NPPES file of Aug 9, 2026

Jacob Colin Jentzer, M.D.

Critical Care Medicine (Internal Medicine) Physician · Milwaukee, WI

Jacob Colin Jentzer, M.D. is a critical care medicine (internal medicine) physician with a practice address in Milwaukee, Wisconsin, and NPI 1538334628, issued on Apr 29, 2008. Check the license (Wisconsin 76161-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538334628
Name
Jacob Colin Jentzer
Credential
M.D.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License numbers
76161-020 WI
76161 WI
59441 MN
Self-reported in NPPES; status is on the state search
Practice location
9200 W Wisconsin Ave, Milwaukee, WI 53226
Phone
(414) 805-6000
Enumerated
Apr 29, 2008
Record last updated
Aug 5, 2026
Fax
(414) 805-6280
Medicaid ID
1538334628 WI
Medicare enrollment
Enrolled (PECOS I20150520001985); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest critical care medicine (internal medicine) physician records → All 134 in Wisconsin → Look up another NPI →

Also registered at 9200 W Wisconsin Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shameem Aadam, RPHPharmacist1760755680
  2. Abubaker Abdalla, MDHospitalist Physician1194187617
  3. Sameem Abedin, MDHematology & Oncology Physician1063641157
  4. Lolia Abibo, M.D.Hospitalist Physician1912359795
  5. Haisam Abid, MBBSHospitalist Physician1578083184
  6. Faith Abodunrin, MDHematology & Oncology Physician1437768769

Verify Jacob Colin Jentzer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 76161-020    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $192.09

5 payments; by number, the most common kind was food and beverage; the largest payer was Getinge USA Sales, LLC. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jacob Jentzer$192.09
  2. Specialty average$2,958.68

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 8 group practices

  1. Mayo ClinicRochester, MN
  2. Mayo Clinic Health System-FairmontFairmont, MN
  3. Mayo Clinic Health System-Lake CityRochester, MN
  4. Mayo Clinic Health System-Southeast Minnesota RegionRochester, MN
  5. Mayo Clinic Health System-Southwest Minnesota RegionMankato, MN
  6. Mayo Clinic Health System-Southwest Wisconsin Region IncRochester, MN
  7. Mayo Clinic Health System-St JamesSaint James, MN
  8. Winneshiek Medical CenterMabel, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jacob Colin Jentzer among 134 critical care medicine (internal medicine) physician records in Wisconsin

Jacob Colin Jentzer, M.D. is one of 134 critical care medicine (internal medicine) physician records with a practice address in Wisconsin. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 40% of them.

  • NPI issued2008 · 40% of these records are older, 54% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2008 · median 2008 among the 108 with a school on file
  • Record last updated2026 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Wisconsin

There are 134 critical care medicine (internal medicine) physician records in Wisconsin.

All 134 in Wisconsin → Every provider in Milwaukee → Critical Care Medicine (Internal Medicine) Physician nationwide →

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Christofer Barth, MDMilwaukee, WI 532261609839554
  2. Mrigank Gupta, MDMilwaukee, WI 532261053816488
  3. Prem Kandiah, MDMilwaukee, WI 532261972684082
  4. John Roddy, M.D.Wauwatosa, WI 532261598150120
  5. Lauren Sesemann, DOMilwaukee, WI 532261174084305
  6. Amit Taneja, M.D.Milwaukee, WI 532261639115090
  7. Michael Peliska, MDWest Allis, WI 532271861923765
  8. Paul Stevenson, M.D.West Allis, WI 532271386021970

Common questions

What is Jacob Colin Jentzer, M.D.'s NPI number?

Jacob Colin Jentzer, M.D.'s National Provider Identifier (NPI) is 1538334628, issued on Apr 29, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Jacob Colin Jentzer, M.D. located?

The NPPES record lists a practice address at 9200 W Wisconsin Ave, Milwaukee, WI, 53226. Phone: (414) 805-6000. Providers update this record themselves, so call before visiting.

How can I verify Jacob Colin Jentzer, M.D.'s license?

NPPES lists Wisconsin license number 76161-020, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.