RIBU MATHEW MD
NPI 1649807678
Internal Medicine - Endocrinology, Diabetes & Metabolism in Stony Brook, NY
About Ribu Mathew Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RIBU MATHEW MD (NPI 1649807678) is an individual endocrinology, diabetes & metabolism provider in Stony Brook, New York, licensed in New York (339019) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Other (2020).
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
Ribu Mathew 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 Ribu Mathew 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.
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 11790 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Ribu Mathew's NPI number?
The NPI number for Ribu Mathew is 1649807678. It was assigned to this individual provider in the NPPES registry on March 27, 2020.
Where is Ribu Mathew located?
Ribu Mathew practices at Health Science Center T16, Room 020, Stony Brook, NY 11790. The listed phone number is (631) 444-7411.
What is Ribu Mathew's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Ribu Mathew enrolled in Medicare?
Yes. Ribu Mathew 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 Ribu Mathew's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ribu Mathew 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 Ribu Mathew's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ribu Mathew affiliated with any hospitals?
According to CMS data, Ribu Mathew is affiliated with Nyu Langone Hospitals.
When was this NPI record last updated?
The NPPES record for Ribu Mathew was last updated on October 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Ribu Mathew, MD · NPI 1649807678
Endocrinology, Diabetes & Metabolism physician in Stony Brook, New York. Individual provider, active in the CMS NPPES registry since March 27, 2020.
## Identity
- **NPI:** 1649807678 (Entity type: Individual)
- **Enumerated:** March 27, 2020
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 339019 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** HEALTH SCIENCE CENTER T16, ROOM 020, Stony Brook, NY 11790
- **Phone:** (631) 444-7411
## 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:** Other, class of 2020
## Record status
- **NPPES last updated:** October 15, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1649807678) · Data from the CMS NPPES public registry.