Sadhis Rivas, MD
NPI 1659445427 · Endocrinology, Diabetes & Metabolism Physician · Brewster, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sadhis Rivas, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Brewster, NY (NPI 1659445427).
Provider details
- NPI number
- 1659445427
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 161375 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,865 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 312 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 312 | $96 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 157 | $16 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 141 | $10 |
| Hemoglobin A1c Level83036 | 109 | $10 |
| Vitamin D-3 Level82306 | 108 | $29 |
| Blood Test, Lipids (cholesterol and Triglycerides) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 512 | 105 |
| Metformin Hcl | 241 | 68 |
| Repaglinide | 213 | 37 |
| Semaglutidebrand: Ozempic | 179 | 34 |
| Glimepiride | 160 | 31 |
| Insulin Aspartbrand: Novolog Flexpen | 138 | 43 |
| Alendronate Sodium | 127 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$357 across 16 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 260 Avenue XBrooklyn, NY 11223-5940Phone: (718) 336-8855Fax: (718) 336-4366
- 667 Stoneleigh Ave Ste 117Carmel, NY 10512-2455Phone: (845) 279-5136Fax: (855) 703-7570
- 129 Clove Branch RdHopewell Junction, NY 12533-5284Phone: (845) 279-5187Fax: (855) 703-7570
- 888 Route 6Mahopac, NY 10541-6201Phone: (845) 628-1492Fax: (855) 703-7570
Registry dates
- Enumerated
- 2006-11-20
- Last updated
- 2026-01-28
- Certified
- 2026-01-28
Frequently asked questions
- What is Sadhis Rivas's NPI number?
- Sadhis Rivas's National Provider Identifier (NPI) is 1659445427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sadhis Rivas's specialty?
- Sadhis Rivas is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Sadhis Rivas located?
- Sadhis Rivas's practice location on file with NPPES is 111 Clock Tower Cmns, Brewster, NY 10509-4055.
- What is Sadhis Rivas's phone number?
- The practice phone number listed in the NPPES registry for Sadhis Rivas is (845) 279-5187.
- Does Sadhis Rivas accept Medicare?
- Sadhis Rivas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sadhis Rivas's NPI active?
- Yes — Sadhis Rivas's NPI (1659445427) is active in the NPPES registry as of the last update on 2026-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.