Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melissa B. Gillespie

Emergency Medicine Physician in Boulder, CO · enumerated 2006.

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

National Provider Identifier

1649208471

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Melissa B. Gillespie

Sex Female

Practice address 4747 Arapahoe Ave, Boulder, CO, 80303

Phone (303) 415-7000

Fax (303) 306-7753

Enumeration date Jun 29, 2006

Last updated in NPPES Jun 22, 2016

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036-084265 (IL) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License DR.0056823 (CO) Primary

Other identifiers

Identifier	Type	State	Issuer
036-084265	Medicaid	IL	-
DR.0056823	Other	CO	COLORADO MEDICAL LICENSE

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 Melissa Gillespie practice?

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

What is the NPI number for Melissa Gillespie?

The National Provider Identifier (NPI) for Melissa Gillespie is 1649208471, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Boulder Community Health General Acute Care Hospital · Boulder, CO NPI 1821074196 Michael Thompson Emergency Medicine Physician · Boulder, CO NPI 1316924178 Cynthia Ashby Neonatal Nurse Practitioner · Boulder, CO NPI 1639157472 Matthew Loran Emergency Medicine Physician · Boulder, CO NPI 1376521641 Carol Wallman Neonatal Nurse Practitioner · Boulder, CO NPI 1548248008 Stefanie Krenz Internal Medicine Physician · Boulder, CO NPI 1982676250 Michael Schlegel Emergency Medicine Physician · Boulder, CO NPI 1740252220 Linda Klein Neonatal Nurse Practitioner · Boulder, CO NPI 1255303780

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-22.