Fabian A. Mendoza Ballesteros, MD

Medicare activity in 2024

Official CMS public-use data for Fabian A. Mendoza Ballesteros, 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. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)359 services
2. 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)245 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)105 services
4. Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)21 services
5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)20 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 cholesterol73%
• High blood pressure72%
• Arthritis68%
• Osteoporosis49%
• Diabetes29%
• Ischemic heart disease29%

Hospitals where Fabian A. Mendoza Ballesteros works

Medicare's Facility Affiliation Data lists Fabian A. Mendoza Ballesteros 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.

• Chester County HospitalWest Chester, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390179
• Jefferson Stratford HospitalStratford, NJ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 310086
• Thomas Jefferson University HospitalPhiladelphia, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390174

Practice locations

Addresses where Fabian A. Mendoza Ballesteros is enrolled with Medicare (CMS data updated October 2, 2026).

• 211 S 9th St, 6th Flr Suite 600Philadelphia, PA 19107 (215) 955‑1925
• 225 E City Ave, Suite 109Bala Cynwyd, PA 19004 (610) 644‑0134

Group practices

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

• Jefferson University Physicians1,531 clinicians in the group

Specialties

• Rheumatologyprimary

Find other Rheumatology doctors in Pennsylvania →

Other rheumatologists in Philadelphia

Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.

• Shubhasree Banerjee, MD
• Fabian A. Rodriguez Quinonez, MD
• Steven Berney, MD
• Nam Nguyen, DO
• Thomas R. Riley Iv, MD
• Chadwick R. Johr, MD
• Ethan Craig, MD
• David R. Chen, MD

All rheumatologists in Philadelphia →

Other clinicians in Jefferson University Physicians

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

• Monica George, CNA
• Kyle W. Fisher, MD
• Luis Eraso, MD
• Elizabeth M. Boyle, MD
• Alexis B. Sokil, MD
• Swathi Maddula, 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