Karen S. Caldemeyer, MD

Medicare activity in 2024

Official CMS public-use data for Karen S. Caldemeyer, 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. Ct scan head or brain without contrast (70450)721 services
2. Ct scan of upper spine without contrast (72125)211 services
3. Ct scan of blood vessels of head with contrast (70496)194 services
4. Ct scan of blood vessels of neck with contrast (70498)189 services
5. Mri scan of brain without contrast (70551)168 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%
• Arthritis58%
• Diabetes37%
• Ischemic heart disease37%
• Anxiety36%

Hospitals where Karen S. Caldemeyer works

Medicare's Facility Affiliation Data lists Karen S. Caldemeyer 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.

• Cox Medical CentersSpringfield, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260040
• Merit Health NatchezNatchez, MS · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 250084
• Self Regional HealthcareGreenwood, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420071
• St Lukes Regional Medical CenterSioux City, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160146
• University of MD Shore Medical Center at EastonEaston, MD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 210037

Practice locations

Addresses where Karen S. Caldemeyer is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

• 103 Medicine Way RdPeridot, AZ 85542 (928) 475‑1400
• 1528 Central AveIndianapolis, IN 46202 · Donalsonville Hospital Inc (229) 524‑5217
• 1625 N Campbell AveTucson, AZ 85719 (832) 915‑2534
• 3657 Spring Hollow RdIndianapolis, IN 46208 (615) 312‑0600
• 8800 N Callahan RdPrescott, AZ 86305 (832) 915‑2534

Group practices

Medicare enrollment lists Karen S. Caldemeyer as a member of these groups (CMS data updated October 2, 2026).

• Sonoran Radiology Ltd475 clinicians in the group
• Radiology Alliance PC455 clinicians in the group
• Virtual Radiologic Professionals LLC397 clinicians in the group
• Northside Radiology Associates LLC385 clinicians in the group
• San Carlos Apache Healthcare Corporation148 clinicians in the group
• Atlantic Radiology Associates LLC82 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in Arizona →

Other radiologists in Peridot

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

• Rona Gazaway, MD
• Arthur A. Montes, MD
• Fozail Alvi, MD
• Duane C. Wilson, MD
• Sam S. Cheng, MD
• Christine Bliven, MD
• Rolf F. Vrla, MD
• Joshua D. Morais, MD

All radiologists in Peridot →

Other clinicians in Sonoran Radiology Ltd

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

• Scott D. Agran, MD
• Alicia M. Cartagena, MD
• Matthew Carrea, MD
• Ankaj Khosla, MD
• Christopher C. May, MD
• Razvan Zemianschi, 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