Juan M. Masi, MD

Medicare activity in 2024

Official CMS public-use data for Juan M. Masi, 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)4,040 services
2. Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg (J7325)1,728 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,171 services
4. Insertion of needle into vein for collection of blood sample (36415)1,007 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)359 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%
• Chronic kidney disease73%
• Diabetes59%
• Arthritis54%
• COPD42%

Hospitals where Juan M. Masi works

Medicare's Facility Affiliation Data lists Juan M. Masi 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.

• Sarasota Memorial HospitalSarasota, FL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 100087
• Sarasota Memorial Hospital - VeniceNorth Venice, FL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 100359

Practice locations

Addresses where Juan M. Masi is enrolled with Medicare (CMS data updated October 2, 2026).

• 13815 Tamiami TrlNorth Port, FL 34287 (941) 426‑4900
• 14400 Tamiami TrlNorth Port, FL 34287 (941) 423‑5056

Group practices

Medicare enrollment lists Juan M. Masi as a member of these groups (CMS data updated October 2, 2026).

• Millennium Physician Group LLC982 clinicians in the group
• Community Physicians of North Port, PA4 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Florida →

Other internal medicine doctors in North Port

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

• Rubena J. Smith, MD
• Anna Berenstein, MD
• Derek Essegian, MD
• Elizabeth M. Cefalu, MD
• Girish D. Patel, MD
• Jammal A. Marcano Buret, MD

All internal medicine doctors in North Port →

Other clinicians in Millennium Physician Group LLC

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

• James S. Amontree, MD
• Terri S. Knight, NP
• Pooja S. Pothiwala, MD
• Maggie Chen, NP
• Nkechinyere Esoga, NP
• Amelia D. Piddington, PA

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