KRITHIKA NAMASIVAYAM
NPI 1598226318
Internal Medicine - Critical Care Medicine in Rahway, NJ
About Krithika Namasivayam NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KRITHIKA NAMASIVAYAM (NPI 1598226318) is an individual critical care medicine provider in Rahway, New Jersey, licensed in New Jersey (25MA12320700) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Robert Wood Johnson University Hospital At Rahway, and maintains a secondary practice location in New Brunswick.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Krithika Namasivayam is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Krithika Namasivayam reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Livingston, NJ 07039
- Reassigned Medicare billing, New Jersey enrollment
- 1,913 clinicians in this Medicare group
Somerset, NJ 08873
- Reassigned Medicare billing, New Jersey enrollment
- 1,557 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Robert Wood Johnson University Hospital At Rahway
Acute Care Hospitals · Rahway, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07065 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Krithika Namasivayam's NPI number?
The NPI number for Krithika Namasivayam is 1598226318. It was assigned to this individual provider in the NPPES registry on March 26, 2019.
Where is Krithika Namasivayam located?
Krithika Namasivayam practices at 865 Stone St, Rahway, NJ 07065. The listed phone number is (732) 381-4200.
What is Krithika Namasivayam's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Krithika Namasivayam enrolled in Medicare?
Yes. Krithika Namasivayam is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Krithika Namasivayam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Krithika Namasivayam reassigns Medicare benefits to 2 organizations: Rwjbh Observation Associates LLC (Livingston, NJ) and Rwjbh Emergency Medicine Associates, LLC (Somerset, NJ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Krithika Namasivayam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Krithika Namasivayam accept?
Health plans from Oscar Health list Krithika Namasivayam as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Krithika Namasivayam affiliated with any hospitals?
According to CMS data, Krithika Namasivayam is affiliated with Robert Wood Johnson University Hospital At Rahway.
When was this NPI record last updated?
The NPPES record for Krithika Namasivayam was last updated on May 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Krithika Namasivayam · NPI 1598226318
Critical Care Medicine physician in Rahway, New Jersey. Individual provider, active in the CMS NPPES registry since March 26, 2019.
## Identity
- **NPI:** 1598226318 (Entity type: Individual)
- **Enumerated:** March 26, 2019
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 25MA12320700 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 865 STONE ST, Rahway, NJ 07065-2742
- **Phone:** (732) 381-4200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Rwjbh Observation Associates LLC (NPI 1760095806, Livingston, NJ); Rwjbh Emergency Medicine Associates, LLC (NPI 1912510041, Somerset, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** May 28, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1598226318) · Data from the CMS NPPES public registry.