HealthCareAtlasUSA

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Doctors / IA

JEFFREY P MICHALAK, DO

GASTROENTEROLOGY

Medical school: KANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED

Graduated: 2005

NPI: 1962622431

Practice Locations (6)

CNOS PC

2720 STONE PARK BLVD

SIOUX CITY, IA 511043734

7122793500

CNOS PC

2735 OUTER DR N, CNOS NORTHSIDE

SIOUX CITY, IA 511041590

7122245692

CNOS PC

801 5TH ST

SIOUX CITY, IA 511011326

7122792010

CNOS PC

575 N SIOUX POINT RD

DAKOTA DUNES, SD 570495312

6052172667

CNOS PC

600 N SIOUX POINT RD

DAKOTA DUNES, SD 570495000

6052323332

CNOS PC

705 N SIOUX POINT RD, SUITE 100

DAKOTA DUNES, SD 570495091

6052172667

Source: CMS National Downloadable File, September 2026.

JEFFREY MICHALAK, DO | HealthCareAtlasUSA