Federico J. Gregory-Gonzalez, MD

Medicare activity in 2024

Official CMS public-use data for Federico J. Gregory-Gonzalez, 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 moderate level of decision making, if using time, 30 minutes or more (99214)58 services
2. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)36 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)30 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)17 services
5. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)13 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%
• Diabetes67%
• Arthritis38%
• Asthma25%
• Chronic kidney disease24%

Hospitals where Federico J. Gregory-Gonzalez works

Medicare's Facility Affiliation Data lists Federico J. Gregory-Gonzalez 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.

• Hospital Upr, Dr Federico TrillaCarolina, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400112

Practice locations

Addresses where Federico J. Gregory-Gonzalez is enrolled with Medicare (CMS data updated October 2, 2026).

• 101 Ave San Patricio, Suite 1050Guaynabo, PR 00968 (787) 946‑5220
• Ave 65 Infanteria Km 8 Hm, 3 R.d.c.m. Grp Med Intrna HacCarolina, PR 00984 (787) 757‑6420

Group practices

Medicare enrollment lists Federico J. Gregory-Gonzalez as a member of this group (CMS data updated October 2, 2026).

• Recinto de Ciencias Medicas247 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in Puerto Rico →

Other gastroenterologists in Guaynabo

Clinicians with the same Medicare primary specialty in Guaynabo, PR — not a recommendation.

• Vasco Eguia Moreda, MD
• Abdiel Cruz Loubriel, MD
• Luis A. Arturi, MD
• Nelson Valentin Feliciano, MD

All gastroenterologists in Guaynabo →

Other clinicians in Recinto de Ciencias Medicas

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

• Angel E. Rivera - Barrios, MD
• Rafael J. Lopez-Baquero, MD
• Nicole Rassi Stella, MD
• Cesar M. Carballo, MD
• Janice Crespo Salgado, MD
• Valerie Wojna, 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