A1 Venture LLC
NPI 1679190151 · Case Management Agency · Alpena, MI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
A1 Venture LLC is a Case Management Agency organization in Alpena, MI (NPI 1679190151).
Provider details
- NPI number
- 1679190151
- Entity type
- Organization
- Primary specialty
- Case Management AgencyAgencies
- Organization subpart
- No
- Authorized official
- Katherine Witkowski, Founder(989) 340-1645
Specialties & taxonomies
Agencies
- Social Worker104100000X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- A1 Case Management
Registry dates
- Enumerated
- 2020-06-30
- Last updated
- 2020-07-17
- Certified
- 2020-07-17
Frequently asked questions
- What is A1 Venture LLC's NPI number?
- A1 Venture LLC's National Provider Identifier (NPI) is 1679190151, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is A1 Venture LLC?
- A1 Venture LLC is classified in the NPPES registry as Case Management Agency (Agencies).
- Where is A1 Venture LLC located?
- A1 Venture LLC's practice location on file with NPPES is 112 W Chisholm St, Alpena, MI 49707-2446.
- What is A1 Venture LLC's phone number?
- The practice phone number listed in the NPPES registry for A1 Venture LLC is (989) 340-1645.
- Does A1 Venture LLC accept Medicare?
- A1 Venture LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for A1 Venture LLC?
- The authorized official listed on A1 Venture LLC's NPPES record is Katherine Witkowski, Founder. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is A1 Venture LLC's NPI active?
- Yes — A1 Venture LLC's NPI (1679190151) is active in the NPPES registry as of the last update on 2020-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.