IndividualActive
John Poss, NP
NPI 1578551172 · Nurse Practitioner · Oshkosh, WI
John Poss, NP is a Nurse Practitioner provider in Oshkosh, WI (NPI 1578551172).
Provider details
- NPI number
- 1578551172
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- 88433 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Detailed profile(91/100 index)
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
855 N Westhaven Dr
Oshkosh, WI 54904-7668
Phone: (920) 456-7408
Street-level locationGet directions
Mailing address
2901 W Kinnickinnic River Pkwy Ste 309
Milwaukee, WI 53215-3660
Registry dates
- Enumerated
- 2005-10-10
- Last updated
- 2021-12-01
- Certified
- 2021-12-01
Frequently asked questions
- What is John Poss's NPI number?
- John Poss's National Provider Identifier (NPI) is 1578551172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Poss's specialty?
- John Poss is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Poss located?
- John Poss's practice location on file with NPPES is 855 N Westhaven Dr, Oshkosh, WI 54904-7668.
- What is John Poss's phone number?
- The practice phone number listed in the NPPES registry for John Poss is (920) 456-7408.
- Is John Poss's NPI active?
- Yes — John Poss's NPI (1578551172) is active in the NPPES registry as of the last update on 2021-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.