John KniazDO
John Kniaz, DO is a Gastroenterology provider in Munster, IN, as of July 2026.
- NPI1659470110
- Registered2006
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
John Kniaz at a glance
- Provider
- John Kniaz
- Credential
- DO
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Munster, IN
- NPI registered
- 2006
- NPI
- 1659470110
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does John Kniaz practice?
John Kniaz, DO is based in Munster, IN. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Kniaz's NPI number?
John Kniaz's National Provider Identifier (NPI) is 1659470110, registered in 2006. Specialty on record: Gastroenterology; credential DO.
How many Gastroenterology providers in Indiana work at ambulatory surgery centers?
100 Gastroenterology surgeons and proceduralists in Indiana are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, John Kniaz among them. The Indiana Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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