Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Todd Gray, D.O.

Interventional Cardiology Physician in Denton, TX · enumerated 2006 · practices at Collaborative Cardiology Pllc.

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

National Provider Identifier

1467407197

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Registry record

Entity type Individual (Type 1)

Name Dr. William Todd Gray

Credential D.O.

Sex Male

Practice address 3341 Unicorn Lake Blvd, Denton, TX, 76210

Phone (469) 814-4475

Fax (469) 814-4480

Enumeration date May 23, 2006

Last updated in NPPES Dec 11, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License L0810 (TX) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License L0810 (TX) Secondary

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License L0180 (TX) Secondary

207UN0901X Nuclear Cardiology Physician Allopathic & Osteopathic Physicians · License L0810 (TX) Secondary

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License L0810 (TX) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
P01095620	Other	TX	MEDICARE RR

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is William Gray?

William Gray is registered in NPPES with the primary taxonomy of Interventional Cardiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Minh Tran Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Denton, TX NPI 1598975310 Matthew Evans Clinical Cardiac Electrophysiology Physician · Denton, TX NPI 1083812838 Rachal Capulli Surgical Physician Assistant · Denton, TX NPI 1568787539 Josue Nunez Surgical Physician Assistant · Denton, TX NPI 1306385992 Rachel Holtgreive Physician Assistant · Denton, TX NPI 1366030900 Collaborative Cardiology Pllc Cardiovascular Disease Physician · Denton, TX NPI 1306507504

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-11.