Kelly A. Marszalek, MD

Medicare activity in 2024

Official CMS public-use data for Kelly A. Marszalek, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Hemoglobin a1c level (83036)18 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol73%
• Diabetes69%
• Arthritis54%

Hospitals where Kelly A. Marszalek works

Medicare's Facility Affiliation Data lists Kelly A. Marszalek at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Northwest Health - PorterValparaiso, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150035
• St Mary Medical Center IncHobart, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150034

Practice locations

Addresses where Kelly A. Marszalek is enrolled with Medicare (CMS data updated October 2, 2026).

• 1001 Sturdy RdValparaiso, IN 46383
• 425 Sand Creek Dr, Suite CChesterton, IN 46304
• 621 Memorial Dr, Suite 402South Bend, IN 46601 (574) 400‑4550

Group practices

Medicare enrollment lists Kelly A. Marszalek as a member of these groups (CMS data updated October 2, 2026).

• Chesterton Physical Therapy Inc186 clinicians in the group
• Healthlinc Inc84 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Indiana →

Other family doctors in Valparaiso

Clinicians with the same Medicare primary specialty in Valparaiso, IN — not a recommendation.

• Christopher M. Osan, MD
• Amanda J. Mathews, MD
• Derek S. Gasper, DO
• Bharat K. Pithadia, MD
• Laura A. Hannon, MD
• Mark R. McMurtrey, MD
• Stephanie A. Bryant, DO
• Neil Patel, MD

All family doctors in Valparaiso →

Other clinicians in Chesterton Physical Therapy Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Nasar M. Katariwala, MD
• Peter R. Swiatek, MD
• Jonathan A. Eash, MD
• Andi Arnautovic, MD
• Lisa R. Stephenson, NP
• Nicholas B. Wallace, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians