Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rex L. Northup, MD

Pediatric Critical Care Medicine Physician in Pensacola, FL · enumerated 2006.

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

National Provider Identifier

1083631691

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Registry record

Entity type Individual (Type 1)

Name Rex L. Northup

Credential MD

Sex Male

Practice address 1675 Trinity Dr, Pensacola, FL, 32504

Phone (850) 416-7000

Fax (850) 475-4619

Enumeration date Jul 17, 2006

Last updated in NPPES Jul 14, 2014

Taxonomy & licenses

2080P0203X Pediatric Critical Care Medicine Physician Allopathic & Osteopathic Physicians · License ME41317 (FL) Primary

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

Other identifiers

Identifier	Type	State	Issuer
04695776	Medicaid	MI	-
068375200	Medicaid	FL	-
0200362590	Medicaid	KS	-
009711190	Medicaid	AL	-
01054709	Medicaid	MS	-

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 1083631691 active?

Yes, as of the latest NPPES snapshot, NPI 1083631691 is active (record last updated 2014-07-14).

How do I verify Rex Northup's NPI record?

Cross-check NPI 1083631691 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-14.