Doctor profile · Federal record
Dr. Sadhis Rivas, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Brewster, NY
- NPI 1659445427
- Accepts Medicare
- 45 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 5 locations .
- Primary practice
-
111 Clock Tower Cmns
Brewster, NY 105094055
(845) 279-5187
fax (855) 703-7570 - Additional location
-
129 Clove Branch RD
Hopewell Junction, NY 125335284 - Additional location
-
260 Avenue X
Brooklyn, NY 112235940
(718) 336-8855
fax (718) 336-4366 - Additional location
-
667 Stoneleigh Ave Ste 117
Carmel, NY 105122455
(845) 279-5136 - Additional location
-
888 Route 6
Mahopac, NY 105416201
(845) 628-1492
Show 2 more locations
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- January 28, 2026
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- New York #161375
- Medicaid
- NY #01013432
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659445427. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,824
Distinct HCPCS
10
Medicare allowed
$60,051
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 304 | 193 | $95 | |
36415 |
Insertion of needle into vein for collection of blood sample | 289 | 152 | $8 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 130 | 89 | $16 | |
80053 |
Blood test, comprehensive group of blood chemicals | 128 | 99 | $10 | |
83036 |
Hemoglobin a1c level | 119 | 81 | $9 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 100 | 74 | $13 | |
82962 |
Blood glucose (sugar) test performed by hand-held instrument | 95 | 72 | $3 | |
82306 |
Vitamin d-3 level | 89 | 73 | $29 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 68 | 57 | $136 | |
84439 |
Thyroxine (thyroid chemical), free | 62 | 46 | $9 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 76. This provider delivers 24× the peer median.Open Payments
Industry payments received
All-time total
$357
Transactions
16
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 4 | $86.54 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 3 | $67.54 | |
| Insulet Corporation | 2 | $48.27 | |
| ABBVIE INC. | 2 | $38.32 | |
| Lexicon Pharmaceuticals, Inc. | 1 | $29.46 | |
| GlaxoSmithKline, LLC. | 1 | $29.38 | |
| RECORDATI_RARE_DISEASES_INC. | 1 | $22.02 | |
| Bayer Healthcare Pharmaceuticals Inc. | 1 | $18.22 | |
| Novartis Pharmaceuticals Corporation | 1 | $17.37 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,070
Patients
518
Total drug cost
$804,166
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 438 | 92 | $9,703 |
| Repaglinide | Generic | 274 | 56 | $8,619 |
| Metformin Hcl | Generic | 250 | 76 | $3,767 |
| Novolog Flexpen (Insulin Aspart) | Brand | 164 | 49 | $163,768 |
| Glimepiride | Generic | 126 | 28 | $842 |
| Tresiba Flextouch U-100 (Insulin Degludec) | Brand | 126 | 40 | $71,230 |
| Jardiance (Empagliflozin) | Brand | 107 | 26 | $121,248 |
| Alendronate Sodium | Generic | 99 | 19 | $3,467 |
| Ozempic (Semaglutide) | Brand | 88 | 20 | $123,938 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 83 | 30 | $59,116 |
Frequently asked questions
What is Dr. Sadhis Rivas's medical specialty?
Dr. Sadhis Rivas practices Endocrinology, Diabetes & Metabolism Physician in Brewster, NY.
Where does Dr. Sadhis Rivas practice?
Dr. Sadhis Rivas practices at 111 Clock Tower Cmns, Brewster, NY 105094055. Office phone: 8452795187.
What is Dr. Sadhis Rivas's NPI?
Dr. Sadhis Rivas's National Provider Identifier (NPI) is 1659445427, issued by NPPES.
Does Dr. Sadhis Rivas accept Medicare assignment?
Yes. Dr. Sadhis Rivas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sadhis Rivas commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, thyroid stimulating hormone (tsh) (HCPCS 84443). Source: CMS Medicare Physician & Other Practitioners file.