BARIATRIC GROUP
NPI 1366816894
Internal Medicine - Obesity Medicine in Port Jefferson, NY
About Bariatric Group NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BARIATRIC GROUP (NPI 1366816894) is a healthcare organization registered as an obesity medicine in Port Jefferson, New York and active in the NPI registry since November 2015. The organization lists Joseph Wisnoski, Vp Finance, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Bariatric Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
8Medicare enrollment records show 8 clinicians reassign Medicare billing to Bariatric Group, which bills Medicare for the services they deliver. Of these, 6 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (8)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 John T Mather Memorial Hospital's NPI number?
The NPI number for John T Mather Memorial Hospital is 1366816894. It was assigned to this organization in the NPPES registry on November 20, 2015. The provider is also known as Bariatric Group.
Where is John T Mather Memorial Hospital located?
John T Mather Memorial Hospital is located at 75 N Country Rd Suite 201, Port Jefferson, NY 11777. The listed phone number is (631) 689-0220.
What is John T Mather Memorial Hospital's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Obesity Medicine, with taxonomy code 207RB0002X.
Is John T Mather Memorial Hospital enrolled in Medicare?
Yes. John T Mather Memorial Hospital is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through John T Mather Memorial Hospital?
According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians, all in Nurse Practitioner, reassign their Medicare billing to John T Mather Memorial Hospital. A 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 the clinician's services. Of these, 6 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for John T Mather Memorial Hospital was last updated on April 8, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.