Richard J. Cassidy, MD

Medicare activity in 2024

Official CMS public-use data for Richard J. Cassidy, 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 guidance for insertion of radiation therapy fields (77014)1,223 services
2. Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)1,121 services
3. Continuing radiation therapy consultation per week (77336)330 services
4. Calculation of radiation therapy dose (77300)297 services
5. Radiation treatment management, 5 treatment sessions (77427)287 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%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)67%
• Ischemic heart disease42%
• Arthritis41%
• Chronic kidney disease36%

Hospitals where Richard J. Cassidy works

Medicare's Facility Affiliation Data lists Richard J. Cassidy 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.

• Ascension St Vincent's SouthsideJacksonville, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100307
• Baptist Medical Center BeachesJacksonville Beach, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100117

Practice locations

Addresses where Richard J. Cassidy is enrolled with Medicare (CMS data updated October 2, 2026).

• 7015 A C Skinner Pkwy, Bldg 100Jacksonville, FL 32256 (904) 516‑3737

Group practices

Medicare enrollment lists Richard J. Cassidy as a member of this group (CMS data updated October 2, 2026).

• Cancer Specialists LLC44 clinicians in the group

Specialties

• Radiation Oncologyprimary

Find other Radiation Oncology doctors in Florida →

Other radiation oncologists in Jacksonville

Clinicians with the same Medicare primary specialty in Jacksonville, FL — not a recommendation.

• Julie C. Greenwalt, MD
• Scot N. Ackerman, MD
• Romaine C. Nichols, MD
• Daniel Trifiletti, MD
• Ryan S. Perkins, MD
• Julie A. Bradley, MD
• Cynthia S. Anderson, MD
• Albert Attia, MD

All radiation oncologists in Jacksonville →

Other clinicians in Cancer Specialists LLC

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

• Susmitha Vaka, MD
• Daniel A. Kobrinski, DO
• Unni C. Thomas, MD
• Ayed O. Ayed, MD
• Marc A. Warmuth, MD
• Kevin K. Hunger, 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