John Oestreicher, PHD
NPI 1619962024 · Psychologist · Appleton, WI
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Oestreicher, PHD is a Psychologist provider in Appleton, WI (NPI 1619962024).
Provider details
- NPI number
- 1619962024
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 1822 (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
20 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
- 2005-09-13
- Last updated
- 2008-09-09
Frequently asked questions
- What is John Oestreicher's NPI number?
- John Oestreicher's National Provider Identifier (NPI) is 1619962024, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Oestreicher's specialty?
- John Oestreicher is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is John Oestreicher located?
- John Oestreicher's practice location on file with NPPES is 1531 S Madison St, Appleton, WI 54915-1800.
- What is John Oestreicher's phone number?
- The practice phone number listed in the NPPES registry for John Oestreicher is (920) 730-4411.
- Does John Oestreicher accept Medicare?
- John Oestreicher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Oestreicher's NPI active?
- Yes — John Oestreicher's NPI (1619962024) is active in the NPPES registry as of the last update on 2008-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.