Active NPI
Joanna Christmas
- Psychologist
- Plymouth, MI
National Provider Identifier
1902746498
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- 6351004922
- Practice address
- 44450 Pinetree Dr
Plymouth, MI 48170-3869 - Phone
- (734) 738-0897
- NPI assigned
- Apr 1, 2026
- Sex
- Unspecified or another gender identity
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Psychologist | 103T00000X | 6351004922 | MI | Primary |
Addresses
Primary practice location
44450 Pinetree Dr
Plymouth, MI 48170-3869
Mailing address
8980 Charlotte CT
Ypsilanti, MI 48197-6659
Phone (812) 239-6170
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 |
|---|---|---|---|
| 6351004922 | MI | MD | Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1775001600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1775001600000",
"number": "1902746498",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "8980 CHARLOTTE CT",
"city": "YPSILANTI",
"state": "MI",
"postal_code": "481976659",
"telephone_number": "812-239-6170"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "44450 PINETREE DR",
"city": "PLYMOUTH",
"state": "MI",
"postal_code": "481703869",
"telephone_number": "734-738-0897"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHRISTMAS",
"first_name": "JOANNA",
"sole_proprietor": "NO",
"sex": "X",
"enumeration_date": "2026-04-01",
"last_updated": "2026-04-01",
"certification_date": "2026-04-01",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "MI",
"license": "6351004922",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Plymouth, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 1, 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.