Active NPI
Darin Erik Olson, M.D., PH.D.
- Endocrinology, Diabetes & Metabolism Physician
- Fort Collins, CO
National Provider Identifier
1043324700
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Endocrinology, Diabetes & Metabolism Physician
- License
- DR.0066793
- Practice address
- 2121 E Harmony Rd Unit 230
Fort Collins, CO 80528-3401 - Phone
- (970) 926-6340
- Fax
- (970) 224-3636
- NPI assigned
- Aug 19, 2006
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | 046895 | GA | |
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | DR.0066793 | CO | Primary |
Addresses
Primary practice location
2121 E Harmony Rd Unit 230
Fort Collins, CO 80528-3401
Mailing address
2121 E Harmony Rd Unit 230
Fort Collins, CO 80528-3401
Phone (970) 926-6340
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CO
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Endocrinology
- Education
- Boston University School of Medicine, 1997
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
2121 E Harmony Rd
Unit 230 Uchmg Endocrinology/Rheumatology
Fort Collins, CO 80528-3401
Phone (970) 266-8822
3 Superior Dr
Suite 100C
Superior, CO 80027-8653
Phone (303) 415-8940
Hospital & facility affiliations
- Poudre Valley Hospital
- Ivinson Memorial Hospital
- Boulder Community Health
- Medical Center of the Rockies
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine, Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 046895 | GA | MD | Endocrinology, Diabetes & Metabolism Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Poudre Valley Medical Group, LLC | Current | Accepting new patients | |
| Poudre Valley Medical Group, LLC | Current | Accepting new patients |
Locations
4404 Barranca Ln
Castle Rock, CO 80104
Phone (720) 733-5260
8890 N Union Blvd
Colorado Springs, CO 80920
Phone (719) 364-5633
2121 E Harmony Rd
Unit 230
Fort Collins, CO 80528
Phone (970) 266-8822
Networks
- CO HMO C-SNP
- CO HMO D-SNP
- CO HMO
- devoted network organization-a4751131-f16f-4e82-8f2b-b08e66379a7a
Organizations & group practices 3
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- General Practice Physician
- Loveland, CO
- NPI 1225356868
-
- General Acute Care Hospital
- Boulder, CO
- NPI 1821074196
-
- General Practice Physician
- Loveland, CO
- NPI 1366763260
Hospital & facility affiliations 53
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Sleep Disorder Diagnostic Clinic/Center
- Boulder, CO
- NPI 1093357907
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1155945600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763078400000",
"number": "1043324700",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2121 E HARMONY RD UNIT 230",
"city": "FORT COLLINS",
"state": "CO",
"postal_code": "805283401",
"telephone_number": "970-926-6340",
"fax_number": "970-224-3636"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2121 E HARMONY RD UNIT 230",
"city": "FORT COLLINS",
"state": "CO",
"postal_code": "805283401",
"telephone_number": "970-926-6340",
"fax_number": "970-224-3636"
}
],
"practiceLocations": [],
"basic": {
"last_name": "OLSON",
"first_name": "DARIN",
"middle_name": "ERIK",
"name_prefix": "Dr.",
"credential": "M.D., PH.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-08-19",
"last_updated": "2025-11-14",
"certification_date": "2025-11-14",
"status": "A"
},
"taxonomies": [
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "GA",
"license": "046895",
"primary": false
},
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "CO",
"license": "DR.0066793",
"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 Nov 14, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.