Doctor profile · Federal record
Dr. Susan Demarest, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Niskayuna, NY
- NPI 1558680504
- Accepts Medicare
- 16 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2125 River RD Ste 303
Niskayuna, NY 123091136
(518) 213-6910
fax (518) 213-6915 - Mailing address
-
711 Troy Schenectady RD Ste 203
Latham, NY 121102461
Credentials & registration
- NPI registered
- May 2010 — 16 yrs on file
- Profile last updated
- March 13, 2026
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- New York #277624
- Medicaid
- NY #04102383
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558680504. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,853
Distinct HCPCS
10
Medicare allowed
$105,556
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 1,740 | 17 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 244 | 124 | $124 | |
83036 |
Hemoglobin a1c level | 145 | 71 | $9 | |
96372 |
Injection of drug or substance under skin or into muscle | 98 | 25 | $14 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 95 | 38 | $34 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 61 | 47 | $85 | |
82306 |
Vitamin d-3 level | 58 | 43 | $29 | |
80069 |
Kidney function blood test panel | 57 | 44 | $9 | |
84439 |
Thyroxine (thyroid chemical), free | 50 | 32 | $9 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 49 | 31 | $16 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 142. This provider delivers 20× the peer median.Open Payments
Industry payments received
All-time total
$606
Transactions
26
Manufacturers
14
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 5 | $118.34 | |
| Insulet Corporation | 2 | $68.27 | |
| Dexcom, Inc. | 3 | $64.84 | |
| Tolmar, Inc. | 3 | $59.16 | |
| Tandem Diabetes Care, Inc. | 1 | $42.94 | |
| Antares Pharma, Inc. | 2 | $41.18 | |
| Abbott Laboratories | 2 | $40.43 | |
| Novo Nordisk Inc | 2 | $34.98 | |
| ABBVIE INC. | 1 | $31.28 | |
| Mannkind Corporation | 1 | $22.62 | |
| RECORDATI_RARE_DISEASES_INC. | 1 | $22.17 | |
| SANOFI-AVENTIS U.S. LLC | 1 | $21.48 | |
| IBSA Pharma Inc. | 1 | $19.76 | |
| RGH Enterprises LLC | 1 | $18.76 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,683
Patients
789
Total drug cost
$1,745,503
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 442 | 108 | $6,717 |
| Ozempic (Semaglutide) | Brand | 439 | 103 | $763,535 |
| Novolog Flexpen (Insulin Aspart) | Brand | 223 | 74 | $309,836 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 207 | 62 | $4,641 |
| Metformin Hcl | Generic | 196 | 51 | $2,471 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 179 | 61 | $129,212 |
| Jardiance (Empagliflozin) | Brand | 173 | 51 | $223,536 |
| Atorvastatin Calcium | Generic | 143 | 48 | $2,539 |
| Basaglar Kwikpen U-100 (Insulin Glargine,hum.Rec.Anlog) | Brand | 135 | 45 | $83,089 |
| Synthroid (Levothyroxine Sodium) | Brand | 112 | 26 | $10,797 |
Hospital affiliations
Frequently asked questions
What is Dr. Susan Demarest's medical specialty?
Dr. Susan Demarest practices Endocrinology, Diabetes & Metabolism Physician in Niskayuna, NY.
Where does Dr. Susan Demarest practice?
Dr. Susan Demarest practices at 2125 River RD Ste 303, Niskayuna, NY 123091136. Office phone: 5182136910.
What is Dr. Susan Demarest's NPI?
Dr. Susan Demarest's National Provider Identifier (NPI) is 1558680504, issued by NPPES.
Does Dr. Susan Demarest accept Medicare assignment?
Yes. Dr. Susan Demarest accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Susan Demarest commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Hemoglobin a1c level (HCPCS 83036). Source: CMS Medicare Physician & Other Practitioners file.