DR. RYAN JOSEPH SIELI MD
NPI 1336636901
Emergency Medicine in Brooklyn, NY
About Dr. Ryan Joseph Sieli Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RYAN JOSEPH SIELI MD (NPI 1336636901) is an individual emergency medicine provider in Brooklyn, New York, licensed in New York (309777) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of University Of Missouri, Kansas City, School Of Medicine (2018).
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
Dr. Ryan Joseph Sieli Md 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 Ryan Sieli reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 7,712 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 4
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Nyu Langone Hospitals
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 11215
BROOKLYN, NY 11215
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 Ryan Sieli's NPI number?
The NPI number for Ryan Sieli is 1336636901. It was assigned to this individual provider in the NPPES registry on April 18, 2018.
Where is Ryan Sieli located?
Ryan Sieli practices at 506 6th St, Brooklyn, NY 11215. The listed phone number is (718) 780-3000.
What is Ryan Sieli's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ryan Sieli enrolled in Medicare?
Yes. Ryan Sieli 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 Ryan Sieli's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Sieli reassigns Medicare benefits to New York University (Boynton Beach, FL). 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 Ryan Sieli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ryan Sieli affiliated with any hospitals?
According to CMS data, Ryan Sieli is affiliated with Nyu Langone Hospitals.
When was this NPI record last updated?
The NPPES record for Ryan Sieli was last updated on July 5, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Ryan Joseph Sieli, MD · NPI 1336636901
Emergency Medicine physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since April 18, 2018.
## Identity
- **NPI:** 1336636901 (Entity type: Individual)
- **Enumerated:** April 18, 2018
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 309777 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 506 6TH ST, Brooklyn, NY 11215-3609
- **Phone:** (718) 780-3000
## 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:** New York University (NPI 1285826438, Boynton Beach, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Missouri, Kansas City, School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** July 5, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1336636901) · Data from the CMS NPPES public registry.