John A. Isch, 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. Those with a page here are linked.

• Ascension St Vincent Carmel Hospital · Carmel, IN · listed as St Vincent Carmel Hospital, Inc
• Ascension St Vincent Hospital Hospital · Indianapolis, IN · listed as St Vincent Hospital
• Hendricks Regional Health Hospital · Danville, IN
• Ascension St Vincent Anderson Hospital · Anderson, IN
• Ascension St Vincent Kokomo Hospital · Kokomo, IN

Colleagues at Naab Road Surgical Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 16 clinicians in the practice; 12 are shown here.

• Dr. Jessica Helen Belchos, MD Student in an Organized Health Care Education/Training Program · Indianapolis, IN
• Robert Michael Dorenbusch, DO Student in an Organized Health Care Education/Training Program · Indianapolis, IN
• Dr. Ian Kenneth Ferries, MD Surgery Physician · Indianapolis, IN
• Sheri Lynn French, PA Physician Assistant · Indianapolis, IN
• Timothy Allen Glass, MD Surgery Physician · Indianapolis, IN
• Lewis E Jacobson, MD Surgery Physician · Indianapolis, IN
• Douglas J Kaderabek, MD Surgery Physician · Indianapolis, IN
• Kathryn Leitwein, MD Surgery Physician · Indianapolis, IN
• Viney Mathavan, MD Surgery Physician · Indianapolis, IN
• Michael G Rowe, MD Surgery Physician · Indianapolis, IN
• Luke Shadiow, DO-GRADUATE05/2019 Student in an Organized Health Care Education/Training Program · Indianapolis, IN
• Thomas T Tigges, MD Surgery Physician · Indianapolis, IN

Other providers in Indianapolis

• Indiana General Surgery, PC

  Organization Surgery Physician · NPI 1609889526

  3520 Guion Rd Ste 301, Indianapolis, IN 46222-1692 · (317) 924-4009

• Indiana Hernia Center, LLC

  Organization Surgery Physician · NPI 1265939656

  8435 Clearvista Pl Ste 104, Indianapolis, IN 46256-3761 · (317) 868-1305

• Indiana University School of Medicine

  Organization Surgery Physician · NPI 1225296734

  545 Barnhill Dr Emerson Hall 203, Indianapolis, IN 46202-5112 · (317) 274-5000

• Indy Pain Solutions LLC

  Organization Surgery Physician · NPI 1528546421

  4715 Statesmen Dr, Indianapolis, IN 46250 · (480) 930-4018

• Dr. Christopher Ryan Jackson, MD

  Individual Surgery Physician · NPI 1821358730

  1402 E County Line Rd, Indianapolis, IN 46277-3411 · (317) 887-7000

• Lewis E Jacobson, MD

  Individual Surgery Physician · NPI 1104888098

  8240 Naab Rd Ste 100, Indianapolis, IN 46260 · (317) 274-3086

• Dr. Rama M Jager, MD, PHD

  Individual Surgery Physician · NPI 1992874051

  931 E 86th St Ste 107, Indianapolis, IN 46240-1852 · (317) 418-8110

• Dr. Sachin Jain, MD

  Individual Surgery Physician · NPI 1821550427

  720 Eskenazi Ave, Indianapolis, IN 46202-5187 · (317) 880-0000