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Internal Medicine

Jacob Jentzer, MD

Works at hospitals in Albert Lea, MN · Fairmont, MN · Mankato, MN … · Minnesota

Summary

Jacob Jentzer, MD (Internal Medicine) is listed by Medicare at 5 hospitals in Albert Lea, MN, Fairmont, MN and Mankato, MN and other places. NPI 1538334628. 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 Jacob Jentzer, 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
18Years since medical school (graduated 2008)
University Of Rochester School Of Medicine And DentistryMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Jacob Jentzer work at?
Medicare's official clinician data lists Jacob Jentzer at 5 hospitals: Mayo Clinic Health System - Albert Lea and Austin, Mayo Clinic Health System - Fairmont, Mayo Clinic Health System - Mankato, Mayo Clinic Health System in Red Wing and Mayo Clinic Hospital Rochester. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Jacob Jentzer see patients?
Medicare's clinician data lists 13 practice locations, including Mankato, MN, Saint James, MN and Mabel, MN. Call before your visit to confirm the address.
What is Jacob Jentzer's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Jacob Jentzer accept Medicare assignment?
Yes. Medicare's clinician data says Jacob Jentzer 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 Jacob Jentzer?
(507) 625-4031, as listed in official Medicare / NPI Registry data.
What is Jacob Jentzer's NPI number?
1538334628. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jacob Jentzer works

Medicare's Facility Affiliation Data lists Jacob Jentzer 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 Jacob Jentzer is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 13; the Medicare profile lists all.

Group practices

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

  • Mayo Clinic4,956 clinicians in the group
  • The Medical College of Wisconsin Inc2,115 clinicians in the group
  • Mayo Clinic Health System-Southwest Minnesota Region661 clinicians in the group
  • Mayo Clinic Health System-Southeast Minnesota Region551 clinicians in the group
  • Mayo Clinic Health System-Southwest Wisconsin Region Inc534 clinicians in the group
  • Mayo Clinic Health System-Fairmont155 clinicians in the group

Specialties

Find other Internal Medicine doctors in Minnesota →

Other internal medicine doctors in Mankato

Clinicians with the same Medicare primary specialty in Mankato, MN — not a recommendation.

All internal medicine doctors in Mankato →

Clinician information

CredentialMD
Medical schoolUniversity Of Rochester School Of Medicine And Dentistry
Graduation year2008
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538334628
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