Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark P Iltis, MD

Individual provider Family Medicine Physician · NPI 1659369353

Mark P Iltis, MD is registered under Family Practice in Durant, Iowa. Graduated from University of Iowa, Rj & L Carver College of Medicine in 1989, 37 years ago. Practices with Genesis Health System, a 220-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
37
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
IA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

619 5th St
Durant, IA 52747
Phone: (563) 785-4487
Fax: (563) 785-6681
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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 27823 (IA)

Record details

NPI number1659369353
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 7, 2005
Last updated in NPPESMay 27, 2021
Certification dateMay 27, 2021

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Genesis Health System — 220 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients405
Services billed 1,029 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Genesis Hlth System Dba Genesis Mdl Ctr-Illini Hospital · Silvis, IL

Colleagues at Genesis Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 220 clinicians in the practice; 12 are shown here.

Other providers in Durant