NPPES file of Aug 9, 2026

William Patrick Fusselman, MD

Hematology & Oncology Physician · Cedar Rapids, IA

William Patrick Fusselman, MD is a hematology & oncology physician with a practice address in Cedar Rapids, Iowa, and NPI 1659356228, issued on Dec 7, 2005. Check the license (Iowa 32439, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659356228
Name
William Patrick Fusselman
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
32439 IA
Self-reported in NPPES; status is on the state search
Practice location
202 10TH Street SE, Cedar Rapids, IA 52403
Phone
(319) 297-2900
Enumerated
Dec 7, 2005
Record last updated
Aug 25, 2025
Fax
(319) 297-2969
Medicaid ID
2182816 IA
Medicare enrollment
Enrolled (PECOS I20040712000138); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 1995
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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Also registered at 202 10TH Street SE

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

  1. Sylvia Anspach, ARNPAdult Health Nurse Practitioner1417931478
  2. Mark Barnett, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1821096660
  3. Robert Brimmer, MDSurgery Physician1376541300
  4. Michael Brooks, MDRheumatology Physician1760480289
  5. Rasa Buntinas, MDHematology & Oncology Physician1902880966
  6. Regina Burke, OTR/L,CHTOccupational Therapist1871549071

Verify William Patrick Fusselman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 32439
    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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82% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,598 Medicare Part D claims for 259 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 45 claims were for opioids.

  1. William Fusselman1,598
  2. Specialty average877

Most prescribed

  1. Anastrozole314 claims
  2. Hydroxyurea151 claims
  3. Eliquis130 claims
  4. Levothyroxine Sodium112 claims
  5. Acyclovir78 claims
  6. Xarelto71 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 75.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score59.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%93.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $217.29

8 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Fusselman$217.29
  2. Specialty average$7,481.41

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

Bills Medicare through one group practice

  1. Physicians Clinic OF Iowa PCCedar Rapids, IA

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

Hematology & Oncology Physician providers in Iowa

There are 90 hematology & oncology physician records in Iowa.

Other hematology & oncology physician records in Iowa

  1. Anoop Aggarwal, M.D.Clinton, IA1902864739
  2. Raafat Alameddine, MDIowa City, IA1740842418
  3. Saramma Alexander, MDDes Moines, IA1780645135
  4. Kartik Anand, MDWest Des Moines, IA1164863841
  5. Daniel Berg, MDIowa City, IA1841289790
  6. Loren BrownDes Moines, IA1609837509
  7. Rasa Buntinas, MDCedar Rapids, IA1902880966
  8. Thomas Carlisle, MD PHDIowa City, IA1134116288
  9. Thomas Carter, MD PHDIowa City, IA1093703951
  10. Shobha Chitneni, M.D.Bettendorf, IA1184684987

Common questions

What is William Patrick Fusselman, MD's NPI number?

William Patrick Fusselman, MD's National Provider Identifier (NPI) is 1659356228, issued on Dec 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William Patrick Fusselman, MD located?

The NPPES record lists a practice address at 202 10TH Street SE, Cedar Rapids, IA, 52403. Phone: (319) 297-2900. Providers update this record themselves, so call before visiting.

How can I verify William Patrick Fusselman, MD's license?

NPPES lists Iowa license number 32439, 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 William Patrick Fusselman, MD prescribe under Medicare Part D?

In 2024, William Patrick Fusselman, MD had 1,598 Medicare Part D claims for 259 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is William Patrick Fusselman, MD's MIPS final score?

The 2023 MIPS final score is 75.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.

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.