Spencer Kostka
NPI 1699563841 · Addiction (Substance Use Disorder) Counselor · Oshkosh, WI
Spencer Kostka is a Addiction (Substance Use Disorder) Counselor provider in Oshkosh, WI (NPI 1699563841).
Provider details
- NPI number
- 1699563841
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 20547 (WI)
Specialties & taxonomies
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
1 yr 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
Registry dates
- Enumerated
- 2025-04-28
- Last updated
- 2026-03-11
- Certified
- 2026-03-11
Frequently asked questions
- What is Spencer Kostka's NPI number?
- Spencer Kostka's National Provider Identifier (NPI) is 1699563841, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Kostka's specialty?
- Spencer Kostka is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Spencer Kostka located?
- Spencer Kostka's practice location on file with NPPES is 220 Washington Ave, Oshkosh, WI 54901-5030.
- What is Spencer Kostka's phone number?
- The practice phone number listed in the NPPES registry for Spencer Kostka is (920) 236-4700.
- Is Spencer Kostka's NPI active?
- Yes — Spencer Kostka's NPI (1699563841) is active in the NPPES registry as of the last update on 2026-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.