STEVEN PAUL OUZOUNIAN M.D.
NPI 1386615243
Surgery in Hampton Bays, NY
About Steven Paul Ouzounian M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEVEN PAUL OUZOUNIAN M.D. (NPI 1386615243) is an individual surgery provider in Hampton Bays, New York, licensed in New York (216059) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Peconic Bay Medical Center, and is a graduate of State University Of New York Downstate Medical Center (1997).
NPPES Registry Identity
Specialties & Licenses 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
Steven Paul Ouzounian 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 Steven Ouzounian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mattituck, NY 11952
- Reassigned Medicare billing, New York enrollment
- 70 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 5
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Peconic Bay Medical Center
Acute Care Hospitals · Riverhead, NYSuny/Stony Brook University Hospital
Acute Care Hospitals · Stony Brook, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11946 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.
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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HAMPTON BAYS, NY 11946
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 Steven Ouzounian's NPI number?
The NPI number for Steven Ouzounian is 1386615243. It was assigned to this individual provider in the NPPES registry on January 30, 2006.
Where is Steven Ouzounian located?
Steven Ouzounian practices at 332 W Montauk Hwy Suite 3, Hampton Bays, NY 11946. The listed phone number is (631) 728-0393.
What is Steven Ouzounian's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Steven Ouzounian enrolled in Medicare?
Yes. Steven Ouzounian 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 Steven Ouzounian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Ouzounian reassigns Medicare benefits to Peconic Bay Primary Medical Care (Mattituck, 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 Steven Ouzounian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Steven Ouzounian affiliated with any hospitals?
According to CMS data, Steven Ouzounian is affiliated with Peconic Bay Medical Center and Suny/Stony Brook University Hospital.
When was this NPI record last updated?
The NPPES record for Steven Ouzounian was last updated on December 17, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Steven Paul Ouzounian, M.D. · NPI 1386615243
Surgery physician in Hampton Bays, New York. Individual provider, active in the CMS NPPES registry since January 30, 2006.
## Identity
- **NPI:** 1386615243 (Entity type: Individual)
- **Enumerated:** January 30, 2006
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 216059 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 332 W MONTAUK HWY, SUITE 3, Hampton Bays, NY 11946-3551
- **Phone:** (631) 728-0393 · **Fax:** (631) 728-0394
## 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:** Peconic Bay Primary Medical Care (NPI 1487620613, Mattituck, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York Downstate Medical Center, class of 1997
## Record status
- **NPPES last updated:** December 17, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1386615243) · Data from the CMS NPPES public registry.