YORLENY BUSTAMANTE M.D.
NPI 1629102652
Internal Medicine in Brewster, NY
About Yorleny Bustamante M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YORLENY BUSTAMANTE M.D. (NPI 1629102652) is an individual internal medicine provider in Brewster, New York, licensed in New York (206921) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS and is a graduate of State University Of New York Downstate Medical Center (1994).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Yorleny Bustamante M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Yorleny Bustamante reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Optum Medical Care PC
- 1,601 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 31
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10509 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BREWSTER, NY 10509
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Yorleny Bustamante's NPI number?
The NPI number for Yorleny Bustamante is 1629102652. It was assigned to this individual provider in the NPPES registry on March 14, 2007. The provider is also known as Mrs. Yorleny Pfeffer-Bustamante.
Where is Yorleny Bustamante located?
Yorleny Bustamante practices at 185 Route 312, Brewster, NY 10509. The listed phone number is (845) 278-7000.
What is Yorleny Bustamante's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Yorleny Bustamante enrolled in Medicare?
Yes. Yorleny Bustamante is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Yorleny Bustamante's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yorleny Bustamante reassigns Medicare benefits to Optum Medical Care, P.C. (Mount Kisco, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Yorleny Bustamante's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Yorleny Bustamante was last updated on November 29, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.