Doctor Profile

Gastroenterology · Gastroenterology

Thomas P. Mcmahon

MD · Gastroenterology
49725 COUNTY
Staples, MN 56479
✓ Accepts Medicare 🎓 46+ Years Practicing
108
Medicare Patients / yr
6
Procedures Billed
46
Years Practicing
3
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 Thomas P. Mcmahon'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. Mcmahon

See which plans Dr. Mcmahon 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. Mcmahon is to compare every Medicare Advantage and Part D plan available near 56479, MN — the Gastroenterology's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 56479, MN →

Or call the office at (218) 894-1515 to confirm acceptance directly.

What Dr. Mcmahon Does

Dr. Mcmahon served 108 Medicare patients across 114 services in the latest CMS reporting year. That's 64% below the average Gastroenterology in Minnesota (298 patients across 275 doctors).

ProcedureServicesMedicare Patients
Established patient office or other outpatient visit, 30-39 minutes (99214)2823
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)2626
Established patient office or other outpatient visit, 20-29 minutes (99213)2322
Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)1313
Biopsy of large bowel using a flexible endoscope (45380)1212

How to read this: "Services" are the total times Dr. Mcmahon 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. Mcmahon is affiliated with 3 hospitals according to CMS Physician Compare. Below are the 3 hospitals with full quality profiles on our site. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Geisinger Wyoming Valley Medical Center

Wilkes Barre, PA
★★★★☆ 4/5 CMS Rating

Riverside Regional Medical Center

Newport News, VA
★★★☆☆ 3/5 CMS Rating

Lakewood Health System

Staples, MN
Rating not available

Practice Location & Telehealth Readiness

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

Address: 49725 COUNTY, Staples, MN 56479
Phone: (218) 894-1515

Area Safety Grade

D+

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

26 min

Average commute time in this zip · 89% 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

70.4523

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

Get directions on Google Maps →

Other Gastroenterology Doctors near 56479, MN

If Dr. Mcmahon isn't accepting new patients or isn't in your plan's network, these are the closest gastroenterology doctors near 56479, MN:

DoctorSpecialtyMedicare Patients / yrDistance
John C. BergGastroenterology4628.3 mi
Abubaker AbdallaGastroenterology28.7 mi
Aaron J. ChanGastroenterology64828.7 mi
John T. BassettGastroenterology1.1K100.7 mi
Steven D. PletcherGastroenterology574100.7 mi

View all gastroenterology doctors near 56479, MN →

How to Use This Information

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

Compare Medicare Plans near 56479, MN → All Doctors near 56479, MN

Thomas P. Mcmahon: Common Questions

Does Dr. Mcmahon accept Medicare?
Yes. Dr. Mcmahon is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Mcmahon depends on that plan's provider network. Compare Medicare plans near 56479, MN →
Where is Dr. Mcmahon's office?
Dr. Mcmahon practices at 49725 COUNTY, Staples, MN 56479. Phone: (218) 894-1515.
What Medicare plans does Dr. Mcmahon accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (218) 894-1515 to confirm your specific plan is accepted, or compare all Medicare plans near 56479, MN to see available options.
Does Dr. Mcmahon offer telehealth visits?
CMS does not currently list Dr. Mcmahon as offering telehealth. Call the office at (218) 894-1515 to confirm whether virtual visits are available.
How experienced is Dr. Mcmahon?
Dr. Mcmahon graduated in 1980 and has been practicing for approximately 46 years. In the latest CMS reporting year, Dr. Mcmahon treated 108 Medicare patients across 6 distinct procedure types.
How do I know if Dr. Mcmahon 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 (218) 894-1515 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 Gastroenterology Specialists

See which Medicare plans score highest for conditions commonly managed by this specialty in 56479, MN:

Does your Medicare plan cover Dr. Mcmahon?

Compare Plans near 56479, MN →