DR. SAMANTHA MAZZEO DO
NPI 1306475660
Emergency Medicine in Brooklyn, NY
About Dr. Samantha Mazzeo Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SAMANTHA MAZZEO DO (NPI 1306475660) is an individual emergency medicine provider in Brooklyn, New York, licensed in New York (336309) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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
Dr. Samantha Mazzeo Do 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 Samantha Mazzeo reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11203
- Reassigned Medicare billing, New York enrollment
- 291 clinicians in this Medicare group
New York, NY 10017
- Reassigned Medicare billing, New York enrollment
- 208 clinicians in this Medicare group
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 325 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Sinai Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11203 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.
BROOKLYN, NY 11203
BROOKLYN, NY 11203
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 Samantha Mazzeo's NPI number?
The NPI number for Samantha Mazzeo is 1306475660. It was assigned to this individual provider in the NPPES registry on April 7, 2020.
Where is Samantha Mazzeo located?
Samantha Mazzeo practices at 450 Clarkson Ave, Brooklyn, NY 11203. The listed phone number is (718) 270-1000.
What is Samantha Mazzeo's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Samantha Mazzeo enrolled in Medicare?
Yes. Samantha Mazzeo 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 Samantha Mazzeo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Samantha Mazzeo reassigns Medicare benefits to 3 organizations: University Physicians Of Brooklyn, Inc (Brooklyn, NY), Icahn School Of Medicine At Mount Sinai (New York, NY) and Icahn School Of Medicine At Mount Sinai (New York, NY). 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 Samantha Mazzeo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Samantha Mazzeo affiliated with any hospitals?
According to CMS data, Samantha Mazzeo is affiliated with Mount Sinai Hospital.
When was this NPI record last updated?
The NPPES record for Samantha Mazzeo was last updated on April 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. Samantha Mazzeo, DO · NPI 1306475660
Emergency Medicine physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since April 7, 2020.
## Identity
- **NPI:** 1306475660 (Entity type: Individual)
- **Enumerated:** April 7, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 336309 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 450 CLARKSON AVE, Brooklyn, NY 11203-2012
- **Phone:** (718) 270-1000
## 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): University Physicians Of Brooklyn, Inc (NPI 1104878180, Brooklyn, NY); Icahn School Of Medicine At Mount Sinai (NPI 1679083984, New York, NY); Icahn School Of Medicine At Mount Sinai (NPI 1477899078, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York College Of Osteo Medicine Of New York Institute Of Technology, class of 2020
## Record status
- **NPPES last updated:** April 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1306475660) · Data from the CMS NPPES public registry.