Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas Guerrero-Garcia, M.D.

Hematology & Oncology Physician in The Woodlands, TX · enumerated 2012.

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

National Provider Identifier

1689939993

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Thomas Guerrero-Garcia

Credential M.D.

Sex Male

Practice address 17201 I 45 S, The Woodlands, TX, 77385

Phone (936) 270-2000

Enumeration date Jul 12, 2012

Last updated in NPPES Jan 19, 2026

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 2019005326 (MO) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 259137 (MA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License LP02565 (RI) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License V6591 (TX) Primary

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

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

Where does Thomas Guerrero-Garcia practice?

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

What is the NPI number for Thomas Guerrero-Garcia?

The National Provider Identifier (NPI) for Thomas Guerrero-Garcia is 1689939993, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Alexandria Allen Hospitalist Physician · Shenandoah, TX NPI 1053554303 Naa Sackey Obstetrics & Gynecology Physician · Shenandoah, TX NPI 1578790143 Georgia Woolery Psychiatric/Mental Health Nurse Practitioner · Shenandoah, TX NPI 1174813596 Lauren Laroche Emergency Medicine Physician · Shenandoah, TX NPI 1275818536 Ritu Parikh Hospitalist Physician · The Woodlands, TX NPI 1649533639 Prahlad Sunil Hospitalist Physician · The Woodlands, TX NPI 1609118827 Prabha Arumugam Hospitalist Physician · The Woodlands, TX NPI 1972986735 Methodist Health Centers General Acute Care Hospital · The Woodlands, TX NPI 1184179194

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-19.