Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ejo John, MD

Nephrology Physician in Trenton, NJ · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1639550841

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Registry record

Entity type Individual (Type 1)

Name Dr. Ejo John

Credential MD

Sex Male

Practice address 40 Fuld St Ste 305, Trenton, NJ, 08638

Phone (609) 394-6338

Enumeration date Jun 12, 2015

Last updated in NPPES Jul 2, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MT208374 (PA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 17896 (NV) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 25MA11668600 (NJ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1639550841 active?

Yes, as of the latest NPPES snapshot, NPI 1639550841 is active (record last updated 2025-07-02).

How do I verify Ejo John's NPI record?

Cross-check NPI 1639550841 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Edward Walton Family Nurse Practitioner · Trenton, NJ NPI 1366763336 Noha Ghusson Infectious Disease Physician · Trenton, NJ NPI 1902225683 Bushra Saleem Nephrology Physician · Trenton, NJ NPI 1891182382 Amber Jezierski Acute Care Nurse Practitioner · Trenton, NJ NPI 1598116154 Georgy Zarkua Infectious Disease Physician · Trenton, NJ NPI 1679008494 Devon Verity Nurse Practitioner · Trenton, NJ NPI 1629685839 Alison Panno Critical Care Medicine Nurse Practitioner · Trenton, NJ NPI 1093385395

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-02.