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Primary care doctors who accept Medicare in Watertown, SD
CMS lists 28 clinicians in this specialty with a practice address in Watertown. Accept Medicare assignment (the Medicare-approved amount as full payment): 26. Offer telehealth: 13.
Typical amounts Medicare approves in ZIP 57201 (2024 Medicare rates, the latest CMS has published): a new-patient visit $127, of which you pay about $32; a follow-up visit $98, of which you pay about $24 — the 20% coinsurance after the yearly Part B deductible. Clinicians who don't accept assignment can charge up to 15% more; with a Medicare Advantage plan, your plan's copay applies instead.
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Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
Hamid Assadi, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.6/100Graduated 2013MaleAaron Pickrel, DO
✓ Accepts Medicare assignmentMIPS score (2024): 94.6/100Graduated 2019 · Edward Via Col of Osteo Medicine-Carolinas CampusMaleWilliam W. Devine, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.8/100Graduated 1994 · University of North Dakota School of MedicineMaleOther offices in Watertown: 1Edward A. Dickes, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.8/100Graduated 2010 · Sanford School of Medicine of University of South DakotaMaleOther offices in Watertown: 1Pastel A. Fligge, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.8/100Graduated 2008 · Sanford School of Medicine of University of South DakotaFemaleDrug and device company payments (2025): $19Stephanie M. Peyton-Aas, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.8/100Graduated 2017FemaleKristen M. Pickrel, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.8/100Graduated 2019 · University of Minnesota Medical SchoolFemaleOther offices in Watertown: 1Keri L. Orstad, MD
✓ Accepts Medicare assignmentMIPS score (2024): 83.3/100Graduated 2005 · Sanford School of Medicine of University of South DakotaFemaleDrug and device company payments (2025): $112Makayla Bretschneider, MD
✓ Accepts Medicare assignmentGraduated 2022 · University of North Dakota School of MedicineFemaleDarren Chester, MD
✓ Accepts Medicare assignmentGraduated 1995 · Sanford School of Medicine of University of South DakotaMaleAlexandra Gauer, DO
✓ Accepts Medicare assignment✓ TelehealthGraduated 2022 · At Still University of Health Sciences, College of Osteo Med, KirksvilleFemaleDrug and device company payments (2025): $100Allison J. Geier, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2004 · Sanford School of Medicine of University of South DakotaFemaleDrug and device company payments (2025): $141Lornell E. Hansen II, MD
✓ Accepts Medicare assignmentGraduated 1994 · Sanford School of Medicine of University of South DakotaMaleDrug and device company payments (2025): $129Scott J. Hiltunen, MD
✓ Accepts Medicare assignmentGraduated 1990 · Sanford School of Medicine of University of South DakotaMaleJessica A. Horn, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2008 · Sanford School of Medicine of University of South DakotaFemaleDrug and device company payments (2025): $399Derek G. Kindelspire, MD
✓ Accepts Medicare assignmentGraduated 2011 · Sanford School of Medicine of University of South DakotaMaleDrug and device company payments (2025): $45John J. Kinross-Wright, MD
✓ Accepts Medicare assignmentGraduated 2013 · University of Colorado School of Medicine, DenverMaleDrug and device company payments (2025): $72Gregory R. Larson, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1990 · Sanford School of Medicine of University of South DakotaMaleOther offices in Watertown: 1Drug and device company payments (2025): $68Stacie A. Lenssen, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2000 · University of Minnesota Medical SchoolFemaleDrug and device company payments (2025): $118Jonathan M. McAreavey, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2001 · Sanford School of Medicine of University of South DakotaMaleDrug and device company payments (2025): $662Hollis D. Nipe, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1985 · Sanford School of Medicine of University of South DakotaMaleDrug and device company payments (2025): $616Douglas J. Olson, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2006 · Sanford School of Medicine of University of South DakotaMaleDrug and device company payments (2025): $95Daniel H. Reiffenberger, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1991 · Sanford School of Medicine of University of South DakotaMaleDrug and device company payments (2025): $248Sarah A. Reiffenberger, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1991 · Sanford School of Medicine of University of South DakotaFemaleOther offices in Watertown: 1Drug and device company payments (2025): $523Deepali Shah, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2017FemaleDrug and device company payments (2025): $281Aaron B. Shives, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1986 · Sanford School of Medicine of University of South DakotaMaleOther offices in Watertown: 1Drug and device company payments (2025): $621Joseph P. Oro, MD
May accept assignmentGraduated 1999MaleDrug and device company payments (2025): $162Amy L. Wagoner
May accept assignment✓ TelehealthGraduated 1997 · Sanford School of Medicine of University of South DakotaFemale
Before you book
This list comes from Medicare's enrollment records, not from reviews. Call the office to confirm the clinician is taking new Medicare patients. With Original Medicare, a clinician who accepts assignment can only charge you the Medicare deductible and coinsurance; one who doesn't may charge up to 15% more than the Medicare-approved amount. If you have a Medicare Advantage plan, check that the clinician is in the plan's network.
The MIPS final score (0–100) comes from Medicare's Merit-based Incentive Payment System for 2024. It combines quality measures, cost, improvement activities and use of certified health records, and it sets a payment adjustment. Clinicians who report as a group share the group's score. It is not a patient rating, and many clinicians have no published score.
Payments from drug and medical device companies come from CMS Open Payments (2025 general payments: meals, travel, consulting and speaking fees, gifts and similar), summed for each clinician. Receiving payments is legal and common and does not mean a clinician did anything wrong.
Other specialists in Watertown
- Nurse practitioners45
- Cardiologists6
- Orthopedic surgeons8
- Ophthalmologists3
- Optometrists8
- Podiatrists3
- Psychologists3
- Therapists and counselors17
- Physical therapists17
- Occupational therapists6
- Audiologists3
- Chiropractors14
- Gynecologists4
- General surgeons8
Other care in Watertown
Hospitals · Nursing homes · Dialysis centers · Hospices
Nearby cities
Enrollment, addresses and scores are as reported to CMS and can change. This is not a list of in-network providers for any Medicare Advantage plan, and it is not medical advice. Source: CMS Provider Data Catalog — Doctors and Clinicians National Downloadable File, Clinician MIPS Performance 2024 and Facility Affiliation Data (released Oct 2, 2026).