Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Grace Dalmacion, MD

Hospitalist Physician in Lone Tree, CO · enumerated 2011.

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

National Provider Identifier

1639453921

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Registry record

Entity type Individual (Type 1)

Name Dr. Grace Dalmacion

Credential MD

Sex Female

Practice address 10101 Ridgegate Pkwy, Lone Tree, CO, 80124

Phone (303) 338-4545

Enumeration date Oct 5, 2011

Last updated in NPPES Jul 20, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License P2625 (TX) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD2016-0239 (NM) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License DR.0066009 (CO) Primary

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

Other identifiers

Identifier	Type	State	Issuer
029227	Other	CO	KAISER COMMERCIAL NUMBER

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 Grace Dalmacion 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 Grace Dalmacion?

The National Provider Identifier (NPI) for Grace Dalmacion is 1639453921, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-20.