Active NPI
Mackenzie Callahan
- Clinical Psychologist
- Chelsea, MI
National Provider Identifier
1366288698
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 6301019746
- Practice address
- 350 N Main St Ste 220
Chelsea, MI 48118-1635 - Phone
- (734) 433-5100
- NPI assigned
- Jul 5, 2024
- 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 |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | 6301019746 | MI | Primary |
Addresses
Primary practice location
350 N Main St Ste 220
Chelsea, MI 48118-1635
Mailing address
13098 Speckledwood Dr
Dewitt, MI 48820-8191
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 |
|---|---|---|---|
| 6301019746 | MI | MD | Clinical Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1720137600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757030400000",
"number": "1366288698",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "13098 SPECKLEDWOOD DR",
"city": "DEWITT",
"state": "MI",
"postal_code": "488208191"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "350 N MAIN ST STE 220",
"city": "CHELSEA",
"state": "MI",
"postal_code": "481181635",
"telephone_number": "734-433-5100"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CALLAHAN",
"first_name": "MACKENZIE",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2024-07-05",
"last_updated": "2025-09-05",
"certification_date": "2025-09-05",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "MI",
"license": "6301019746",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Chelsea, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 5, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.