Darren F. Peress, MD

Medicare activity in 2024

Official CMS public-use data for Darren F. Peress, 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. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)2,880 services
2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,540 services
3. Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days (93297)408 services
4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)297 services
5. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)272 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%
• Atrial fibrillation53%
• Arthritis52%
• Ischemic heart disease50%
• Heart failure40%

Hospitals where Darren F. Peress works

Medicare's Facility Affiliation Data lists Darren F. Peress 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.

• Benson HospitalBenson, AZ · Critical Access Hospital · Emergency services: listed by Medicare · CCN 031301
• Tucson Medical CenterTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030006

Practice locations

Addresses where Darren F. Peress is enrolled with Medicare (CMS data updated October 2, 2026).

• 4475 S I 19 Frontage Rd, Suite 125Green Valley, AZ 85614 (520) 838‑3540
• 5301 E Grant RdTucson, AZ 85712 (520) 327‑5461

Group practices

Medicare enrollment lists Darren F. Peress as a member of these groups (CMS data updated October 2, 2026).

• Pima Heart Physicians PC65 clinicians in the group
• Tucson Medical Center29 clinicians in the group

Specialties

• Cardiac Electrophysiologyprimary
• Internal Medicinealso

Find other Cardiac Electrophysiology doctors in Arizona →

Other cardiac electrophysiologists in Green Valley

Clinicians with the same Medicare primary specialty in Green Valley, AZ — not a recommendation.

• Benigno F. Decena Iii, MD
• Jitender Munjal, MD
• Hymie L. Faitelson, MD

All cardiac electrophysiologists in Green Valley →

Other clinicians in Pima Heart Physicians PC

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

• Jacob A. Klewer, MD
• Kristy L. Keating, NP
• Salvatore J. Tirrito, MD
• Lora M. Versluis, PA
• Ajay Tuli, MD
• Frank E. Molls, 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