Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gary B Weiss, PH.D, MD

Hematology & Oncology Physician in Webster, TX · enumerated 2006.

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

National Provider Identifier

1215973961

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Registry record

Entity type Individual (Type 1)

Name Dr. Gary B Weiss

Credential PH.D, MD

Sex Male

Practice address 501 Medical Center Blvd, Webster, TX, 77598

Phone (281) 332-7505

Fax (281) 332-7616

Enumeration date Jun 21, 2006

Last updated in NPPES Mar 20, 2025

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License F0075 (TX) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License F0075 (TX) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License F0075 (TX) Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
135570304	Other	TX	CSHCN
135570307	Medicaid	TX	-
135570301	Medicaid	TX	-
135570303	Medicaid	TX	-
135570310	Medicaid	TX	-
135570309	Medicaid	TX	-
8R1585	Other	TX	BLUE CROSS OF TEXAS

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

Is NPI 1215973961 active?

Yes, as of the latest NPPES snapshot, NPI 1215973961 is active (record last updated 2025-03-20).

How do I verify Gary Weiss's NPI record?

Cross-check NPI 1215973961 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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David Gill Hematology & Oncology Physician · Webster, TX NPI 1891739280 David Walker Radiation Oncology Physician · Webster, TX NPI 1043256795 Alan Rodney Hematology & Oncology Physician · Webster, TX NPI 1881615243 Oncology Pharmacy Services Inc Specialty Pharmacy · Webster, TX NPI 1043233422 David Benner Pharmacist · Webster, TX NPI 1598824799 Dhatri Kodali Hematology & Oncology Physician · Webster, TX NPI 1477745800 Texas Oncology PA Medical Oncology Physician · Webster, TX NPI 1821265265

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-20.