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Mark Rybczynski, D.O.
NPI 1124113386 · Family Medicine Physician · St John, IN
Mark Rybczynski, D.O. is a Family Medicine Physician provider in St John, IN (NPI 1124113386).
Provider details
- NPI number
- 1124113386
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 02001056A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
9495 Keilman Avenue
Suite 3 and 4
St John, IN 46373-9295
Phone: (219) 365-7000
Fax: (219) 365-2609
Street-level locationGet directions
Mailing address
1040 Sierra Dr
Greenwood, IN 46143-7240
Registry dates
- Enumerated
- 2006-10-04
- Last updated
- 2011-12-21
Frequently asked questions
- What is Mark Rybczynski's NPI number?
- Mark Rybczynski's National Provider Identifier (NPI) is 1124113386, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Rybczynski's specialty?
- Mark Rybczynski is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Rybczynski located?
- Mark Rybczynski's practice location on file with NPPES is 9495 Keilman Avenue, St John, IN 46373-9295.
- What is Mark Rybczynski's phone number?
- The practice phone number listed in the NPPES registry for Mark Rybczynski is (219) 365-7000.
- Is Mark Rybczynski's NPI active?
- Yes — Mark Rybczynski's NPI (1124113386) is active in the NPPES registry as of the last update on 2011-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.