Hematology & Oncology in Iowa
145 licensed hematologist-oncologists practicing in Iowa across 41 cities.
This page republishes public records from the federal NPI Registry, which every licensed U.S. healthcare provider is required to maintain. These are federal-agency records, not a directory we compile.
Source: NPI Registry · last checked
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Click a city to filter the 50 providers shown below. Iowa has providers in 41 cities total — search the full NPI Registry for cities not shown here.
NPI Registry records — Hematology & Oncology in Iowa
28 of 50 shown have disclosed payments in CMS Open Payments (2024)
Showing 50 of 145 federal NPI records, alphabetical by last name. Contact details come directly from the NPI Registry — verify currency with the provider's office. Pharma / device payment disclosures from CMS Open Payments are shown where the physician appears in that federal database.
In 2024, $183 was disclosed to this physician across 9 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($183).
Largest single payer: Mirati Therapeutics, Inc. ($45).
In 2024, $225 was disclosed to this physician across 12 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($225).
Largest single payer: Astellas Pharma US Inc ($42).
Saramma J Alexander, MD
1221 Pleasant St, Ste 100
Des Moines, IA 50309 · (515) 282-2921
License: 21492 (IA)
Josiah An, MD
3333 Silas Creek Pkwy
Winston Salem, NC 27103 · (336) 277-8800
License: 2021-01298 (NC)
Kartik Anand, MD
5950 University Ave Ste 285
West Des Moines, IA 50266 · (515) 875-9850
License: MD-50856 (IA)
In 2024, $7,060 was disclosed to this physician across 17 transactions by pharmaceutical or medical-device companies.
Mostly space rental or facility fees ($4,550) and meals and beverages ($1,028).
Largest single payer: Novocure Inc. ($6,238).
George N Batty, MD
27 Industrial Ave Ste 101
Sanford, ME 04073 · (207) 459-1666
License: MD472001 (PA)
In 2024, $127 was disclosed to this physician across 6 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($127).
Largest single payer: Daiichi Sankyo Inc. ($26).
Robert J Behrens, MD
1221 Pleasant St, Ste 100
Des Moines, IA 50309 · (515) 282-2921
License: MD-34946 (IA)
In 2023, $125 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($125).
Loren D Brown
411 Laurel, Suite A300 Medical Oncology and Hematology
Des Moines, IA 50314 · (515) 247-3970
License: 01574 (IA)
Emily Brugioni, DO
411 Laurel St Ste A300
Des Moines, IA 50314 · (515) 282-2921
License: DO-06086 (IA)
In 2024, $146 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly gifts ($99) and entertainment ($47).
Largest single payer: Pfizer Inc. ($99).
Laxmi Narayana Raju Buddharaju, MD
1111 6th Ave, Level 1
Des Moines, IA 50314 · (515) 643-8735
License: 21789 (NE)
In 2024, $535 was disclosed to this physician across 15 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($445) and gifts ($90).
Largest single payer: E.R. Squibb & Sons, L.L.C. ($136).
Nibash Budhathoki, MBBS
4150 N Mulberry Dr Ste 150
Kansas City, MO 64116 · (913) 588-1227
License: 2026003890 (MO)
In 2024, $1,171 was disclosed to this physician across 65 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($1,156) and gifts ($15).
Largest single payer: E.R. Squibb & Sons, L.L.C. ($184).
Rasa Lilija Buntinas, MD
202 10th Street Se
Cedar Rapids, IA 52403 · (319) 297-2900
License: 31281 (IA)
In 2024, $253 was disclosed to this physician across 13 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($133) and gifts ($120).
Largest single payer: AVEO Pharmaceuticals, Inc. ($120).
John H Burdakin, MD
600 7th St Se, Suite 101
Cedar Rapids, IA 52401 · (319) 558-0322
License: 48592 (CO)
In 2024, $20 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($20).
Largest single payer: AVEO Pharmaceuticals, Inc. ($20).
Margaret McGinn Byrne, MD
200 Hawkins Dr
Iowa City, IA 52242 · (319) 356-5346
License: MD-48271 (IA)
In 2024, $34 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($23) and gifts ($11).
Largest single payer: Servier Pharmaceuticals LLC ($23).
Erin M. Casey, MD
701 10th St Se, Hpcc 3rd Floor
Cedar Rapids, IA 52403 · (319) 363-8303
License: 38936 (IA)
Justin James Chau, MD
975 Port Washington Rd
Grafton, WI 53024
License: 82045 (WI)
Shobha Rani Chitneni, MD
1351 Kimberly Rd, Ste 100
Bettendorf, IA 52722 · (563) 355-7733
License: 30086 (IA)
In 2024, $468 was disclosed to this physician across 20 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($468).
Largest single payer: Janssen Biotech, Inc. ($273).
Vaughan Robert Cipperly, MD
1000 4th St Sw
Mason City, IA 50401 · (641) 428-6300
License: 48051 (IA)
Gustavo Colagiovanni Girotto, MD
200 Hawkins Dr
Iowa City, IA 52242 · (319) 356-2148
License: SP-0334 (IA)
In 2024, $155 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($155).
Largest single payer: Celgene Corporation ($155).
Jonathan Richard Day, MD, PHARMD
200 1st St Sw
Rochester, MN 55905 · (507) 284-2511
License: 76236 (MN)
In 2024, $109 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($109).
Largest single payer: Stryker Corporation ($109).
Maroun E El-Khoury, MD
1225 S Gear Ave, Suite 152
West Burlington, IA 52655 · (319) 753-1220
License: 36404 (IA)
Dean Elhag, MD
5950 University Ave Ste 285
West Des Moines, IA 50266 · (515) 875-9850
License: MD-48538 (IA)
In 2024, $141 was disclosed to this physician across 6 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($141).
Largest single payer: US Oncology Corporate, Inc. ($110).
Rodrigo Brito Erlich, MD
1000 4th St Sw
Mason City, IA 50401 · (641) 428-7000
License: 25MA10216200 (NJ)
In 2023, $18 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($18).
Umar Farooq, MD
200 Hawkins Dr, Department of Internal Medicine
Iowa City, IA 52242 · (319) 356-4422
License: MD-41505 (IA)
In 2024, $159 was disclosed to this physician across 0 transactions by pharmaceutical or medical-device companies.
About 100% ($159) was research funding — payments for clinical-trial work.
Largest single payer: F. Hoffmann-La Roche AG ($159).
James E Feeley, MD
613 E Bloomington St, Ste 100
Iowa City, IA 52245 · (319) 339-3917
License: 24956 (IA)
Nicole Margo Grogan Fleege, MD
200 Hawkins Dr, Department of Internal Medicine
Iowa City, IA 52242 · (319) 356-7831
License: MD-45024 (IA)
Brian P Freeman, MD
411 Laurel St Ste A300
Des Moines, IA 50314 · (515) 282-2921
License: MD-36821 (IA)
Susannah Parker Friemel, MD
1750 E 53rd Street
Davenport, IA 52807 · (563) 345-4325
License: 37397 (IA)
In 2024, $1,356 was disclosed to this physician across 72 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($1,356).
Largest single payer: Janssen Biotech, Inc. ($158).
William Patrick Fusselman, MD
202 10th Street Se
Cedar Rapids, IA 52403 · (319) 297-2900
License: 32439 (IA)
In 2024, $217 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.
Mostly gifts ($110) and entertainment ($107).
Largest single payer: Janssen Biotech, Inc. ($90).
In 2024, $18 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($18).
Largest single payer: Merck Sharp & Dohme LLC ($18).
Tara Michelle Graff, DO
12495 University Ave Ste 200
Clive, IA 50325 · (515) 282-2921
License: DO-04560 (IA)
In 2024, $182,242 was disclosed to this physician across 136 transactions by pharmaceutical or medical-device companies.
$6,363 was research funding (clinical-trial work); the remainder was consulting fees ($102,998) and charitable contributions ($60,075).
Largest single payer: BeiGene USA, Inc. ($45,919).
In 2024, $15 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($15).
Largest single payer: AVEO Pharmaceuticals, Inc. ($15).
In 2024, $98 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($98).
Largest single payer: AbbVie Inc. ($98).
Seema Harichand-Herdt, MD
411 Laurel St Ste A300
Des Moines, IA 50314 · (515) 282-2921
License: MD-44714 (IA)
In 2024, $134 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($134).
Largest single payer: Blueprint Medicines Corporation ($134).
In 2024, $100 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($100).
Largest single payer: Seagen Inc. ($100).
Penny Louise Heinrich, MD
500 E Market St
Iowa City, IA 52245 · (319) 339-3551
License: MD-51633 (IA)
In 2023, $87 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($87).
Mark E. Hermann, MD
350 N Grandview Ave Ste 2300
Dubuque, IA 52001 · (563) 557-9111
License: 30161 (IA)
In 2024, $440 was disclosed to this physician across 21 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($440).
Largest single payer: AstraZeneca Pharmaceuticals LP ($77).
Bradley K Hiatt, DO
411 Laurel St Ste A300
Des Moines, IA 50314 · (515) 282-2921
License: DO-03190 (IA)
In 2023, $104 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly gifts ($104).
Matthew L Hill, DO
1221 Pleasant St, Ste 100
Des Moines, IA 50309 · (515) 282-2921
License: 3410 (IA)
Amy E Hughes, DO
12495 University Ave Ste 200
Clive, IA 50325 · (515) 282-2921
License: DO-03741 (IA)
Showing 50 of 145. Search all on NPI Registry →
Payment totals shown for the latest published program year (2024). Presence of disclosed payments is not, on its own, a conflict of interest. Physicians dispute records directly with CMS (dispute process). How we show this.
Open Payments figures as displayed on . Corrections flow from the manufacturer through CMS and are adopted on our next refresh.
What this page is: a republication of public federal NPI Registry records, filtered to the hematology & oncology taxonomy. It is not a directory we curate, and inclusion is automatic based on each provider's own NPI filing with CMS. Providers who believe their NPI record is inaccurate should update it directly with CMS at npiregistry.cms.hhs.gov; our next refresh adopts the corrected federal record.
Practice info disclaimer: Provider addresses and phone numbers come from the NPI Registry, which providers update at their discretion. Always call ahead to confirm the provider is currently accepting patients and is at the listed address.
Medical disclaimer: This page is not a quality ranking and does not constitute medical advice or endorsement. Choose a provider in consultation with your primary care physician or care team.
Source: NPI Registry (taxonomy: Hematology & Oncology) · Last checked: 2026-04-20