John Korolewski, DDS
NPI 1538238183 · Dentist · Sheboygan, WI
Enrolled with Medicare as Order and Referring Only - Other (physician) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Korolewski, DDS is a Dentist provider in Sheboygan, WI (NPI 1538238183).
Provider details
- NPI number
- 1538238183
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 3659 (WI)
Specialties & taxonomies
Dental 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
- 2006-11-07
- Last updated
- 2017-02-23
Frequently asked questions
- What is John Korolewski's NPI number?
- John Korolewski's National Provider Identifier (NPI) is 1538238183, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Korolewski's specialty?
- John Korolewski is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is John Korolewski located?
- John Korolewski's practice location on file with NPPES is 1407 N 8th St, Sheboygan, WI 53081-3400.
- What is John Korolewski's phone number?
- The practice phone number listed in the NPPES registry for John Korolewski is (920) 458-8389.
- Does John Korolewski accept Medicare?
- John Korolewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Korolewski's NPI active?
- Yes — John Korolewski's NPI (1538238183) is active in the NPPES registry as of the last update on 2017-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.