Doctor Profile

Nephrology · Nephrology

Karl P. Roos

MD · Nephrology · Loma Linda University School Of Medicine
1025 MARSH ST
Mankato, MN 56001
✓ Accepts Medicare 🎓 21 Years Practicing
2.9K
Medicare Patients / yr
26
Procedures Billed
21
Years Practicing
4
Hospital Affiliations
Data Source: Identity from NPPES (2026). Procedure & patient volume from CMS Medicare Provider Utilization & Payment Data (2023). Hospital affiliations from CMS Physician Compare. We display publicly reported data — no personal information required to view any of it.
Reviewed by: Wes Ward, Founder & Data Lead • View our methodology

Important: We are not affiliated with Medicare, CMS, or Karl P. Roos'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. Roos

See which plans Dr. Roos accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for Minnesota, the fastest way to find a Medicare plan that covers Dr. Roos is to compare every Medicare Advantage and Part D plan available near 56001, MN — the Nephrology's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 56001, MN →

Or call the office at (507) 385-2983 to confirm acceptance directly.

What Dr. Roos Does

Dr. Roos served 2,925 Medicare patients across 5,484 services in the latest CMS reporting year. That's 627% above the average Nephrology in Minnesota (403 patients across 171 doctors).

ProcedureServicesMedicare Patients
Established patient office or other outpatient visit, 30-39 minutes (99214)677362
Insertion of needle into vein for collection of blood sample (36415)509219
Phosphate level (84100)390227
Magnesium level (83735)372199
Parathormone (parathyroid hormone) level (83970)370218

How to read this: "Services" are the total times Dr. Roos 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. Roos is affiliated with 4 hospitals according to CMS Physician Compare. Below are the 4 hospitals with full quality profiles on our site. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Mayo Clinic Health System - Mankato

Mankato, MN
★★★★★ 5/5 CMS Rating

Madelia Health

Madelia, MN
Rating not available

New Ulm Medical Center

New Ulm, MN
Rating not available

United Hospital District

Blue Earth, MN
Rating not available

Practice Location & Telehealth Readiness

Dr. Roos practices at the address below. If you're evaluating Medicare coverage, location matters for in-network access and — when Dr. Roos offers telehealth — broadband availability at your home matters for virtual visits.

Address: 1025 MARSH ST, Mankato, MN 56001
Phone: (507) 385-2983

Area Safety Grade

C-

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

19 min

Average commute time in this zip · 85% 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

77.8023

Households with fiber broadband — important for reliable virtual visits. Check your address at ISPReports.org.

Get directions on Google Maps →

Other Nephrology Doctors near 56001, MN

If Dr. Roos isn't accepting new patients or isn't in your plan's network, these are the closest nephrology doctors near 56001, MN:

DoctorSpecialtyMedicare Patients / yrDistance
Jing MiaoNephrology277<1 mi
Virginia DinesNephrology343<1 mi
Suzanne M. NorbyNephrology128<1 mi
Charat ThongprayoonNephrology304<1 mi
Gary L. SchwartzNephrology57437.0 mi

View all nephrology doctors near 56001, MN →

How to Use This Information

Choosing a Medicare plan that covers Dr. Roos takes three steps:

Compare Medicare Plans near 56001, MN → All Doctors near 56001, MN

Karl P. Roos: Common Questions

Does Dr. Roos accept Medicare?
Yes. Dr. Roos is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Roos depends on that plan's provider network. Compare Medicare plans near 56001, MN →
Where is Dr. Roos's office?
Dr. Roos practices at 1025 MARSH ST, Mankato, MN 56001. Phone: (507) 385-2983.
What Medicare plans does Dr. Roos accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (507) 385-2983 to confirm your specific plan is accepted, or compare all Medicare plans near 56001, MN to see available options.
Does Dr. Roos offer telehealth visits?
CMS does not currently list Dr. Roos as offering telehealth. Call the office at (507) 385-2983 to confirm whether virtual visits are available.
How experienced is Dr. Roos?
Dr. Roos graduated in 2005 and has been practicing for approximately 21 years. In the latest CMS reporting year, Dr. Roos treated 2,925 Medicare patients across 26 distinct procedure types.
How do I know if Dr. Roos is in-network for my Medicare plan?
Network status varies by plan. The best verification steps: (1) check your plan's provider directory at the carrier's website, (2) call the office at (507) 385-2983 and ask which plans they currently accept, and (3) call the number on the back of your Medicare card. Print our doctor questions checklist →

About the Reviewer

Wes Ward

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:

Medicare Plans for Conditions Treated by Nephrology Specialists

See which Medicare plans score highest for conditions commonly managed by this specialty in 56001, MN:

Does your Medicare plan cover Dr. Roos?

Compare Plans near 56001, MN →