Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ritamarie I John, CDNP DR NP
Nurse Practitioner in Elizabeth, NJ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831123991
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Registry record
Entity type Individual (Type 1)
Name Dr. Ritamarie I John
Credential CDNP DR NP
Sex Female
Practice address 435 Elmora Ave, Elizabeth, NJ, 07208
Phone (908) 659-9200
Enumeration date Jul 11, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NN04791200 (NJ) Primary
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.
Frequently asked questions
Is NPI 1831123991 active?
Yes, as of the latest NPPES snapshot, NPI 1831123991 is active (record last updated 2007-07-08).
How do I verify Ritamarie John's NPI record?
Cross-check NPI 1831123991 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.