DR. EJO JOHN MD
NPI 1639550841
Internal Medicine - Nephrology in Trenton, NJ
About Dr. Ejo John Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. EJO JOHN MD (NPI 1639550841) is an individual nephrology provider in Trenton, New Jersey, licensed in New Jersey (25MA11668600) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with Capital Health Medical Center - Hopewell, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 2
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
Dr. Ejo John Md 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 Ejo John reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Trenton, NJ 08638
- Reassigned Medicare billing, New Jersey enrollment
- 581 clinicians in this Medicare group
Henderson, NV 89074
- Reassigned Medicare billing, Nevada enrollment
- 319 clinicians in this Medicare group
Las Vegas, NV 89128
- Reassigned Medicare billing, Nevada enrollment
- 156 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Capital Health Medical Center - Hopewell
Acute Care Hospitals · Pennington, NJCapital Health Regional Medical Center
Acute Care Hospitals · Trenton, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08638 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TRENTON, NJ 08638
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 Ejo John's NPI number?
The NPI number for Ejo John is 1639550841. It was assigned to this individual provider in the NPPES registry on June 12, 2015. The provider is also known as Ejo Mannaparambil John.
Where is Ejo John located?
Ejo John practices at 40 Fuld St Ste 305, Trenton, NJ 08638. The listed phone number is (609) 394-6338.
What is Ejo John's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Ejo John enrolled in Medicare?
Yes. Ejo John 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 Ejo John's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ejo John reassigns Medicare benefits to 3 organizations: Capital Health Medical Group (Trenton, NJ), Platinum Hospitalists LLP (Henderson, NV) and Nevada Acute Medical Services-Scherr 1 PC (Las Vegas, NV). 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 Ejo John's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ejo John accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Ejo John 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 Ejo John affiliated with any hospitals?
According to CMS data, Ejo John is affiliated with Capital Health Medical Center - Hopewell and Capital Health Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Ejo John was last updated on July 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Ejo John, MD · NPI 1639550841
Nephrology physician in Trenton, New Jersey. Individual provider, active in the CMS NPPES registry since June 12, 2015.
## Identity
- **NPI:** 1639550841 (Entity type: Individual)
- **Enumerated:** June 12, 2015
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 25MA11668600 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 40 FULD ST STE 305, Trenton, NJ 08638-5247
- **Phone:** (609) 394-6338
## 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): Capital Health Medical Group (NPI 1437516887, Trenton, NJ); Platinum Hospitalists LLP (NPI 1437948726, Henderson, NV); Nevada Acute Medical Services-Scherr 1 PC (NPI 1992244438, Las Vegas, NV) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** July 2, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1639550841) · Data from the CMS NPPES public registry.