NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary E Willy, DO

Pediatrics Physician in Grand Junction, CO · enumerated 2006.

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

National Provider Identifier

1073584462

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Mary E Willy
Credential DO
Sex Female
Practice address 360 W Park Dr, Suite 201, Grand Junction, CO, 81505
Phone (970) 609-7337
Fax (970) 233-9829
Enumeration date Feb 1, 2006
Last updated in NPPES Feb 6, 2023

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License DR.0045400 (CO) Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License DR0045400 (CO) 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

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 Mary Willy?
The National Provider Identifier (NPI) for Mary Willy is 1073584462, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Willy practice?
The practice location on file with NPPES is in Grand Junction, CO. 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 2023-02-06.