Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark T Warner, MD

Q: What is the NPI number for Mark Warner?

The National Provider Identifier (NPI) for Mark Warner is 1659531036, a Type 1 (individual) record in the CMS NPPES registry.

Pulmonary Disease Physician in Houston, TX · enumerated 2008.

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

National Provider Identifier

1659531036

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mark T Warner

Credential MD

Sex Male

Practice address 6410 Fannin St Ste 600, Houston, TX, 77030

Phone (832) 325-7100

Enumeration date Jun 10, 2008

Last updated in NPPES Mar 21, 2025

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License N0542 (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
8BB484	Other	TX	BCBS
197728201	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mark Warner?

The National Provider Identifier (NPI) for Mark Warner is 1659531036, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Warner practice?

The practice location on file with NPPES is in Houston, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-21.