Active NPI
Brittany Mahrer
- Professional Counselor
- Denver, CO
National Provider Identifier
1689515751
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Professional Counselor
- License
- 0018110
- Practice address
- 1850 Bassett St Apt 1002
Denver, CO 80202-6195 - Phone
- (303) 880-6933
- NPI assigned
- Apr 2, 2026
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Professional Counselor | 101YP2500X | 0018110 | CO | Primary |
Addresses
Primary practice location
1850 Bassett St Apt 1002
Denver, CO 80202-6195
Mailing address
1850 Bassett St Apt 1002
Denver, CO 80202-6195
Phone (303) 880-6933
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 0018110 | CO | MD | Professional Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1775088000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1775088000000",
"number": "1689515751",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1850 BASSETT ST APT 1002",
"city": "DENVER",
"state": "CO",
"postal_code": "802026195",
"telephone_number": "303-880-6933"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1850 BASSETT ST APT 1002",
"city": "DENVER",
"state": "CO",
"postal_code": "802026195",
"telephone_number": "303-880-6933"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MAHRER",
"first_name": "BRITTANY",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2026-04-02",
"last_updated": "2026-04-02",
"certification_date": "2026-04-02",
"status": "A"
},
"taxonomies": [
{
"code": "101YP2500X",
"taxonomy_group": "",
"desc": "Counselor, Professional",
"state": "CO",
"license": "0018110",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Denver, CO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 2, 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.