Joseph Chojnacki, PHD
NPI 1033211719 · Psychologist · Marshfield, WI
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Chojnacki, PHD is a Psychologist provider in Marshfield, WI (NPI 1033211719).
Provider details
- NPI number
- 1033211719
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 1955 (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
19 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
Registry dates
- Enumerated
- 2006-09-02
- Last updated
- 2024-04-05
- Certified
- 2024-04-05
Frequently asked questions
- What is Joseph Chojnacki's NPI number?
- Joseph Chojnacki's National Provider Identifier (NPI) is 1033211719, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Chojnacki's specialty?
- Joseph Chojnacki is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Joseph Chojnacki located?
- Joseph Chojnacki's practice location on file with NPPES is 1000 N Oak Ave, Marshfield, WI 54449.
- What is Joseph Chojnacki's phone number?
- The practice phone number listed in the NPPES registry for Joseph Chojnacki is (715) 387-5445.
- Does Joseph Chojnacki accept Medicare?
- Joseph Chojnacki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Chojnacki's NPI active?
- Yes — Joseph Chojnacki's NPI (1033211719) is active in the NPPES registry as of the last update on 2024-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.