Clinicians affiliated with Mitchell County Regional Health

Critical Access Hospitals · Government - Federal · 616 North Eighth Street, Osage, IA 50461 · CCN 161323

Affiliation snapshotNovember 2, 2026CMS Doctors and Clinicians Facility Affiliation file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

60 clinicians affiliated with Mitchell County Regional Health are in the 2024 Medicare Part B data (77 listed in the affiliation file).

Each clinician's exact figures are in their Physician Report, from their page. View sample report · Already purchased? Open your report (earlier Local report and passes)

Affiliated clinicians by specialty, 2024

All specialties · Diagnostic Radiology (10) · Family Practice (7) · Nurse Practitioner (7) · Cardiology (5) · Physician Assistant (5) · Certified Registered Nurse Anesthetist (CRNA) (3) · Orthopedic Surgery (3) · Internal Medicine (2) · Otolaryngology (2) · Allergy/ Immunology (1) · Dermatology (1) · Emergency Medicine (1) · General Surgery (1) · Infectious Disease (1) · Interventional Cardiology (1) · Interventional Pain Management (1) · Nephrology (1) · Neurosurgery (1) · Ophthalmology (1) · Pathology (1) · Physical Medicine and Rehabilitation (1) · Podiatry (1) · Psychiatry (1) · Radiation Oncology (1) · Sleep Medicine (1)

Clinicians affiliated with Mitchell County Regional Health, 2024

Alphabetical by last name; 60.

NameSpecialtyCity
Kelli Badker, ARNPNurse PractitionerMason City, IA
Chad H Boyer, PA-CPhysician AssistantMason City, IA
Nicholas Broadbent, D.O.Diagnostic RadiologyMason City, IA
Brett Carlson, M.D.CardiologyMason City, IA
Alexxis D Cary, DPMPodiatryKansas City, MO
Jennifer Castle, ARNPNurse PractitionerMason City, IA
Samuel J Congello, D.O.Interventional CardiologyMason City, IA
Sandra Leticia R Crosara, MDInfectious DiseaseMason City, IA
Sepideh Darbandi, DOCardiologyMason City, IA
Henry R Diggelmann, M.D.OtolaryngologyMason City, IA
Michael DunlayDiagnostic RadiologyMason City, IA
Robert K Giles, PA-CPhysician AssistantMason City, IA
Gregory Grimberg, MDGeneral SurgeryMason City, IA
Denisa Hagau, M.D.CardiologyMason City, IA
Daniel L Hamilos, M.D.Allergy/ ImmunologyMason City, IA
Benson Hargens, MDFamily PracticeOsage, IA
Ryan M Holthaus, M.D.Diagnostic RadiologyMason City, IA
Mark I Hong, M.DNephrologyMason City, IA
Robin E Howe, CRNACertified Registered Nurse Anesthetist (CRNA)Minneapolis, MN
Anthony D Johnson, C.R.N.A.Certified Registered Nurse Anesthetist (CRNA)Osage, IA
Darron M Jones, MDOrthopedic SurgeryMason City, IA
Lisa A Kapler, MDFamily PracticeRockford, IA
Ronald F Kloc, D.O.Interventional Pain ManagementMason City, IA
Mark E Lassise, M.D.PsychiatryMason City, IA
Daniel Lee, M.D.OtolaryngologyMason City, IA
Phillip C Lee, M.D.Sleep MedicineMason City, IA
Anna Levan, ARNPNurse PractitionerMason City, IA
Benjamin A Levinson, CRNACertified Registered Nurse Anesthetist (CRNA)Decorah, IA
Yen Chen Liu, MDDermatologyMason City, IA
Timothy J Lucas, M.D.Diagnostic RadiologyMason City, IA
William D Matthews, M.D.Diagnostic RadiologyMason City, IA
Daniel G Miller, M.D.Emergency MedicineIowa City, IA
Jeffrey D Nasstrom, DOFamily PracticeOsage, IA
Andrea NicholsonNurse PractitionerMason City, IA
Joseph J Ocel, M.D.Diagnostic RadiologyMason City, IA
Solomon M Ondoma, M.B., B.CH, MDNeurosurgeryMason City, IA
Kevin P Orcutt, MDRadiation OncologyMason City, IA
Divyesh G Patel, M.D.Diagnostic RadiologyValparaiso, IN
Suraj G Pazhoor, MDFamily PracticeMason City, IA
Erin C Peterson, DOPhysical Medicine and RehabilitationMason City, IA
Megan R Peterson, DOFamily PracticeOsage, IA
John B Pflugi, DOInternal MedicineMason City, IA
Sarah Prahm, APRNNurse PractitionerMason City, IA
Mihail Radulescu, MDOrthopedic SurgeryMason City, IA
Richard E Rattay, M.D.Orthopedic SurgeryMason City, IA
Carrissa Riggs, PAPhysician AssistantMason City, IA
Brandt M Riley, DOOphthalmologyMason City, IA
Kelly D Ross, MDFamily PracticeSaint Ansgar, IA
Kyle W Ryan, PAPhysician AssistantMason City, IA
Michael J Sarik, D.O.CardiologyMason City, IA
Santosh Shah, MDDiagnostic RadiologyHouston, TX
Katie Shannon, DNPNurse PractitionerMason City, IA
Nicole Sheffield, ARNPNurse PractitionerMason City, IA
Ryan L Smith, M.D.Diagnostic RadiologyMason City, IA
Bryan M Spalding, MDCardiologySan Diego, CA
Douglas T Summerfield, MDInternal MedicineMason City, IA
Gary W Swenson, M.D.Diagnostic RadiologyMason City, IA
John T Swisher IV, DO, CAQ, FAAFPFamily PracticeMason City, IA
Gregg D Vanderwaerdt, PA-CPhysician AssistantRochester, MN
Jadon S Wiese, MDPathologyIowa City, IA

Affiliation comes from the CMS Doctors and Clinicians Facility Affiliation file, hospital rows only; name, address and type from the CMS Hospital General Information file. CMS does not publish an end-of-year archive of the affiliation file, so the current snapshot is applied to the latest data year. A clinician listed with several hospitals or groups appears on each of their pages. How hospital pages are built