Active NPI
Darrell Linn Hischke, PH.D.
- Psychologist
- Milwaukee, WI
National Provider Identifier
1932105392
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- 1646057
- Practice address
- 2401 N Mayfair Rd
Ste 110
Milwaukee, WI 53226-1408 - Phone
- (414) 774-4288
- NPI assigned
- Jun 21, 2005
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Psychologist | 103T00000X | 1646057 | WI | Primary |
Addresses
Primary practice location
2401 N Mayfair Rd
Ste 110
Milwaukee, WI 53226-1408
Mailing address
2401 N Mayfair Rd
Ste 110
Milwaukee, WI 53226-1408
Phone (414) 774-4288
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)
- Enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 1646057 | WI | MD | Psychologist |
| 1646 | WI | MD | Physical Therapist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1119312000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1932105392",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2401 N MAYFAIR RD",
"address_2": "STE 110",
"city": "MILWAUKEE",
"state": "WI",
"postal_code": "532261408",
"telephone_number": "414-774-4288"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2401 N MAYFAIR RD",
"address_2": "STE 110",
"city": "MILWAUKEE",
"state": "WI",
"postal_code": "532261408",
"telephone_number": "414-774-4288"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HISCHKE",
"first_name": "DARRELL",
"middle_name": "LINN",
"name_prefix": "Dr.",
"credential": "PH.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-06-21",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "WI",
"license": "1646057",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Milwaukee, WI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.