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Internal Medicine

John Carstensen, MD

Works at hospitals in Des Moines, IA · Iowa

Summary

John Carstensen, MD (Internal Medicine) is listed by Medicare at 1 hospital in Des Moines, IA. NPI 1851378012. 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 John Carstensen, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
26Years since medical school (graduated 2000)
University Of Iowa, Rj & L Carver College Of MedicineMedical school
MaleGender (as listed)
Iowa Physicians Clinic Medical FoundationGroup practice (+1 more)

Quick answers

Which hospitals does John Carstensen work at?
Medicare's official clinician data lists John Carstensen at 1 hospital: UnityPoint Health - Des Moines Iowa Methodist Medi…. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Carstensen see patients?
Medicare's clinician data lists 2 practice locations, including Des Moines, IA and Ankeny, IA. Call before your visit to confirm the address.
What is John Carstensen's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does John Carstensen accept Medicare assignment?
Yes. Medicare's clinician data says John Carstensen 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.
Does John Carstensen offer telehealth?
Medicare's clinician data says John Carstensen offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for John Carstensen?
(515) 241-8221, as listed in official Medicare / NPI Registry data.
What is John Carstensen's NPI number?
1851378012. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John Carstensen works

Medicare's Facility Affiliation Data lists John Carstensen 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 John Carstensen is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John Carstensen as a member of these groups (CMS data updated 2026-10-02).

  • Iowa Physicians Clinic Medical Foundation1,246 clinicians in the group
  • Tidd-Krafft Occupational and Physical Therapy PA30 clinicians in the group

Specialties

Find other Internal Medicine doctors in Iowa →

Other internal medicine doctors in Des Moines

Clinicians with the same Medicare primary specialty in Des Moines, IA — not a recommendation.

All internal medicine doctors in Des Moines →

Clinician information

CredentialMD
Medical schoolUniversity Of Iowa, Rj & L Carver College Of Medicine
Graduation year2000
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1851378012
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