Individual provider Active NPI

Krithika Namasivayam

  • Critical Care Medicine (Internal Medicine) Physician
  • Rahway, NJ
National Provider Identifier
1598226318
Registry record updated May 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X
License
25MA12320700 Issued in NJ
Practice address
865 Stone St
Rahway, NJ 07065-2742
Phone
(732) 381-4200
NPI assigned
Mar 26, 2019
Last updated
May 28, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 28, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pulmonary Disease Physician 207RP1001X 25MA12320700 NJ
Critical Care Medicine (Internal Medicine) Physician 207RC0200X 25MA12320700 NJ Primary

Addresses

Primary practice location

865 Stone St
Rahway, NJ 07065-2742

Mailing address

1727 Essex St Apt 504
Rahway, NJ 07065-5064
Phone (732) 381-4200

Other practice location 1

1 Robert Wood Johnson Pl
New Brunswick, NJ 08901-1928
Phone (732) 828-3000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NJ
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
I20251231000126 NJ Practitioner - Internal Medicine 5193211035 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Rwjbh Observation Associates LLCGroup PAC ID 5193137503, 995 clinicians

Practice addresses (Care Compare)

865 Stone St
Rahway, NJ 07065-2742
Phone (732) 381-4200

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
25MA12320700NJMDPulmonary Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Rwjbh Observation Associates LLC CurrentSince Oct 18, 2025 Accepting new patients
Rwjbh Emergency Medicine Associates, LLC CurrentSince Oct 18, 2025 Accepting new patients

Locations

225 Williamson St
Elizabeth, NJ 07202
Phone (908) 994-5204

600 River Ave
Lakewood, NJ 08701
Phone (732) 363-1900

1 Rwj Pl
New Brunswick, NJ 08901
Phone (732) 235-7887

865 Stone St
Rahway, NJ 07065
Phone (732) 381-4000

110 Rehill Ave
Somerville, NJ 08876
Phone (908) 429-5833

1 Hamilton Health Pl
Trenton, NJ 08690
Phone (609) 584-6763

Organizations & group practices 2

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1553558400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748390400000",
    "number": "1598226318",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1727 ESSEX ST APT 504",
            "city": "RAHWAY",
            "state": "NJ",
            "postal_code": "070655064",
            "telephone_number": "732-381-4200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "865 STONE ST",
            "city": "RAHWAY",
            "state": "NJ",
            "postal_code": "070652742",
            "telephone_number": "732-381-4200"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Robert Wood Johnson Pl",
            "address_purpose": "LOCATION",
            "city": "New Brunswick",
            "state": "NJ",
            "postal_code": "089011928",
            "country_code": "US",
            "telephone_number": "732-828-3000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NAMASIVAYAM",
        "first_name": "KRITHIKA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-26",
        "last_updated": "2025-05-28",
        "certification_date": "2025-05-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "NJ",
            "license": "25MA12320700",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "NJ",
            "license": "25MA12320700",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Rahway, NJ

Sources for this page

Verify at the official NPI Registry.