Mark A Simaga, 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.

• Community Hospital Hospital · Munster, IN · listed as Munster Medical Research Foundation Inc
• St Catherine Hospital Inc Hospital · East Chicago, IN
• St Mary Medical Center Inc Hospital · Hobart, IN
• Powers Home Health Services Home health agency · Hobart, IN

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Community Care Network Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 374 clinicians in the practice; 12 are shown here.

• Stuart Allan Registered Nurse · Munster, IN
• Alaa Atieh Internal Medicine Physician · Hammond, IN
• Elizabeth Case Family Nurse Practitioner · Highland, IN
• Megan Doheny, MSN, WHNP-BC Women's Health Nurse Practitioner · Hobart, IN
• Emily A Hinton Gerontology Nurse Practitioner · Munster, IN
• Arif Khalil, MD Interventional Cardiology Physician · East Chicago, IN
• Dr. Jared L Moon, DPM Podiatrist · Crown Point, IN
• Dr. Shawn Phillip Naranjo, MD Obstetrics & Gynecology Physician · Mishawaka, IN
• Dr. Vatsal Patel, DO Internal Medicine Physician · Evanston, IL
• Dr. Michelle Srisuwananukorn, MD Internal Medicine Physician · Munster, IN
• Marvin Swain, FNP-C Registered Nurse · Munster, IN
• Dr. James B Walsh, MD Internal Medicine Physician · Munster, IN

Other providers in Hobart

• Todd J Janus, PHD, MD

  Individual Neurology Physician · NPI 1811063100

  1600 S Lake Park Ave Ste 1103, Hobart, IN 46342-6641 · (219) 947-6960

• Dr. Satya N Ramiah, DO

  Individual Neurology Physician · NPI 1134378375

  1500 S Lake Park Ave, Hobart, IN 46342-6638 · (219) 947-6960