Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

John L Kniaz, DO

Individual provider Gastroenterology Physician · NPI 1659470110

John L Kniaz, DO is a Gastroenterology Physician in Munster, Indiana. Works from 2 locations. Licensed in Indiana.

Licensed in
IN
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

9410 Calumet Ave Ste 401
Munster, IN 46321-0018
Phone: (219) 922-4900
Fax: (219) 836-9922
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 16000 W. 101st Ave., Dyer, IN 46311 — (219) 922-4900

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 02000771 (IN)

Record details

NPI number1659470110
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 21, 2006
Last updated in NPPESAugust 13, 2024
Certification dateAugust 13, 2024
Mailing address9410 Calumet Ave Ste 401, Munster, IN 46321-0018

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