John R. Alessi, MD

Medicare activity in 2024

Official CMS public-use data for John R. Alessi, 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, methylprednisolone acetate, 1 mg (J1010)2,696 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,235 services
3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)652 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)199 services
5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)181 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 pressure73%
• Arthritis47%
• Ischemic heart disease32%
• Chronic kidney disease24%
• Diabetes22%

Hospitals where John R. Alessi works

Medicare's Facility Affiliation Data lists John R. Alessi 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.

• Yavapai Regional Medical CenterPrescott, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030012

Practice locations

Addresses where John R. Alessi is enrolled with Medicare (CMS data updated October 2, 2026).

• 474 N Hwy 89Chino Valley, AZ 86323 (928) 636‑5680

Group practices

Medicare enrollment lists John R. Alessi as a member of this group (CMS data updated October 2, 2026).

• Yavapai Regional Medical Center Physician Care LLC124 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Arizona →

Other family doctors in Arizona

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

• Jacob Hrkal, DO
• Mitchell W. Spencer, DO
• Greg B. Alaestante, DO
• Christina M. Martin, DO
• Jason Wong
• Ronald J. Lee, MD
• Elizabeth K. Fox-Mtandika, DO
• Stacey J. Sullivan, MD

All family doctors in Arizona →

Other clinicians in Yavapai Regional Medical Center Physician Care LLC

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

• Shayan Alam, MD
• Amy K. Durham, NP
• Sam Safavi-Abbasi, MD
• Marc M. Sedwitz, MD
• Shane E. Moore, DO
• John F. Mackenzie, DO

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