Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Interventional Cardiology

Ryan D. Hollenbeck, MD

Works at hospitals in Anamosa, IA · Cedar Rapids, IA · Iowa City, IA … · Iowa

Summary

Ryan D. Hollenbeck, MD (Interventional Cardiology) is listed by Medicare at 5 hospitals in Anamosa, IA, Cedar Rapids, IA and Iowa City, IA and other places. NPI 1689878175. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ryan D. Hollenbeck, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Interventional CardiologyPrimary specialty
YesAccepts Medicare assignment
19Years since medical school (graduated 2007)
University Of Iowa, Rj & L Carver College Of MedicineMedical school
MaleGender (as listed)
Mercy Medical CenterGroup practice

Quick answers

Which hospitals does Ryan D. Hollenbeck work at?
Medicare's official clinician data lists Ryan D. Hollenbeck at 5 hospitals: Jones Regional Medical Center, Mercy Medical Center - Cedar Rapids, St Lukes Hospital, University of Iowa Hospital & Clinics and Virginia Gay Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ryan D. Hollenbeck see patients?
Medicare's clinician data lists 6 practice locations, including Tama, IA, Vinton, IA and Cedar Rapids, IA. Call before your visit to confirm the address.
What is Ryan D. Hollenbeck's specialty?
Medicare lists Interventional Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology) and Internal Medicine.
Does Ryan D. Hollenbeck accept Medicare assignment?
Yes. Medicare's clinician data says Ryan D. Hollenbeck accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Ryan D. Hollenbeck?
(319) 398-6747, as listed in official Medicare / NPI Registry data.
What is Ryan D. Hollenbeck's NPI number?
1689878175. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ryan D. Hollenbeck works

Medicare's Facility Affiliation Data lists Ryan D. Hollenbeck at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Ryan D. Hollenbeck is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Ryan D. Hollenbeck as a member of this group (CMS data updated 2026-10-02).

  • Mercy Medical Center305 clinicians in the group

Specialties

Find other Interventional Cardiology doctors in Iowa →

Other interventional cardiologists in Iowa

Clinicians with the same Medicare primary specialty in Iowa — not a recommendation.

All interventional cardiologists in Iowa →

Clinician information

CredentialMD
Medical schoolUniversity Of Iowa, Rj & L Carver College Of Medicine
Graduation year2007
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1689878175
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians