There are 5 Cardiology clinicians in Grass Valley, CA in Medicare’s data, ranked by the number of Medicare services they provide.
Cardiology clinicians in Grass Valley
| Clinician | Experience | Telehealth | Medicare patients | Assignment |
|---|---|---|---|---|
| Ryan Smith, M.D. | 22 yrs | Yes | 1,378 | Accepts |
| Nathaniel Woodruff, M.D., PHD, FACC | 39 yrs | — | 308 | Accepts |
| Peter Callaham, MD | — | — | 57 | Accepts |
| Kenneth Marvin, MD | 44 yrs | — | 55 | Accepts |
| Meena Zareh, MD | 13 yrs | — | 32 | 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 Grass Valley → · All Cardiology 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.