There are 21 Internal Medicine clinicians in Greeley, CO in Medicare’s data, ranked by the number of Medicare services they provide.
Internal Medicine clinicians in Greeley
| Clinician | Experience | Telehealth | Medicare patients | Assignment |
|---|---|---|---|---|
| Steven Kalt, MD | 35 yrs | Yes | 440 | Accepts |
| Mark Berntsen, MD | 33 yrs | Yes | 820 | Accepts |
| Daniel Zenk, MD | 35 yrs | Yes | 650 | Accepts |
| Dana Christiansen, MD | 33 yrs | Yes | 517 | Accepts |
| Danielle Doro, M.D. | 24 yrs | Yes | 472 | Accepts |
| John Ebens, MD | 37 yrs | Yes | 512 | Accepts |
| Siemay Lee, MD | 25 yrs | Yes | 280 | Accepts |
| Meara Melton, M.D., M.B.A. | 9 yrs | Yes | 345 | Accepts |
| Brian Daily, MD | 9 yrs | — | 288 | Accepts |
| Emerito Natanawan, M.D. | 40 yrs | Yes | 249 | Accepts |
| Tesfaye Demeke, MD | 38 yrs | — | 247 | Accepts |
| Kyle Hirsh, D.O. | 13 yrs | Yes | 196 | Accepts |
| Francis Hall, MD | 12 yrs | Yes | 198 | Accepts |
| Costa Alimonos | 9 yrs | — | 246 | Accepts |
| Nicolas Knauss, D.O. | 15 yrs | — | 140 | Accepts |
| Marcus Reinhardt, M.D. | 26 yrs | — | 117 | Accepts |
| Siavash Panah, M.D. | 19 yrs | — | 190 | Accepts |
| Keith Thompson, MD | 43 yrs | — | 160 | Accepts |
| Marsha Hamner, MD | 26 yrs | — | 85 | Accepts |
| August Martin, DO | 5 yrs | — | 55 | Accepts |
| Curtis Waln, MD | 30 yrs | — | 83 | 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 Greeley → · 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.