Jeffrey A. Nebelsieck, MD

Medicare activity in 2024

Official CMS public-use data for Jeffrey A. Nebelsieck, 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. Injection, testosterone cypionate, 1 mg (J1071)20,400 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,355 services
3. Insertion of needle into vein for collection of blood sample (36415)1,020 services
4. Blood test, comprehensive group of blood chemicals (80053)975 services
5. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)929 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 cholesterol75%
• High blood pressure60%
• Arthritis48%
• Ischemic heart disease20%
• Atrial fibrillation18%
• Osteoporosis16%

Hospitals where Jeffrey A. Nebelsieck works

Medicare's Facility Affiliation Data lists Jeffrey A. Nebelsieck 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.

• Bonner General HospitalSandpoint, ID · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 131328
• Honor Health John C. Lincoln Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030014
• HonorHealth Scottsdale Osborn Medical CenterScottsdale, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030038
• HonorHealth Scottsdale Shea Medical CenterScottsdale, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030087
• St Josephs Hospital and Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030024

Practice locations

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

• 4840 E Indian School Rd, Suite 101Phoenix, AZ 85018 (602) 522‑1900

Group practices

Medicare enrollment lists Jeffrey A. Nebelsieck as a member of this group (CMS data updated October 2, 2026).

• Internal Medicine of Arizona PC6 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Arizona →

Other internal medicine doctors in Phoenix

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

• Frank N. Oppong Takyi, MD
• Ajeet S. Nagra, MD
• Alexander Alsadi, MD
• Thomas R. Taylor, DO
• Holger Kranich, MD
• Gerardo Sicalo Oborsky, MD
• Farmin Samareh-Jahani, MD
• Lauren K. Poling, DO

All internal medicine doctors in Phoenix →

Other clinicians in Internal Medicine of Arizona PC

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

• Wayne E. Kuhl, MD
• Alan J. Andresen, MD
• Cory M. Buschmann, MD
• Laura K. Omalley, MD
• Gregory J. Johns, 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