Jacob Colin Jentzer, M.D.

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

76161-020 Issued in WI

Practice address

9200 W Wisconsin Ave
Milwaukee, WI 53226-3522

Phone

(414) 805-6000

Fax

(414) 805-6280

NPI assigned

Apr 29, 2008

Last updated

Aug 5, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MN, IA, WI3 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 3

Specialty

Internal Medicine

Education

University of Rochester School of Medicine and Dentistry, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mayo Clinic Health System-Southwest Minnesota RegionGroup PAC ID 4688585771, shared by 6 NPIs, 658 clinicians

Mayo Clinic Health System-St JamesGroup PAC ID 9537170352, shared by 3 NPIs, 77 clinicians

Winneshiek Medical CenterGroup PAC ID 4688582935, 99 clinicians

Mayo Clinic Health System-Southwest Wisconsin Region IncGroup PAC ID 0345152443, 539 clinicians

Mayo Clinic Health System-Lake CityGroup PAC ID 1951213487, shared by 4 NPIs, 70 clinicians

Mayo Clinic Health System-Southeast Minnesota RegionGroup PAC ID 4385556703, shared by 9 NPIs, 550 clinicians

Mayo ClinicGroup PAC ID 6507778255, 4,829 clinicians

Mayo Clinic Health System-FairmontGroup PAC ID 4981694981, 156 clinicians

The Medical College of Wisconsin IncGroup PAC ID 2668384371, 2,092 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mayo Clinic Hospital Rochester Hospital, Rochester, MN, CCN 240010
• Mayo Clinic Health System - Mankato Hospital, Mankato, MN, CCN 240093
• Mayo Clinic Health System - Albert Lea and Austin Hospital, Albert Lea, MN, CCN 240043
• Mayo Clinic Health System in Red Wing Hospital, Red Wing, MN, CCN 240018
• Mayo Clinic Health System - Fairmont Hospital, Fairmont, MN, CCN 240166

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jjentzer135712@ehrdirect.mayoclinicmsg.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Mayo Clinic Health System-Southwest Wisconsin Region, Inc.

  dba Mayo Clinic Health System - La Crosse

  • Multi-Specialty Clinic/Center
  • La Crosse, WI
  • NPI 1629056049

  MN

  Medicare reassignment Care Compare group NPD
• Mayo Clinic

  • Multi-Specialty Clinic/Center
  • Rochester, MN
  • NPI 1922074434
  Medicare reassignment Care Compare group NPD
• Mayo Clinic Health System-Fairmont

  • Multi-Specialty Clinic/Center
  • Fairmont, MN
  • NPI 1366410862
  Medicare reassignment Care Compare group NPD
• Winneshiek Medical Center

  dba WinnMed Mabel Clinic

  • Primary Care Clinic/Center
  • Mabel, MN
  • NPI 1093857393
  Medicare reassignment Care Compare group NPD
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  dba Mayo Clinic Health System-Menomonie

  • Critical Access Hospital
  • Menomonie, WI
  • NPI 1154372944
  Medicare reassignment NPD
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  dba Mayo Clinic Health System in Eau Claire

  • Multi-Specialty Clinic/Center
  • Eau Claire, WI
  • NPI 1235588831

  MN

  Medicare reassignment NPD
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  dba Mayo Clinic Health System-Bloomer

  • Critical Access Hospital
  • Bloomer, WI
  • NPI 1700837812
  Medicare reassignment NPD
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  dba Mayo Clinic Health System-Barron

  • Critical Access Hospital
  • Barron, WI
  • NPI 1740239557
  Medicare reassignment NPD
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  dba Mayo Clinic Health System-Oakridge, Inc.

  • Critical Access Hospital
  • Osseo, WI
  • NPI 1912958026
  Medicare reassignment NPD
• Mayo Clinic Health System-Southwest Wisconsin Region, Inc.

  dba Franciscan Healthcare - Sparta

  • Critical Access Hospital
  • Sparta, WI
  • NPI 1841278637
  Medicare reassignment NPD
• Mayo Clinic Health System-Lake City

  • Multi-Specialty Clinic/Center
  • Lake City, MN
  • NPI 1164463659
  Medicare reassignment NPD
• Mayo Clinic Health System-Lake City

  • Critical Access Hospital
  • Lake City, MN
  • NPI 1538113022
  Medicare reassignment NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Mayo Clinic Health System-Southeast Minnesota Region

  dba Mayo Clinic Health System-Red Wing

  • General Acute Care Hospital
  • Red Wing, MN
  • NPI 1164400024
  Care Compare affiliation Name & address match
• Mayo Clinic Health System-Fairmont

  • General Acute Care Hospital
  • Fairmont, MN
  • NPI 1821066499
  Care Compare affiliation
• Mayo Clinic Health System-Southeast Minnesota Region

  dba Mayo Clinic Health System-Albert Lea and Austin

  • General Acute Care Hospital
  • Albert Lea, MN
  • NPI 1346258100
  Care Compare affiliation
• Mayo Clinic Health System-Southwest Minnesota Region

  dba Mayo Clinic Health System - Mankato

  • General Acute Care Hospital
  • Mankato, MN
  • NPI 1154302487
  Care Compare affiliation
• Mayo Clinic Hospital-Rochester

  • General Acute Care Hospital
  • Rochester, MN
  • NPI 1841266194
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1209427200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785888000000",
    "number": "1538334628",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-805-6000",
            "fax_number": "414-805-6280"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-805-6000",
            "fax_number": "414-805-6280"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "200 1st St SW",
            "address_purpose": "LOCATION",
            "city": "Rochester",
            "state": "MN",
            "postal_code": "559050001",
            "country_code": "US",
            "telephone_number": "585-313-9764",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JENTZER",
        "first_name": "JACOB",
        "middle_name": "COLIN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-04-29",
        "last_updated": "2026-08-05",
        "certification_date": "2026-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "WI",
            "license": "76161",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MN",
            "license": "59441",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "WI",
            "license": "76161-020",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1538334628",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kristin Kay Jensen, RN
• Mark Jensen, LCSW
• Theodore Michael Jensen
• Jeannette Justine Jenson, LPN
• Kimberly E Jenson, PHARMD
• Hoonbae Jeon, M.D.
• Matthew Jeranek, M.D.
• Nyla J Jereb, PHARM.D. RPH
• Jeremiah Johnson
• Jeremias B. Vinluan M.D. S.C.

• Critical Care Medicine (Internal Medicine) Physician in Milwaukee, WI
• Providers in Milwaukee, WI by specialty
• Critical Care Medicine (Internal Medicine) Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 5, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.