Internal Medicine Doctors in Iowa
Data updated monthly · Last refresh October 2026
865 Internal Medicine providers practice in Iowa, including 64 (7%) offering telehealth. The largest concentration is in Des Moines. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
865providers
64telehealth
Des Moinestop city
Internal Medicine by city in Iowa
Choose a city to see providers there.
Internal Medicine providers in Iowa
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Hersi MoallinMason City, IA · No drug or device payments recorded (2025) ·
(641) 428-6000 Dr. Jacob Obholz, DOMason City, IA · $80 in drug and device payments (2025) ·
(641) 428-5700 Dr. Jake Mullenbach, DOMason City, IA · No drug or device payments recorded (2025) ·
(641) 428-6000 Dr. Janice Kirsch, MDMason City, IA · No drug or device payments recorded (2025) · Telehealth ·
(641) 422-6000 Dr. Jashan Gill, MDMason City, IA · $1,351 in drug and device payments (2025) ·
(641) 494-5300 Dr. J.d. Thoreson, M.D.Mason City, IA · No drug or device payments recorded (2025) ·
(641) 494-5350 Dr. John Pflugi, DOMason City, IA · No drug or device payments recorded (2025) ·
(641) 428-6900 Dr. Jose Morales Oliva, MDMason City, IA · No drug or device payments recorded (2025) ·
(641) 428-5700 Dr. Luke Carlson, MDMason City, IA · $38 in drug and device payments (2025) ·
(641) 428-5700 Dr. Mark Johnson, MDMason City, IA · $28,199 in drug and device payments (2025) ·
(641) 428-7799 Dr. Mary Zahnle, MDIMason City, IA · $62 in drug and device payments (2025) ·
(641) 428-5700 Dr. Matthew Hardee, D.O.Mason City, IA · $21 in drug and device payments (2025) ·
(641) 428-5700 Dr. Melissa Frame, MDMason City, IA · No drug or device payments recorded (2025) ·
(641) 428-6000 Dr. Muhammad Tahir, M.D.Mason City, IA · $1,032 in drug and device payments (2025) ·
(641) 494-5300 Dr. Neena Singh, M.D.Mason City, IA · No drug or device payments recorded (2025) ·
(641) 428-7951 Dr. Nithin Karnan, MDMason City, IA · No drug or device payments recorded (2025) ·
(641) 428-5700 Dr. Patrick Dunlay, DOMason City, IA · No drug or device payments recorded (2025) ·
(641) 422-6999 Dr. Phillip Alscher, MDMason City, IA · No drug or device payments recorded (2025) ·
(641) 422-6999 Dr. Pratha Shettigar, MDMason City, IA · $79 in drug and device payments (2025) ·
(641) 428-5700 Dr. Richard Trimble, MDMason City, IA · No drug or device payments recorded (2025) ·
(641) 422-6999 Dr. Smitha Kanak, MDMason City, IA · No drug or device payments recorded (2025) ·
(641) 494-3000 Dr. Tanvi Deshpande, MDMason City, IA · $64 in drug and device payments (2025) ·
(641) 428-5700 Dr. Umer Mukhtar, MDMason City, IA · No drug or device payments recorded (2025) · Telehealth ·
(641) 428-6615 Dr. Vaughan Cipperly, MDMason City, IA · $278 in drug and device payments (2025) ·
(641) 428-6300 Dr. William Riesen, MDMason City, IA · No drug or device payments recorded (2025) ·
(641) 428-5700 Dr. Yuvaraj Thangaraj, MDMason City, IA · No drug or device payments recorded (2025) ·
(641) 428-6999 Dr. Zachary Fuller, DOMason City, IA · $5 in drug and device payments (2025) ·
(641) 428-5700 Dr. Alfred Savage, D.O.Mount Pleasant, IA · No drug or device payments recorded (2025) ·
(319) 385-4915 Dr. Fadi Ghadban, MDMt Pleasant, IA · No drug or device payments recorded (2025) ·
(319) 385-3141 Dr. John Bennett, M.D.Mt Pleasant, IA · No drug or device payments recorded (2025) ·
(319) 385-6700 Dr. Thomas Bainbridge, M.D.Mt Pleasant, IA · No drug or device payments recorded (2025) ·
(319) 385-6700 Dr. Ceren Durer, MDMuscatine, IA · No drug or device payments recorded (2025) ·
(563) 262-4111 Dr. James Kwirant, M.D.Muscatine, IA · No drug or device payments recorded (2025) ·
(563) 262-4111 Dr. Maitreyi Janarthanan, MDMuscatine, IA · No drug or device payments recorded (2025) ·
(563) 263-1903 Dr. Manasi Nadkarni, MDMuscatine, IA · No drug or device payments recorded (2025) ·
(563) 262-4111 Dr. Melinda Smith, M.D.Muscatine, IA · $100 in drug and device payments (2025) ·
(563) 262-4111 Dr. Robert Weis, M.D.Muscatine, IA · $29 in drug and device payments (2025) ·
(563) 262-4111 Dr. Tze Chan, DONewton, IA · $1,469 in drug and device payments (2025) ·
(641) 792-2112 Dr. Leslie Riley, MDNorth Liberty, IA · No drug or device payments recorded (2025) ·
(319) 626-5680 Dr. Pradeep Sarswat, MDOakdale, IA · No drug or device payments recorded (2025) ·
(319) 626-4414 Dr. Karen Spahr, DOOskaloosa, IA · No drug or device payments recorded (2025) ·
(641) 672-9930 Dr. Kyle Witt, MDOskaloosa, IA · $21 in drug and device payments (2025) ·
(641) 672-3100 Dr. Ronald Collins, M.D.Oskaloosa, IA · No drug or device payments recorded (2025) ·
(641) 672-3394 Dr. Donald Conklin, M.D.Ottumwa, IA · No drug or device payments recorded (2025) ·
(641) 984-2341 Dr. Florita Henderson, MD Dr. Kenneth Wayne, MDOttumwa, IA · No drug or device payments recorded (2025) ·
(641) 682-4594 Dr. Lani Joelle Go, M.D.Ottumwa, IA · No drug or device payments recorded (2025) ·
(641) 684-2300 Dr. Peter Reiter, MDOttumwa, IA · No drug or device payments recorded (2025) ·
(641) 683-0800 Dr. Robert Blommer, MDOttumwa, IA · No drug or device payments recorded (2025) ·
(641) 683-0800 Conditions Internal Medicine providers in Iowa commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in Iowa?There are 865 Internal Medicine providers with active NPI records practicing in Iowa, according to federal NPPES data refreshed monthly.
Do Internal Medicine providers in Iowa offer telehealth?Yes. 64 of the 865 Internal Medicine providers in Iowa (about 7%) report offering telehealth services in CMS data.
Which cities in Iowa have the most Internal Medicine providers?Des Moines (224), Iowa City (210), Mason City (39) have the highest concentration of Internal Medicine providers in Iowa.
How many Internal Medicine providers in Iowa received drug or device company payments?234 of 865 Internal Medicine providers in Iowa (27%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in Iowa treat?Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Which hospitals do Internal Medicine Doctors in Iowa work at?According to CMS facility affiliation records, the Iowa hospitals where the most Internal Medicine Doctors hold privileges are Unitypoint Health - Des Moines Iowa Methodist Medi in Des Moines; Mercyone Des Moines Medical Center in Des Moines; University of Iowa Hospital & Clinics in Iowa City.
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