There are 15 Internal Medicine clinicians in Mason City, IA in Medicare’s data, ranked by the number of Medicare services they provide.
Internal Medicine clinicians in Mason City
| Clinician | Experience | Telehealth | Medicare patients | Assignment |
|---|---|---|---|---|
| William Riesen, MD | 33 yrs | — | 1,815 | Accepts |
| Janice Kirsch, MD | 37 yrs | Yes | 747 | Accepts |
| Patrick Dunlay, DO | — | — | 677 | Accepts |
| Jonas Kwiatkowski, MD | 10 yrs | — | 404 | Accepts |
| Etee Patel, MD | 7 yrs | — | 322 | Accepts |
| Fnu Dayawa Da Agoons, MD | 13 yrs | — | 462 | Accepts |
| Amy Tesar, DO | 24 yrs | — | 260 | Accepts |
| Umer Mukhtar, MD | 15 yrs | Yes | 565 | Accepts |
| Douglas Summerfield, MD | 19 yrs | — | 217 | Accepts |
| John Pflugi, DO | 11 yrs | — | 183 | Accepts |
| Matthew Hardee, D.O. | 19 yrs | — | 277 | Accepts |
| Dejan Spaseski, MD | 13 yrs | — | 188 | Accepts |
| Dominick Myers, MD | 5 yrs | — | 101 | Accepts |
| Burt Humburg, MD | 24 yrs | — | 220 | Accepts |
| Madison Lannom, MD | 6 yrs | — | 90 | Accepts |
What the columns mean
- Experience — years since the clinician’s medical-school graduation (when known).
- Telehealth — the clinician reported providing telehealth (video/phone) visits.
- Medicare patients — distinct Original-Medicare beneficiaries in the latest year; a volume signal, not a quality rating.
- Assignment — “Accepts” means they accept the Medicare-approved amount as full payment (lower out-of-pocket for Medicare patients).
Compare hospital prices in Mason City → · All Internal Medicine cities →
Source: CMS Medicare Physician & Other Practitioners and the Doctors & Clinicians National Downloadable File (most recent release). Counts reflect Original Medicare activity only and are not a measure of quality. “Medicare allows” is the Medicare fee schedule amount — not what an insured or cash patient pays; for patient prices see the linked procedure pages. Always confirm a clinician’s current details with their office.