Perumal Raja Thiyagarajan MD Internal Medicine PLLC

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Legal business name

PERUMAL RAJA THIYAGARAJAN MD INTERNAL MEDICINE PLLC

Practice address

201 Old Country Rd Ste 170
Melville, NY 11747-2732

Phone

(631) 271-9151

NPI assigned

Jan 20, 2026

Last updated

May 6, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Mr. Perumal Thiyagarajan, MDNPI 1760811582

Title

Owner

Phone

(516) 800-5012

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

Enrollment records 1

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Perumal Thiyagarajan, M.D.

  • Internal Medicine Physician
  • New Brunswick, NJ
  • NPI 1760811582

  NY

  Medicare reassignment NPD Authorized official

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

{
    "created_epoch": "1768867200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1778025600000",
    "number": "1295694727",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "201 OLD COUNTRY RD STE 170",
            "city": "MELVILLE",
            "state": "NY",
            "postal_code": "117472732"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "201 OLD COUNTRY RD STE 170",
            "city": "MELVILLE",
            "state": "NY",
            "postal_code": "117472732",
            "telephone_number": "631-271-9151"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "PERUMAL RAJA THIYAGARAJAN MD INTERNAL MEDICINE PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-01-20",
        "last_updated": "2026-05-06",
        "certification_date": "2026-05-06",
        "status": "A",
        "authorized_official_last_name": "THIYAGARAJAN",
        "authorized_official_first_name": "PERUMAL",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "516-800-5012",
        "authorized_official_name_prefix": "Mr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Catherine Pernice
• Ella Perper
• Persaud Medical, PLLC
• Aretha Nanda Persaud-Mancusi, M.D.
• Kamiyah Person-Gunter
• Panagiotis Petrochilos
• Donna Marie Petrone
• Laurel Pettit, DPT
• Maurice L Pettway Jr.
• Cheyenne A Peyton

• Internal Medicine Physician in Melville, NY
• Providers in Melville, 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 May 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.