Michael Jon Thomas, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

• Ascension St Vincent Evansville Hospital · Evansville, IN
• Ascension St Vincent Warrick Hospital · Boonville, IN

Colleagues at St Marys Medical Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 228 clinicians in the practice; 12 are shown here.

• Tejalben H Bakhtiani Family Nurse Practitioner · Newburgh, IN
• Steven C Barnett, MD Family Medicine Physician · Lynnville, IN
• Dr. Phillip Henry Behrens, MD Cardiovascular Disease Physician · Evansville, IN
• Dr. Robert Cutrell, MD Hospitalist Physician · Evansville, IN
• Charity A Frey, ACNP Acute Care Nurse Practitioner · Evansville, IN
• Dr. Jeffrey Alan Glant, MD Internal Medicine Physician · Muncie, IN
• Dr. Francis Joseph Kadiyamkuttiyil, MD Neurology Physician · Evansville, IN
• Dr. Kelly L Kling-Tipton, MD Hospitalist Physician · Evansville, IN
• Dr. Christopher Donn Nelson, DO Internal Medicine Physician · Evansville, IN
• Dr. John C Rodrigues, MD Critical Care Medicine (Internal Medicine) Physician · Evansville, IN
• April J Shoulders, NP Family Nurse Practitioner · Evansville, IN
• Srikanth Tamma, MD Hematology & Oncology Physician · New Orleans, LA

Other providers in Evansville

• Dr. Henry Lee Roberts, MD

  Individual Surgery Physician · NPI 1881120434

  520 Mary St Ste 520, Evansville, IN 47710-1682 · (812) 424-8231

• Dr. Brian W Schymik, MD

  Individual Surgery Physician · NPI 1114926003

  520 Mary St Ste 520, Evansville, IN 47710-1682 · (812) 424-8231

• St Mary's Medical Center of Evansville, Inc

  Organization Surgery Physician · NPI 1093028201

  3801 Bellemeade Ave Ste 110, Evansville, IN 47714-0100 · (812) 485-8390

• Surgical Care Associates LLC

  Organization Surgery Physician · NPI 1124369426

  801 Saint Marys Dr Ste 205 W, Evansville, IN 47714-0511 · (812) 477-6103

• Dr. Erik B Throop, MD

  Individual Surgery Physician · NPI 1659370542

  520 Mary St Ste 520, Evansville, IN 47710-1682 · (812) 424-8231

• Dr. Santi Vibul, MD

  Individual Surgery Physician · NPI 1053310953

  520 Mary St Ste 520, Evansville, IN 47710-1677 · (812) 424-8231

• Mell B Welborn Jr., MD

  Individual Surgery Physician · NPI 1427116631

  350 W Columbia St Ste 350, Evansville, IN 47710-5610 · (812) 450-7700

• MS. Jessica Kathryn Wise, MD

  Individual Surgery Physician · NPI 1487117123

  520 Mary St Ste 520, Evansville, IN 47710-1682 · (812) 424-8231