Active NPI
John Olaf Stampen
- Mental Health Counselor
- Milwaukee, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Mental Health Counselor
- Practice address
- 10012 W Capitol Dr Ste 101
Milwaukee, WI 53222-1300 - Phone
- (414) 810-4844
- Fax
- (414) 810-4845
- NPI assigned
- May 27, 2025
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | |||
| Mental Health Counselor | 101YM0800X | Primary |
Addresses
Primary practice location
10012 W Capitol Dr Ste 101
Milwaukee, WI 53222-1300
Mailing address
2044 N Lake Dr
Milwaukee, WI 53202-1333
Phone (608) 698-5282
Other practice location 1
6416 S Howell Ave
Oak Creek, WI 53154-1104
Phone (414) 304-5713
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
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| West Grove Clinic, SC | Current | Accepting new patients |
Locations
17 Park Pl
Ste 400
Appleton, WI 54914
Phone (920) 209-1765
1400 75th St
Kenosha, WI 53143
Phone (262) 697-1820
6416 S Howell Ave
Oak Creek, WI 53154
Phone (414) 304-5713
10012 W Capitol Dr
Ste 101
Wauwatosa, WI 53222
Phone (414) 810-4844
10012 W Capitol Dr
Wauwatosa, WI 53222
Phone (414) 810-4844
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Wauwatosa, WI
- NPI 1518167477
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1748304000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1748304000000",
"number": "1225821697",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2044 N LAKE DR",
"city": "MILWAUKEE",
"state": "WI",
"postal_code": "532021333",
"telephone_number": "608-698-5282"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "10012 W CAPITOL DR STE 101",
"city": "MILWAUKEE",
"state": "WI",
"postal_code": "532221300",
"telephone_number": "414-810-4844",
"fax_number": "414-810-4845"
}
],
"practiceLocations": [
{
"address_1": "6416 S Howell Ave",
"address_purpose": "LOCATION",
"city": "Oak Creek",
"state": "WI",
"postal_code": "531541104",
"country_code": "US",
"telephone_number": "414-304-5713",
"fax_number": "414-304-5721",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "STAMPEN",
"first_name": "JOHN",
"middle_name": "OLAF",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2025-05-27",
"last_updated": "2025-05-27",
"certification_date": "2025-05-27",
"status": "A"
},
"taxonomies": [
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": null,
"license": null,
"primary": false
},
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": null,
"license": null,
"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 May 27, 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.