NPPES file of Aug 9, 2026

Mark R. Kroll, D.O.

Emergency Medicine Physician · Green Bay, WI

Mark R. Kroll, D.O. is an emergency medicine physician with a practice address in Green Bay, Wisconsin, and NPI 1124030499, issued on Aug 13, 2006. Check the license (Wisconsin 30436-21, 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
1124030499
Name
Mark R. Kroll
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
30436-21 WI
Self-reported in NPPES; status is on the state search
Practice location
2253 W Mason St, Green Bay, WI 54303
Phone
(920) 327-7000
Enumerated
Aug 13, 2006
Record last updated
May 19, 2026
Medicaid ID
30049600 WI
Medicare enrollment
Enrolled (PECOS I20081110000356); accepts Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 1988
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 emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →

Also registered at 2253 W Mason St

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

  1. Andrew Alexander, M.D.Pediatrics Physician1780737155
  2. Madeline Almond, MDOphthalmology Physician1720098288
  3. Catharine Aune, CRNPNurse Practitioner1437573086
  4. Brianna Baeten, PAPhysician Assistant1194358648
  5. Heidi Bergman, PT, DPTPhysical Therapist1073130670
  6. Joseph Bergmann, M.D.Glaucoma Specialist (Ophthalmology) Physician1265623649

Verify Mark R. Kroll in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 30436-21    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

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66% more Medicare Part D claims than the average emergency medicine physician in 2024

376 Medicare Part D claims for 201 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Mark Kroll376
  2. Specialty average226

Most prescribed

  1. Prednisone48 claims
  2. Doxycycline Monohydrate37 claims
  3. Albuterol Sulfate Hfa15 claims
  4. Nitrofurantoin Mono-Macro15 claims
  5. Diclofenac Sodium13 claims
  6. Erythromycin13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $132.54

2 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Kroll$132.54
  2. Specialty average$953.79

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

Bills Medicare through 2 group practices

  1. Bellin Memorial Hospital IncGreen Bay, WI
  2. Independent Physicians OF Wisconsin LLCLuxemburg, WI

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

Mark R. Kroll among 1,464 emergency medicine physician records in Wisconsin

Mark R. Kroll, D.O. is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 58% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1988 · median 2011 among the 844 with a school on file
  • Record last updated2026 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Wisconsin

There are 1,464 emergency medicine physician records in Wisconsin.

All 1,464 in Wisconsin → Every provider in Green Bay → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Kenneth Johnson, M.D.Green Bay, WI 543031366486458
  2. Timothy Pavek, M.D.Green Bay, WI 543031851321830
  3. Michael Phillips, MDGreen Bay, WI 543031790705879
  4. Mary Rupp, MDGreen Bay, WI 543031407077282
  5. Paul Summerside, MDGreen Bay, WI 543031720009459
  6. Adam Aicher, D.O.Green Bay, WI 543011336280585
  7. Megan BocchicchioGreen Bay, WI 543011932780657
  8. Paul Casey, M.D.Green Bay, WI 543011427031236

Common questions

What is Mark R. Kroll, D.O.'s NPI number?

Mark R. Kroll, D.O.'s National Provider Identifier (NPI) is 1124030499, issued on Aug 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark R. Kroll, D.O. located?

The NPPES record lists a practice address at 2253 W Mason St, Green Bay, WI, 54303. Phone: (920) 327-7000. Providers update this record themselves, so call before visiting.

How can I verify Mark R. Kroll, D.O.'s license?

NPPES lists Wisconsin license number 30436-21, 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.

How much does Mark R. Kroll, D.O. prescribe under Medicare Part D?

In 2024, Mark R. Kroll, D.O. had 376 Medicare Part D claims for 201 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

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.