term Care Hospital
  • New York, NY
  • NPI 1992713564

  Internal Medicine

  NPD (past)

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

{
    "created_epoch": "1616630400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768435200000",
    "number": "1811574908",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1752 PARK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100352811",
            "telephone_number": "646-686-0334"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1752 PARK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100352811",
            "telephone_number": "646-686-0334"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TAI",
        "first_name": "REX",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-03-25",
        "last_updated": "2026-01-15",
        "certification_date": "2026-01-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "329528",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hua-Hsin Tai
• Jonathan Tai, DDS
• Jung Tai, D.D.S.
• Kenny Tai, NP
• Natalie Hoh-Ying Tai
• Tak Yee Tania Tai, MD
• Tayler Tai
• Naomi Taicher, LCSW
• Noor Nicole Taied, DO
• Bertha Taillefer, MSW

• 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 Jan 15, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.