Active NPI
Ashton John Mattinson, PHARMD
- Pharmacist
- Fort Collins, CO
National Provider Identifier
1295400927
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pharmacist
- License
- 0023684
- Practice address
- 4625 S Mason St
Fort Collins, CO 80525-3740 - Phone
- (970) 372-3481
- Fax
- (970) 372-3481
- NPI assigned
- Aug 13, 2021
- Last updated
- May 25, 2026
- Sex
- Male
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Pharmacist | 183500000X | 0023684 | CO | Primary |
| Pharmacist | 183500000X | 4322 | WY |
Addresses
Primary practice location
4625 S Mason St
Fort Collins, CO 80525-3740
Mailing address
4625 S Mason St
Fort Collins, CO 80525-3740
Phone (970) 372-3481
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
- Doctor of Pharmacy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 0023684 | CO | MD | Pharmacist |
| 4322 | WY | MD | Pharmacist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Walmart Inc. | Past | Accepting new patients | |
| Safeway Inc | Past | Accepting new patients | |
| Safeway Inc | Past | Accepting new patients | |
| Walmart Inc. | Past | Accepting new patients |
Organizations & group practices 4
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1628812800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1779667200000",
"number": "1295400927",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4625 S MASON ST",
"city": "FORT COLLINS",
"state": "CO",
"postal_code": "805253740",
"telephone_number": "970-372-3481",
"fax_number": "970-372-3480"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4625 S MASON ST",
"city": "FORT COLLINS",
"state": "CO",
"postal_code": "805253740",
"telephone_number": "970-372-3481",
"fax_number": "970-372-3481"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MATTINSON",
"first_name": "ASHTON",
"middle_name": "JOHN",
"credential": "PHARMD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2021-08-13",
"last_updated": "2026-05-25",
"certification_date": "2026-05-25",
"status": "A"
},
"taxonomies": [
{
"code": "183500000X",
"taxonomy_group": "",
"desc": "Pharmacist",
"state": "CO",
"license": "0023684",
"primary": true
},
{
"code": "183500000X",
"taxonomy_group": "",
"desc": "Pharmacist",
"state": "WY",
"license": "4322",
"primary": false
}
],
"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 May 25, 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.