Rafael A. Nivar-Aristy, MD

Medicare activity in 2024

Official CMS public-use data for Rafael A. Nivar-Aristy, 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. Pathology examination of tissue using a microscope, intermediate complexity (88305)1,164 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)390 services
3. Cell examination of specimen, selective cellular enhancement technique (88112)245 services
4. Evaluation of fine needle aspirate with interpretation and report (88173)185 services
5. Special stained specimen slides to examine tissue, initial procedure (88342)172 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 cholesterol75%
• Ischemic heart disease50%
• Arthritis45%
• Diabetes39%
• Chronic kidney disease34%

Hospitals where Rafael A. Nivar-Aristy works

Medicare's Facility Affiliation Data lists Rafael A. Nivar-Aristy 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.

• Grand Lake Health SystemSaint Marys, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360032
• Institute for Orthopaedic SurgeryLima, OH · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 360263
• Lima Memorial Health SystemLima, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360009
• Mercy Health St Ritas Medical CenterLima, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360066

Practice locations

Addresses where Rafael A. Nivar-Aristy is enrolled with Medicare (CMS data updated October 2, 2026).

• 1001 Bellefontaine AveLima, OH 45804 (419) 226‑5058

Specialties

• Pathologyprimary

Find other Pathology doctors in Ohio →

Other pathologists in Ohio

Clinicians with the same Medicare primary specialty in Ohio — not a recommendation.

• Jordan D. Miller, DO
• Katherine S. Jerew, MD
• Mary D. Hanson, MD
• Navid Sadri, MD
• Steven H. Adams, MD
• Alia Gupta, MD
• Yumei Chen, MD
• Abraham Philip, MD

All pathologists in Ohio →

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