A1 Venture LLC
A1 Venture LLC is a healthcare organization registered as Case Management Agency in Alpena, MI, holding Type 2 (organization) NPI 1679190151 since 2020. The authorized official on file is Katherine Witkowski, Founder.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1679190151 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | A1 Venture LLC |
| Other name | <Unavail> |
| Practice address | 112 W CHISHOLM ST, Alpena, MI, 49707 |
| Phone | 9893401645 |
| Enumeration date | 2020-06-30 |
| Last updated in NPPES | 2020-07-17 |
Authorized official
| Name | Katherine Witkowski |
|---|---|
| Title | Founder |
| Phone | 9893401645 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 104100000X | Social Worker | Secondary | — | — |
| 251B00000X | Case Management Agency | Primary | — | — |
Copy-ready billing details
Provider: A1 Venture LLC NPI: 1679190151 Taxonomy: 251B00000X (Case Management Agency) Address: 112 W CHISHOLM ST, Alpena, MI, 49707
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1720419252 | Danica Dumsch | Individual | Clinical Social Worker | Alpena, MI |
| 1578987863 | Amanda Sola | Individual | Clinical Social Worker | Alpena, MI |
| 1184081093 | Katherine Witkowski | Individual | Psychologist | Alpena, MI |
Verify this record
Cross-check NPI 1679190151 against the authoritative CMS record: view A1 Venture LLC on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What type of organization is A1 Venture LLC?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-07-17.