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Family Practice

Julieta Montilla Adsuar, MD

Sees patients in San Juan, PR · Puerto Rico

Summary

Dr. Julieta Montilla Adsuar, MD is a family doctor at 531 Sergio Cuevas Esq Ave Domene Ave, San Juan, PR 00918. Phone: (787) 765-0680. Accepts Medicare assignment. In 2024, Julieta Montilla Adsuar had 52 Original Medicare patients and 204 services. NPI 1811966633. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 531 Sergio Cuevas Esq Ave Domene Ave, San Juan, PR 00918 · Directions (1 more location)
  • Phone: (787) 765‑0680
  • Medicare: Accepts Medicare assignment
  • Medical school: University Central Del Caribe Escuela De Medicina · graduated 1997 (29 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Julieta Montilla Adsuar, 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 Julieta Montilla Adsuar accept Medicare assignment?
Yes. Medicare's clinician data says Julieta Montilla Adsuar 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 Julieta Montilla Adsuar see?
In 2024, CMS data shows 52 Original Medicare patients and 204 services for Julieta Montilla Adsuar. This counts Original Medicare only and measures volume, not quality.
What is Julieta Montilla Adsuar's NPI number?
1811966633. 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 Julieta Montilla Adsuar, 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 patients52
Services billed to Medicare204
Different services or procedures6
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)102 services
  2. Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)84 services
  3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)11 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%
  • Anxiety25%
  • Osteoporosis25%

Practice locations

Addresses where Julieta Montilla Adsuar is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Family Practice doctors in Puerto Rico →

Other family doctors in San Juan

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

All family doctors in San Juan →

Clinician information

CredentialMD
Medical schoolUniversity Central Del Caribe Escuela De Medicina
Graduation year1997 (29 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811966633
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