Gregory Schimkat, RN, MSN
NPI 1275464265 · Psychiatric/Mental Health Nurse Practitioner · Oshkosh, WI
Gregory Schimkat, RN, MSN is a Psychiatric/Mental Health Nurse Practitioner provider in Oshkosh, WI (NPI 1275464265).
Provider details
- NPI number
- 1275464265
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, MSN
- Sex
- Male
- Sole proprietor
- No
- License
- 23341330 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2026-05-27
- Last updated
- 2026-05-27
- Certified
- 2026-05-27
Frequently asked questions
- What is Gregory Schimkat's NPI number?
- Gregory Schimkat's National Provider Identifier (NPI) is 1275464265, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Schimkat's specialty?
- Gregory Schimkat is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gregory Schimkat located?
- Gregory Schimkat's practice location on file with NPPES is 600 N Westhaven Dr, Oshkosh, WI 54904-6926.
- What is Gregory Schimkat's phone number?
- The practice phone number listed in the NPPES registry for Gregory Schimkat is (920) 720-2300.
- Is Gregory Schimkat's NPI active?
- Yes — Gregory Schimkat's NPI (1275464265) is active in the NPPES registry as of the last update on 2026-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.