Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joel R Underwood, MD

Anesthesiology Physician in Tyler, TX · enumerated 2006.

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

National Provider Identifier

1255344610

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Registry record

Entity type Individual (Type 1)

Name Dr. Joel R Underwood

Credential MD

Sex Male

Practice address 800 E Dawson St, Tyler, TX, 75701

Phone (903) 531-4500

Enumeration date Aug 15, 2006

Last updated in NPPES May 26, 2020

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License E-4888 (AR) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MED-PHYS-LIC-82373 (MT) Primary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License P4721 (TX) Secondary

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
309898001	Medicaid	TX	-
8DM214	Other	TX	BCBS
75-2616977-042	Other	TX	TRICARE
P01118428	Other	TX	RAIL ROAD

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.

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Frequently asked questions

How do I verify Joel Underwood's NPI record?

Cross-check NPI 1255344610 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1255344610 active?

Yes, as of the latest NPPES snapshot, NPI 1255344610 is active (record last updated 2020-05-26).

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Michael Gorby Internal Medicine Physician · Tyler, TX NPI 1366446049 Mother Frances Hospital Regional Health Care Center General Acute Care Hospital · Tyler, TX NPI 1679578439 Vicki Fox Acute Care Nurse Practitioner · Tyler, TX NPI 1649277138 James Collier Certified Registered Nurse Anesthetist · Tyler, TX NPI 1740288117 Robert Lueken Undersea and Hyperbaric Medicine (Emergency Medicine) Physician · Tyler, TX NPI 1649271677 Richard Wilson Internal Medicine Physician · Tyler, TX NPI 1609877000 Continuecare Hospital of Tyler, Inc. Long Term Care Hospital · Tyler, TX NPI 1174524466 Justin Hooper Pharmacist · Tyler, TX NPI 1215939046

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-26.