Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Sadhis Rivas, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1659445427

Dr. Sadhis Rivas, MD is an Endocrinology in Brewster, New York. Qualified in 1981, 45 years ago. Practices with Northern Medical Group, PLLC, a 38-clinician group, works from 5 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
45
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

111 Clock Tower Cmns
Brewster, NY 10509-4055
Phone: (845) 279-5187
Fax: (855) 703-7570
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 260 Avenue X, Brooklyn, NY 11223-5940 — (718) 336-8855
  • 667 Stoneleigh Ave Ste 117, Carmel, NY 10512-2455 — (845) 279-5136
  • 129 Clove Branch Rd, Hopewell Junction, NY 12533-5284 — (845) 279-5187
  • 888 Route 6, Mahopac, NY 10541-6201 — (845) 628-1492

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 161375 (NY)

Record details

NPI number1659445427
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 20, 2006
Last updated in NPPESJanuary 28, 2026
Certification dateJanuary 28, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Group practice Northern Medical Group, Pllc — 38 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Brewster