Active NPI
Jeffrey Thomas Gilis, MS, RD
- Registered Dietitian
- Fort Collins, CO
National Provider Identifier
1922449610
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Registered Dietitian
- Practice address
- 2451 S Timberline Rd
Fort Collins, CO 80525-4130 - Phone
- (419) 215-4694
- NPI assigned
- Jul 10, 2013
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Registered Dietitian | 133V00000X | CO | Primary |
Addresses
Primary practice location
2451 S Timberline Rd
Fort Collins, CO 80525-4130
Mailing address
2451 S Timberline Rd
Fort Collins, CO 80525-4130
Phone (419) 215-4694
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Master of Science
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| LD.7243 | OH | MD | Registered Dietitian |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1373414400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782259200000",
"number": "1922449610",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2451 S TIMBERLINE RD",
"city": "FORT COLLINS",
"state": "CO",
"postal_code": "805254130",
"telephone_number": "419-215-4694"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2451 S TIMBERLINE RD",
"city": "FORT COLLINS",
"state": "CO",
"postal_code": "805254130",
"telephone_number": "419-215-4694"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GILIS",
"first_name": "JEFFREY",
"middle_name": "THOMAS",
"name_prefix": "Mr.",
"credential": "MS, RD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2013-07-10",
"last_updated": "2026-06-24",
"certification_date": "2026-06-24",
"status": "A"
},
"taxonomies": [
{
"code": "133V00000X",
"taxonomy_group": "",
"desc": "Dietitian, Registered",
"state": "CO",
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Fort Collins, CO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.