Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Elijah Seeger Grillo, M.D.

Internal Medicine Physician in Lone Tree, CO · enumerated 2015 · practices at Poudre Valley Medical Group, LLC.

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

National Provider Identifier

1285029447

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Registry record

Entity type Individual (Type 1)

Name Elijah Seeger Grillo

Credential M.D.

Sex Male

Practice address Lone Tree, CO, 80124

Phone (303) 265-3970

Fax (303) 265-3971

Enumeration date Apr 3, 2015

Last updated in NPPES Jul 5, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License DR.0059882 (CO) 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 Elijah Grillo practice?

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

What is the NPI number for Elijah Grillo?

The National Provider Identifier (NPI) for Elijah Grillo is 1285029447, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-05.