JANINE DENISE GRAYSON M.D.
NPI 1215036397
Emergency Medicine in Newark, NJ
About Janine Denise Grayson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JANINE DENISE GRAYSON M.D. (NPI 1215036397) is an individual emergency medicine provider in Newark, New Jersey, licensed in New Jersey (25MA07936500) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS, is affiliated with Robert Wood Johnson University Hospital At Rahway, and is a graduate of Howard University College Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Janine Denise Grayson M.d. 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
3Medicare enrollment records show Janine Grayson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Newark, NJ 07103
- Reassigned Medicare billing, New Jersey enrollment
- 149 clinicians in this Medicare group
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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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 07103 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.
NEWARK, NJ 07103
NEWARK, NJ 07103
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 Janine Grayson's NPI number?
The NPI number for Janine Grayson is 1215036397. It was assigned to this individual provider in the NPPES registry on September 22, 2006.
Where is Janine Grayson located?
Janine Grayson practices at 90 Bergen St ER Department, Newark, NJ 07103. The listed phone number is (973) 972-5128.
What is Janine Grayson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Janine Grayson enrolled in Medicare?
Yes. Janine Grayson 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 Janine Grayson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Janine Grayson reassigns Medicare benefits to 3 organizations: University Physician Associates Of New Jersey Inc (Newark, NJ), 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 Janine Grayson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Janine Grayson affiliated with any hospitals?
According to CMS data, Janine Grayson is affiliated with Robert Wood Johnson University Hospital At Rahway.
When was this NPI record last updated?
The NPPES record for Janine Grayson was last updated on February 22, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.
# Janine Denise Grayson, M.D. · NPI 1215036397
Emergency Medicine physician in Newark, New Jersey. Individual provider, active in the CMS NPPES registry since September 22, 2006.
## Identity
- **NPI:** 1215036397 (Entity type: Individual)
- **Enumerated:** September 22, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 25MA07936500 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 90 BERGEN ST, ER DEPARTMENT, Newark, NJ 07103-2425
- **Phone:** (973) 972-5128 · **Fax:** (973) 972-6646
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): University Physician Associates Of New Jersey Inc (NPI 1639189236, Newark, NJ); 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:** Howard University College Of Medicine, class of 2001
## Record status
- **NPPES last updated:** February 22, 2010
- **Other identifiers:** Medicare UPIN I49549 (NJ); Medicaid 0100927 (NJ); Medicare PIN 098458 (NJ)
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Source: [NPI Profile](https://npiprofile.com/npi/1215036397) · Data from the CMS NPPES public registry.