Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Obstetrics/Gynecology

Lizzie E. Alfonzo Sarnelli, MD

Sees patients in Caguas, PR · Puerto Rico

Summary

Dr. Lizzie E. Alfonzo Sarnelli, MD is an OB-GYN at Salida 21 Caguas A Cidra, Urb Turabo Garden, Caguas, PR 00725. Phone: (787) 434-1700. Accepts Medicare assignment. NPI 1548253099. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: Salida 21 Caguas A Cidra, Urb Turabo Garden, Caguas, PR 00725 · Directions
  • Phone: (787) 434‑1700
  • Medicare: Accepts Medicare assignment
  • Group practice: Hospital Menonita Caguas Inc
  • Medical school: graduated 1990 (36 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Lizzie E. Alfonzo Sarnelli, 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 Lizzie E. Alfonzo Sarnelli accept Medicare assignment?
Yes. Medicare's clinician data says Lizzie E. Alfonzo Sarnelli 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.
What is Lizzie E. Alfonzo Sarnelli's NPI number?
1548253099. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Lizzie E. Alfonzo Sarnelli is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Lizzie E. Alfonzo Sarnelli as a member of this group (CMS data updated October 2, 2026).

  • Hospital Menonita Caguas Inc48 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Puerto Rico →

Other OB-GYNs in Caguas

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

All OB-GYNs in Caguas →

Other clinicians in Hospital Menonita Caguas Inc

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

Clinician information

CredentialMD
Graduation year1990 (36 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1548253099
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians