Melissa Myrsiades, MD

Medicare activity in 2024

Official CMS public-use data for Melissa Myrsiades, 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)944 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)574 services
3. Special stained specimen slides to examine tissue, initial procedure (88342)285 services
4. Special stained specimen slides to examine tissue including interpretation and report (88313)155 services
5. Pathology examination of tissue using a microscope, moderately high complexity (88307)153 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%
• Arthritis55%
• Ischemic heart disease39%
• Chronic kidney disease38%
• Diabetes33%

Hospitals where Melissa Myrsiades works

Medicare's Facility Affiliation Data lists Melissa Myrsiades 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.

• Banner Boswell Medical CenterSun City, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030061
• Banner del E. Webb Medical CenterSun City West, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030093
• Banner Thunderbird Medical CenterGlendale, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 030089
• Dignity Health Arizona General HospitalMesa, AZ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 030139
• 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 Melissa Myrsiades is enrolled with Medicare (CMS data updated October 2, 2026).

• 10401 W Thunderbird BlvdSun City, AZ 85351 (602) 685‑5211
• 14502 W Meeker BlvdSun City, AZ 85375 (602) 685‑5211
• 350 W Thomas RdPhoenix, AZ 85013 (602) 406‑3000
• 7300 N 99th AveGlendale, AZ 85307 (602) 406‑0000

Group practices

Medicare enrollment lists Melissa Myrsiades as a member of these groups (CMS data updated October 2, 2026).

• Pathology Specialist of Arizona, LLP71 clinicians in the group
• St Josephs Pathology13 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Arizona →

Other pathologists in Sun City

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

• Steve M. Nguyen, MD
• Yimin Dong, MD
• Daniel A. Cherry, MD
• Chadwick F. Haarer, MD
• Adam J. Gomez, MD
• Richard Eisen, MD
• Dasan M. Schmitt, MD
• Jiakang Huang, MD

All pathologists in Sun City →

Other clinicians in Pathology Specialist of Arizona, LLP

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

• Jonathan C. Bennett, MD
• Sajit K. Vinayak, MD
• Steve M. Nguyen, MD
• Qing J. Cao, MD
• Ashish P. Mogal, MD
• Gagandeep Kaur, 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