Perumal Thiyagarajan, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

294128 Issued in NY

Practice address

254 Easton Ave
New Brunswick, NJ 08901-1766

Phone

(732) 745-8600

NPI assigned

Nov 2, 2013

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

Specialty

Internal Medicine

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Nightwatch Medicine PLLCGroup PAC ID 4880051366, 8 clinicians

North Shore-Lij Medical PCGroup PAC ID 3375701568, 6,374 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• North Shore University Hospital Hospital, Manhasset, NY, CCN 330106
• Carillon Nursing and Rehabilitation Center Nursing home, Huntington, NY, CCN 335286
• Excel At Woodbury for Rehabilitation and Nursing, Nursing home, Woodbury, NY, CCN 335231

Merit-based Incentive Payment System (MIPS)

Final score

93.07 of 100Reported as apm

Quality

79.77

Promoting interoperability

88.77

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: pthiyagarajan1899225@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.

• Nightwatch Medicine PLLC

  • Internal Medicine Physician
  • Dix Hills, NY
  • NPI 1184321739
  Medicare reassignment Care Compare group NPD
• North Shore-Lij Medical PC

  • Urology Physician
  • Great Neck, NY
  • NPI 1053688572

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Perumal Raja Thiyagarajan MD Internal Medicine PLLC

  • Internal Medicine Physician
  • Melville, NY
  • NPI 1295694727
  Medicare reassignment NPD Authorized official
• Carillon Nursing and Rehabilitation Center LLC

  • Skilled Nursing Facility
  • Huntington, NY
  • NPI 1265429856
  NPD (past)
• North Shore University Hospital

  • General Acute Care Hospital
  • Manhasset, NY
  • NPI 1366459570
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Carillon Nursing and Rehabilitation Center LLC

  • Skilled Nursing Facility
  • Huntington, NY
  • NPI 1265429856

  Nursing home

  Care Compare affiliation
• Excel at Woodbury for Rehabilitation and Nursing LLC

  • Skilled Nursing Facility
  • Woodbury, NY
  • NPI 1376989376

  Nursing home

  Care Compare affiliation
• North Shore University Hospital

  • General Acute Care Hospital
  • Manhasset, NY
  • NPI 1366459570
  Care Compare affiliation

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

{
    "created_epoch": "1383350400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768867200000",
    "number": "1760811582",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "608 FOREST DR",
            "city": "SPRINGFIELD",
            "state": "NJ",
            "postal_code": "070814139",
            "telephone_number": "516-697-0624"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "254 EASTON AVE",
            "city": "NEW BRUNSWICK",
            "state": "NJ",
            "postal_code": "089011766",
            "telephone_number": "732-745-8600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THIYAGARAJAN",
        "first_name": "PERUMAL",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2013-11-02",
        "last_updated": "2026-01-20",
        "certification_date": "2026-01-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "294128",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sandra Denise Thebaud-Young, APRN-BC
• Dylan Robert Theiss
• Lisa Then, LAC, R-DMT
• Arunachalam Thenappan, MD
• Christina Theodorou Ross, MD
• Estherline Jesula Thoby, DO
• Andrew Thomas, MSN, APN-C
• Donna N. Thomas, APN
• Jessy Joykutty Thomas, M.D.
• Joel P. Thomas, MD

• Internal Medicine Physician in New Brunswick, NJ
• Providers in New Brunswick, NJ by specialty
• Internal Medicine Physician in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 20, 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.
• 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.