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

Jeffrey Patrick Michalak, DO

Individual provider Gastroenterology Physician · NPI 1962622431

Jeffrey Patrick Michalak, DO is a Gastroenterology in Dakota Dunes, South Dakota. Graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2005, 21 years ago. Practices with Cnos PC, a 98-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Iowa, Nebraska and South Dakota.

Years since qualifying
21
Trained at
Kansas City University of Med & Biosciences, College of Osteo Med
Licensed in
IA, NE, SD
In the registry since
2007
Specialties on file
3
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

575 N Sioux Point Rd
Dakota Dunes, SD 57049-5312
Phone: (605) 217-2667
Fax: (605) 217-2900
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 705 N Sioux Point Rd, Dakota Dunes, SD 57049-5091 — (605) 217-5500

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 8388 (SD)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 933 (NE)
Gastroenterology Physician Taxonomy 207RG0100X · Licence DO-04307 (IA)

Record details

NPI number1962622431
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 26, 2007
Last updated in NPPESDecember 10, 2025
Certification dateDecember 10, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolKANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED
Graduated 2005 (21 years in practice)
Group practice Cnos Pc — 98 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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