DR. ASA VICCELLIO M.D.
NPI 1659316750
Emergency Medicine in Stony Brook, NY
About Dr. Asa Viccellio M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ASA VICCELLIO M.D. (NPI 1659316750) is an individual emergency medicine provider in Stony Brook, New York, licensed in New York (137862) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Dr. Asa Viccellio M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Asa Viccellio reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stony Brook, NY 11794
- Reassigned Medicare billing, New York enrollment
- 77 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11794 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.
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 Asa Viccellio's NPI number?
The NPI number for Asa Viccellio is 1659316750. It was assigned to this individual provider in the NPPES registry on June 20, 2006.
Where is Asa Viccellio located?
Asa Viccellio practices at University Hospital, L4, Stony Brook, NY 11794. The listed phone number is (631) 444-2499.
What is Asa Viccellio's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Asa Viccellio enrolled in Medicare?
Yes. Asa Viccellio is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Asa Viccellio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Asa Viccellio reassigns Medicare benefits to Stony Brook Emergency Physicians, University Faculty Practice Corporat (Stony Brook, 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 Asa Viccellio'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 Asa Viccellio was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Asa Viccellio, M.D. · NPI 1659316750
Emergency Medicine physician in Stony Brook, New York. Individual provider, active in the CMS NPPES registry since June 20, 2006.
## Identity
- **NPI:** 1659316750 (Entity type: Individual)
- **Enumerated:** June 20, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 137862 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** UNIVERSITY HOSPITAL, L4, Stony Brook, NY 11794-0001
- **Phone:** (631) 444-2499
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Stony Brook Emergency Physicians, University Faculty Practice Corporat (NPI 1265487672, Stony Brook, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Other 4300208 (NY); Medicaid 00744490 (NY); Other 06F45 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1659316750) · Data from the CMS NPPES public registry.