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

Michael D. Harder, DO

Individual provider Family Medicine Physician · NPI 1427064146

Michael D. Harder, DO is a Family Practice in Sioux City, Iowa. Qualified in 2005, 21 years ago. Practices with Family Health Care of Siouxland PLC, a 49-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
21
Licensed in
IA
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

4230 Hamilton Blvd
Sioux City, IA 51104-1137
Phone: (712) 239-4900
Fax: (712) 239-2866
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 3726 (IA)

Record details

NPI number1427064146
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 1, 2006
Last updated in NPPESFebruary 27, 2026
Certification dateFebruary 27, 2026
Mailing address200 Gold Cir Ste 120, Dakota Dunes, SD 57049-5501

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Family Health Care Of Siouxland Plc — 49 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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