ANASTASIA THERESA AMBROSIO
NPI 1033796784
Emergency Medicine in Bronx, NY
About Anastasia Theresa Ambrosio NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANASTASIA THERESA AMBROSIO (NPI 1033796784) is an individual emergency medicine provider in Bronx, New York, licensed in Vermont (032.0134296) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with Good Samaritan Hospital Medical Center, and is a graduate of Kansas City University Of Med & Biosciences, College Of Osteo Med (2021).
NPPES Registry Identity
Specialties & Licenses
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
Anastasia Theresa Ambrosio 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 Reassignments
3Medicare enrollment records show Anastasia Ambrosio reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Islip, NY 11795
- Reassigned Medicare billing, New York enrollment
- 395 clinicians in this Medicare group
West Islip, NY 11795
- Reassigned Medicare billing, New York enrollment
- 91 clinicians in this Medicare group
Springfield, VT 05156
- Reassigned Medicare billing, Vermont enrollment
- 56 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Samaritan Hospital Medical Center
Acute Care Hospitals · West Islip, NYSpringfield Hospital
Critical Access Hospitals · Springfield, VTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10457 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BRONX, NY 10457
BRONX, NY 10457
BRONX, NY 10457
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 Anastasia Ambrosio's NPI number?
The NPI number for Anastasia Ambrosio is 1033796784. It was assigned to this individual provider in the NPPES registry on March 28, 2021.
Where is Anastasia Ambrosio located?
Anastasia Ambrosio practices at 4422 3rd Ave, Bronx, NY 10457. The listed phone number is (718) 960-9000.
What is Anastasia Ambrosio's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Anastasia Ambrosio enrolled in Medicare?
Yes. Anastasia Ambrosio 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 organizations bill Medicare for Anastasia Ambrosio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anastasia Ambrosio reassigns Medicare benefits to 3 organizations: Good Samaritan Hospital Medical Center (West Islip, NY), Samaritan Emergency Medical Services, PC (West Islip, NY) and Springfield Hospital (Springfield, VT). Each 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 Anastasia Ambrosio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Anastasia Ambrosio affiliated with any hospitals?
According to CMS data, Anastasia Ambrosio is affiliated with Good Samaritan Hospital Medical Center and Springfield Hospital.
When was this NPI record last updated?
The NPPES record for Anastasia Ambrosio was last updated on December 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.
# Anastasia Theresa Ambrosio · NPI 1033796784
Emergency Medicine physician in Bronx, New York. Individual provider, active in the CMS NPPES registry since March 28, 2021.
## Identity
- **NPI:** 1033796784 (Entity type: Individual)
- **Enumerated:** March 28, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 032.0134296 (Vermont)
- **Sole proprietor:** No
## Practice location
- **Address:** 4422 3RD AVE, Bronx, NY 10457-2545
- **Phone:** (718) 960-9000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Good Samaritan Hospital Medical Center (NPI 1518901180, West Islip, NY); Samaritan Emergency Medical Services, PC (NPI 1104978014, West Islip, NY); Springfield Hospital (NPI 1033225875, Springfield, VT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Kansas City University Of Med & Biosciences, College Of Osteo Med, class of 2021
## Record status
- **NPPES last updated:** December 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1033796784) · Data from the CMS NPPES public registry.