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Internal Medicine

Yorleny Bustamante, MD

Sees patients in Brewster, NY · New York

Summary

Dr. Yorleny Bustamante, MD is an internal medicine doctor at 185 Route 312, Brewster, NY 10509. Phone: (845) 278-7000. Accepts Medicare assignment. In 2024, Yorleny Bustamante had 225 Original Medicare patients and 2,783 services. NPI 1629102652. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 185 Route 312, Brewster, NY 10509 · Directions
  • Phone: (845) 278‑7000
  • Medicare: Accepts Medicare assignment
  • Group practice: Optum Medical Care PC
  • Medical school: State University Of New York Downstate Medical Center · graduated 1994 (32 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Yorleny Bustamante, 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 Yorleny Bustamante accept Medicare assignment?
Yes. Medicare's clinician data says Yorleny Bustamante 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 Yorleny Bustamante see?
In 2024, CMS data shows 225 Original Medicare patients and 2,783 services for Yorleny Bustamante. This counts Original Medicare only and measures volume, not quality.
What is Yorleny Bustamante's NPI number?
1629102652. 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 Yorleny Bustamante, 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 patients225
Services billed to Medicare2,783
Different services or procedures92
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Insertion of needle into vein for collection of blood sample (36415)375 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)375 services
  3. Blood test, comprehensive group of blood chemicals (80053)207 services
  4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)196 services
  5. Blood test, lipids (cholesterol and triglycerides) (80061)159 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 cholesterol75%
  • High blood pressure72%
  • Arthritis41%
  • Chronic kidney disease34%
  • Diabetes26%
  • Ischemic heart disease22%

Practice locations

Addresses where Yorleny Bustamante is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Yorleny Bustamante as a member of this group (CMS data updated October 2, 2026).

  • Optum Medical Care PC1,010 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Brewster

Clinicians with the same Medicare primary specialty in Brewster, NY — not a recommendation.

All internal medicine doctors in Brewster →

Other clinicians in Optum Medical Care PC

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

Clinician information

CredentialMD
Medical schoolState University Of New York Downstate Medical Center
Graduation year1994 (32 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629102652
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