Active NPI
Marshall H Dahlin, CADC III
- Addiction (Substance Use Disorder) Counselor
- La Crosse, WI
National Provider Identifier
1922055789
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Addiction (Substance Use Disorder) Counselor
- License
- 590
- Practice address
- 212 S 11TH Street
La Crosse, WI 54601 - Phone
- (608) 791-9555
- Fax
- (608) 791-9432
- NPI assigned
- May 27, 2006
- 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 |
|---|---|---|---|---|
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | 590 | WI | Primary |
Addresses
Primary practice location
212 S 11TH Street
La Crosse, WI 54601
Mailing address
700 West Avenue South
Attn: Physician Services
La Crosse, WI 54601
Phone (608) 791-4156
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 39322100 | Medicaid | WI |
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 |
|---|---|---|---|
| 590 | WI | MD | Nurse Practitioner |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1148688000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1922055789",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "700 WEST AVENUE SOUTH",
"address_2": "ATTN: PHYSICIAN SERVICES",
"city": "LA CROSSE",
"state": "WI",
"postal_code": "54601",
"telephone_number": "608-791-4156",
"fax_number": "608-791-9898"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "212 S 11TH STREET",
"city": "LA CROSSE",
"state": "WI",
"postal_code": "54601",
"telephone_number": "608-791-9555",
"fax_number": "608-791-9432"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DAHLIN",
"first_name": "MARSHALL",
"middle_name": "H",
"credential": "CADC III",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-05-27",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": "WI",
"license": "590",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "39322100",
"state": "WI"
}
],
"endpoints": [],
"other_names": []
}Other providers in La Crosse, 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.