NPPES file of Aug 9, 2026

Matthew Robert Kroll

Hematology & Oncology Physician · Iowa City, IA

Matthew Robert Kroll is a hematology & oncology physician with a practice address in Iowa City, Iowa, and NPI 1629630116, issued on Jul 3, 2019. Check the license (Iowa R-12686, as entered in NPPES) on the Iowa Board of Medicine; 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
1629630116
Name
Matthew Robert Kroll
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
R-12686 IA
402247 IL
Self-reported in NPPES; status is on the state search
Practice location
200 Hawkins Dr, Iowa City, IA 52242
Phone
(319) 353-7800
Enumerated
Jul 3, 2019
Record last updated
Jul 6, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest hematology & oncology physician records → All 90 in Iowa → Look up another NPI →

Also registered at 200 Hawkins Dr

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

  1. Helena Aaberg, MDAnesthesiology Physician1689301558
  2. Abdullah Abbasi, MDGastroenterology Physician1932944204
  3. Mary Jo Abbott, RPHPharmacist1841325875
  4. Francois Abboud, MDCardiovascular Disease Physician1598753113
  5. Abdalla Abdalla, MBBCHAnatomic Pathology & Clinical Pathology Physician1518859826
  6. Sameh AbdallaAnatomic Pathology & Clinical Pathology Physician1437902160

Verify Matthew Robert Kroll in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license R-12686    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 Iowa license search

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96% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

31 Medicare Part D claims for 18 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.

  1. Matthew Kroll31
  2. Specialty average877

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.

Matthew Robert Kroll among 90 hematology & oncology physician records in Iowa

Matthew Robert Kroll is one of 90 hematology & oncology physician records with a practice address in Iowa. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 86% of them.

  • NPI issued2019 · 86% of these records are older, 10% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2023 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Iowa

There are 90 hematology & oncology physician records in Iowa.

All 90 in Iowa → Every provider in Iowa City → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Daniel Berg, MDIowa City, IA 522421841289790
  2. Thomas Carlisle, MD PHDIowa City, IA 522421134116288
  3. Thomas Carter, MD PHDIowa City, IA 522421093703951
  4. Yuya Hagiwara, MDIowa City, IA 522421083811087
  5. Katarzyna Jamieson, MDIowa City, IA 522421376582205
  6. Mark Karwal, MDIowa City, IA 522421891770616
  7. Douglas Laux, MDIowa City, IA 522421295946218
  8. Brian Link, MDIowa City, IA 522421487635793

Common questions

What is Matthew Robert Kroll's NPI number?

Matthew Robert Kroll's National Provider Identifier (NPI) is 1629630116, issued on Jul 3, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Robert Kroll located?

The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 353-7800. Providers update this record themselves, so call before visiting.

How can I verify Matthew Robert Kroll's license?

NPPES lists Iowa license number R-12686, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Matthew Robert Kroll prescribe under Medicare Part D?

In 2024, Matthew Robert Kroll had 31 Medicare Part D claims for 18 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.