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Endocrinology

Francisco J. Nadal, MD

Sees patients in Ponce, PR · Puerto Rico

Summary

Dr. Francisco J. Nadal, MD is an endocrinologist at 23 Calle Dr Ulises Clavell, Ponce, PR 00716. Phone: (787) 259-4463. Accepts Medicare assignment. In 2024, Francisco J. Nadal had 76 Original Medicare patients and 108 services. NPI 1669498358. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Endocrinologist (Medicare lists Endocrinology)
  • Address: 23 Calle Dr Ulises Clavell, Ponce, PR 00716 · Directions (1 more location)
  • Phone: (787) 259‑4463
  • Medicare: Accepts Medicare assignment
  • Medical school: Ponce School Of Medicine · graduated 1993 (33 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Francisco J. Nadal, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Francisco J. Nadal accept Medicare assignment?
Yes. Medicare's clinician data says Francisco J. Nadal accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Francisco J. Nadal see?
In 2024, CMS data shows 76 Original Medicare patients and 108 services for Francisco J. Nadal. This counts Original Medicare only and measures volume, not quality.
What is Francisco J. Nadal's NPI number?
1669498358. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Francisco J. Nadal, 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.

Original Medicare patients76
Services billed to Medicare108
Different services or procedures3
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)72 services
  2. Testing of autonomic (sympathetic) nervous system function, heart rate response to breathing exercises, and passive tilt (95922)32 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%
  • Diabetes71%
  • Arthritis43%
  • Chronic kidney disease33%
  • Ischemic heart disease30%

Practice locations

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

Specialties

Find other Endocrinology doctors in Puerto Rico →

Other endocrinologists in Ponce

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

All endocrinologists in Ponce →

Clinician information

CredentialMD
Medical schoolPonce School Of Medicine
Graduation year1993 (33 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1669498358
CorrectionsReport an error or suggest an update →

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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians