John Sobolewski, MD
NPI 1912992629 · General Practice Physician · Lake Station, IN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Sobolewski, MD is a General Practice Physician provider in Lake Station, IN (NPI 1912992629).
Provider details
- NPI number
- 1912992629
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 01036528A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2005-09-19
- Last updated
- 2018-01-25
Frequently asked questions
- What is John Sobolewski's NPI number?
- John Sobolewski's National Provider Identifier (NPI) is 1912992629, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sobolewski's specialty?
- John Sobolewski is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is John Sobolewski located?
- John Sobolewski's practice location on file with NPPES is 2490 Central Ave, Lake Station, IN 46405-2122.
- What is John Sobolewski's phone number?
- The practice phone number listed in the NPPES registry for John Sobolewski is (219) 763-8112.
- Does John Sobolewski accept Medicare?
- John Sobolewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Sobolewski's NPI active?
- Yes — John Sobolewski's NPI (1912992629) is active in the NPPES registry as of the last update on 2018-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.