Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. C Perry Marshall, MD

Occupational Medicine Physician in Tyler, TX · enumerated 2006.

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

National Provider Identifier

1801996988

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Registry record

Entity type Individual (Type 1)

Name Dr. C Perry Marshall

Credential MD

Sex Male

Practice address 1327 Troup Hwy, Tyler, TX, 75701

Phone (903) 581-4300

Enumeration date Sep 25, 2006

Last updated in NPPES May 12, 2014

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License MD-8243 (HI) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 020238 (GA) Secondary

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License MD 8243 (HI) Secondary

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License N1757 (TX) 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
047915-03	Medicaid	HI	-
0000054536	Other	HI	HMSA BILLING NUMBER

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

How do I verify C Perry Marshall's NPI record?

Cross-check NPI 1801996988 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1801996988 active?

Yes, as of the latest NPPES snapshot, NPI 1801996988 is active (record last updated 2014-05-12).

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Ming Lu Ophthalmology Physician · Tyler, TX NPI 1225035827 Gary Womack Ophthalmology Physician · Tyler, TX NPI 1225038565 Thomas Volatile Orthopaedic Surgery Physician · Tyler, TX NPI 1093709776 William Swartworth Preventive Medicine/Occupational Environmental Medicine Physician · Tyler, TX NPI 1821071846 Clayton Whitney Ophthalmology Physician · Tyler, TX NPI 1780655340 Wayne Jones Optometrist · Tyler, TX NPI 1528030095 Steven Cohen Rheumatology Physician · Tyler, TX NPI 1063485886 Catherine Fieseler Sports Medicine (Physical Medicine & Rehabilitation) Physician · Tyler, TX NPI 1225002819

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-12.