Doctor Profile
Robert E. Van Demark, Iii
Sioux Falls, SD 57103
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💳 Check Plan Coverage 📞 Call Office 🗺️ Get Directions 🏛️ Verify on Medicare.govReviewed by: Wes Ward, Founder & Data Lead • View our methodology
Important: We are not affiliated with Medicare, CMS, or Robert E. Van Demark, Iii's practice. This page displays publicly available CMS data to help you research Medicare providers. We do not sell insurance or represent any insurance company. For official enrollment and complete plan information, visit Medicare.gov or call 1-800-MEDICARE.
Medicare Plans That Cover Dr. Van Demark
See which plans Dr. Van Demark accepts
We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for South Dakota, the fastest way to find a Medicare plan that covers Dr. Van Demark is to compare every Medicare Advantage and Part D plan available near 57103, SD — the Orthopedic Surgery's office can quickly confirm which of the top local plans they accept.
Compare Medicare Plans near 57103, SD →Or call the office at (605) 332-2883 to confirm acceptance directly.
What Dr. Van Demark Does
Dr. Van Demark served 246 Medicare patients across 260 services in the latest CMS reporting year. That's 57% below the average Orthopedic Surgery in South Dakota (568 patients across 61 doctors).
| Procedure | Services | Medicare Patients |
|---|---|---|
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222) | 73 | 73 |
| Established patient office or other outpatient visit, 20-29 minutes (99213) | 59 | 49 |
| Treatment of broken neck of thigh bone with bone implant (27245) | 32 | 32 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221) | 19 | 19 |
| Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement (27236) | 18 | 18 |
How to read this: "Services" are the total times Dr. Van Demark billed Medicare for each procedure in the latest reporting year. "Patients" counts unique Medicare beneficiaries. Procedures are shown in plain English; the underlying HCPCS codes are available on request.
Hospital Affiliations
Dr. Van Demark is affiliated with 1 hospital in the CMS Physician Compare database. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.
Sanford Usd Medical Center
Practice Location & Telehealth Readiness
Dr. Van Demark practices at the address below. If you're evaluating Medicare coverage, location matters for in-network access and — when Dr. Van Demark offers telehealth — broadband availability at your home matters for virtual visits.
Address: 4405 E 26TH ST, Sioux Falls, SD 57103
Phone: (605) 332-2883
Practice Accessibility
Average commute time in this zip · 90% of residents drive to work. Practical context for patients deciding whether to make the trip. See the full neighborhood profile at BestNeighborhood.org.
Telehealth Readiness
Households with fiber broadband — important for reliable virtual visits. Check your address at ISPReports.org.
Other Orthopedic & Rehab Doctors near 57103, SD
If Dr. Van Demark isn't accepting new patients or isn't in your plan's network, these are the closest orthopedic and rehab doctors near 57103, SD:
| Doctor | Specialty | Medicare Patients / yr | Distance |
|---|---|---|---|
| Mark J. Heidenreich | Orthopedic Surgery | 405 | <1 mi |
| Ryan Todhunter | Orthopedic Surgery | 115 | <1 mi |
| Thomas M. Boetel | Pain Management | 609 | <1 mi |
| Alan Y. Yan | Orthopedic Surgery | 217 | <1 mi |
| Nicholas A. Horan | Physical Medicine And Rehabilitation | 381 | <1 mi |
How to Use This Information
Choosing a Medicare plan that covers Dr. Van Demark takes three steps:
- Verify network status. Medicare Advantage plans each have their own provider networks. The same doctor may be in-network for one plan and out-of-network for another. Compare all Medicare plans near 57103, SD →
- Confirm directly with the office. Call Dr. Van Demark's office at (605) 332-2883 to verify they're accepting new patients and which plans they currently accept. Use our printable question list →
- Check enrollment windows. You can only switch Medicare plans during specific periods. Missing a deadline can cost you a year of coverage. Review enrollment dates →
Robert E. Van Demark, Iii: Common Questions
Does Dr. Van Demark accept Medicare?
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What Medicare plans does Dr. Van Demark accept?
Does Dr. Van Demark offer telehealth visits?
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About the Reviewer
Wes Ward
Founder & Data Lead
Wes Ward reviews all doctor profiles and methodology for data accuracy. Every Medicare provider page on this site — including the utilization statistics, hospital affiliations, and geocoded practice address — goes through his data-validation pipeline before publication. We display only publicly available CMS data; you never need to enter personal information to see any of it.
With 25+ years in data analytics — including work with highly regulated genomic data at Ancestry.com — Wes brings enterprise-level rigor to healthcare transparency. He is also a co-founder of BestNeighborhood.org (neighborhood data), CrimeGrade.org (block-level safety analytics), and ISPReports.org (broadband availability for telehealth). Those sister sites power the location and telehealth-readiness context on this page.
View full profile → • LinkedIn
Data sources: CMS NPPES (2026), CMS Medicare Provider Utilization & Payment Data (2023), CMS Physician Compare, CrimeGrade.org, BestNeighborhood.org, ISPReports.org. This page is for informational purposes only. Always verify coverage directly with the plan and practice. Read our full methodology → • Privacy policy
Medicare Resources
Choosing the right Medicare plan involves more than just doctor coverage. These guides help you evaluate the full picture:
How to Choose a Medicare Plan
In-depth guide to plan types, Star Ratings, drug tiers, and costs.
Enrollment Checklist
Printable step-by-step guide to gather your info and enroll.
Enrollment Dates & Deadlines
Key periods, timelines, and penalty calculations.
Questions for Your Doctor
Printable list to discuss Medicare with Dr. Van Demark or any physician.
Medicare Glossary
Definitions for 40+ complex Medicare terms.
Our Methodology
Learn how we source and verify CMS data for accuracy.
Medicare Plans for Conditions Treated by Orthopedic & Rehab Specialists
See which Medicare plans score highest for conditions commonly managed by this specialty in 57103, SD: