Ribu Mathew, MD
NPI 1649807678 · Endocrinology, Diabetes & Metabolism Physician · Stony Brook, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ribu Mathew, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Stony Brook, NY (NPI 1649807678).
Provider details
- NPI number
- 1649807678
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 339019 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 31 | 13 |
| Semaglutidebrand: Ozempic | 29 | — |
| Empagliflozinbrand: Jardiance | 19 | — |
| Repaglinide | 19 | — |
| Metformin Hcl | 16 | — |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 13 | — |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-27
- Last updated
- 2025-10-15
- Certified
- 2025-10-15
Frequently asked questions
- What is Ribu Mathew's NPI number?
- Ribu Mathew's National Provider Identifier (NPI) is 1649807678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ribu Mathew's specialty?
- Ribu Mathew is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Ribu Mathew located?
- Ribu Mathew's practice location on file with NPPES is Health Science Center T16, Room 020, Stony Brook, NY 11790.
- What is Ribu Mathew's phone number?
- The practice phone number listed in the NPPES registry for Ribu Mathew is (631) 444-7411.
- Does Ribu Mathew accept Medicare?
- Ribu Mathew is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ribu Mathew's NPI active?
- Yes — Ribu Mathew's NPI (1649807678) is active in the NPPES registry as of the last update on 2025-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.