Erin Leslie McCammack, MD

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. Those with a page here are linked.

• Ascension St Vincent Hospital Hospital · Indianapolis, IN · listed as St Vincent Hospital
• Hendricks Regional Health Hospital · Danville, IN
• Ascension St Vincent Kokomo Hospital · Kokomo, IN
• Riverview Health Hospital · Noblesville, IN
• Witham Health Services Hospital · Lebanon, IN

Colleagues at Cancer Care Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 21 clinicians in the practice; 12 are shown here.

• Dr. Scott Loring Ackley, MD Radiation Oncology Physician · Terre Haute, IN
• Dr. Sandeep Ramesh Bhave, MD Student in an Organized Health Care Education/Training Program · Indianapolis, IN
• Dr. Thomas C Dugan, MD Radiation Oncology Physician · Indianapolis, IN
• Jessica Zhou Durk, MD Radiation Oncology Physician · Indianapolis, IN
• Dr. Michael Eaton, MD Radiation Oncology Physician · Indianapolis, IN
• Markus M. Fitzek, MD Radiation Oncology Physician · Bloomington, IN
• Dr. Robert Haerr, MD Radiation Oncology Physician · Terre Haute, IN
• Christopher Alan Leagre, MD Radiation Oncology Physician · Indianapolis, IN
• Robert Howard Liebross, MD Radiation Oncology Physician · Indianapolis, IN
• Mark John Lobo Radiation Oncology Physician · Lafayette, IN
• Frank Wood Peyton Jr., MD Radiation Oncology Physician · Indianapolis, IN
• Dr. David Bennett Ross, MD Radiation Oncology Physician · Kokomo, IN

Other providers in Indianapolis

• Maryam Massoumi, MD

  Individual Internal Medicine Physician · NPI 1194709022

  2001 W 86th St 3N Medical Education, Indianapolis, IN 46260-1902 · (317) 338-2172

• Dr. Mark Anthony Mastrodicasa, MD

  Individual Internal Medicine Physician · NPI 1144548967

  8333 Naab Rd Ste 250, Indianapolis, IN 46260-1983 · (317) 338-5100

• Dr. Tarvinder Singh Matharu, MD

  Individual Internal Medicine Physician · NPI 1912985615

  7830 Madison Ave, Indianapolis, IN 46227-5704 · (317) 888-1100

• Herbert Reid Mattison, MD

  Individual Internal Medicine Physician · NPI 1043250939

  1633 N Capitol Ave Ste 750, Indianapolis, IN 46202-1270 · (317) 962-0953

• Dr. Ross McCauley, MD

  Individual Internal Medicine Physician · NPI 1952921132

  550 University Blvd, Indianapolis, IN 46202-5149 · (317) 944-5000

• Katherine McGrath, DO

  Individual Internal Medicine Physician · NPI 1649807660

  8333 Naab Rd Ste 420, Indianapolis, IN 46260-1992 · (317) 338-6666

• Anne Thometz McGuire, MD

  Individual Internal Medicine Physician · NPI 1508582651

  220 Virginia Ave, Indianapolis, IN 46204-3709 · (833) 401-1577

• John R McNary, MD

  Individual Internal Medicine Physician · NPI 1316143092

  1701 N Senate Blvd, Indianapolis, IN 46202-1239 · (888) 484-3258