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

Mark M Zittergruen, MD

Individual provider Pediatrics Physician · NPI 1851312557

Mark M Zittergruen, MD is a Pediatric Medicine in Cedar Rapids, Iowa. Graduated from University of Iowa, Rj & L Carver College of Medicine in 1988, 38 years ago. Practices with Mercy Medical Center, a 303-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
38
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
IA
In the registry since
2006
Specialties on file
2
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

1026 A Ave NE Ste 5000
Cedar Rapids, IA 52402-5036
Phone: (319) 368-5757
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X · Licence 28303 (IA)
Pediatrics Physician Taxonomy 208000000X · Licence 28303 (IA)

Record details

NPI number1851312557
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 21, 2006
Last updated in NPPESOctober 13, 2011

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Mercy Medical Center — 303 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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