Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Drew Conlan Castleberry, MD

Specialist in Denison, TX · enumerated 2005.

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

National Provider Identifier

1003893280

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Registry record

Entity type Individual (Type 1)

Name Dr. Drew Conlan Castleberry

Credential MD

Sex Male

Practice address 5016 S Us Highway 75, Denison, TX, 75020

Phone (903) 892-1131

Fax (903) 327-8023

Enumeration date Dec 28, 2005

Last updated in NPPES Mar 5, 2012

Taxonomy & licenses

174400000X Specialist Other Service Providers · License H0240 (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
104803502	Medicaid	TX	-

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 Drew Castleberry's NPI record?

Cross-check NPI 1003893280 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1003893280 active?

Yes, as of the latest NPPES snapshot, NPI 1003893280 is active (record last updated 2012-03-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-05.