ANDREA KASSAI M.D.
Prescription History 1982920567
Internal Medicine - Endocrinology, Diabetes & Metabolism in Worcester, MA
What does Dr. Kassai prescribe?
In 2024, Dr. Kassai wrote 2,911 Medicare prescriptions for 43 medications. The most prescribed was Jardiance (empagliflozin), with 330 prescriptions for 98 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Kassai prescribes.
Medications 43 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other Massachusetts prescribers.
What it is used for
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 330 prescriptions for Jardiance, about 6.7 times as often as the typical Massachusetts prescriber of it (49). Medicare paid $1,113.34 per fill, versus $1,010.43 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dulaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 326 prescriptions for Trulicity, about 6.6 times as often as the typical Massachusetts prescriber of it (49). Medicare paid $1,296.25 per fill, versus $1,207.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Massachusetts prescribers
Dr. Kassai wrote 294 prescriptions for Levothyroxine Sodium, about 2.4 times as often as the typical Massachusetts prescriber of it (123). Medicare paid $8.34 per fill, versus $10.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Massachusetts prescribers
Dr. Kassai wrote 236 prescriptions for Metformin Hcl Er, about 4.6 times as often as the typical Massachusetts prescriber of it (52). Medicare paid $15.79 per fill, versus $12.48 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 218 prescriptions for Ozempic, about 4.3 times as often as the typical Massachusetts prescriber of it (51). Medicare paid $1,258.47 per fill, versus $1,217.01 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Massachusetts prescribers
Dr. Kassai wrote 176 prescriptions for Metformin Hcl, about 2.4 times as often as the typical Massachusetts prescriber of it (73). Medicare paid $11.74 per fill, versus $9.67 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Atorvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Massachusetts prescribers
Dr. Kassai wrote 145 prescriptions for Atorvastatin Calcium, about 77% as often as the typical Massachusetts prescriber of it (188). Medicare paid $14.89 per fill, versus $13.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 131 prescriptions for Lantus Solostar, about 3.3 times as often as the typical Massachusetts prescriber of it (40). Medicare paid $128.06 per fill, versus $121.42 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Massachusetts prescribers
Dr. Kassai wrote 83 prescriptions for Nano 2nd Gen Pen Needle, about 2 times as often as the typical Massachusetts prescriber of it (41). Medicare paid $96.38 per fill, versus $95.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tirzepatide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 64 prescriptions for Mounjaro, about 1.4 times as often as the typical Massachusetts prescriber of it (46). Medicare paid $1,134.31 per fill, versus $1,225.06 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Glipizide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 63 prescriptions for Glipizide, about 1.9 times as often as the typical Massachusetts prescriber of it (33). Medicare paid $9.31 per fill, versus $10.70 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin lispro is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 59 prescriptions for Humalog Kwikpen U-100, about 1.7 times as often as the typical Massachusetts prescriber of it (34). Medicare paid $293.24 per fill, versus $252.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Linagliptin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Massachusetts prescribers
Dr. Kassai wrote 56 prescriptions for Tradjenta, about 1.8 times as often as the typical Massachusetts prescriber of it (31). Medicare paid $1,037.51 per fill, versus $635.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin aspart is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 51 prescriptions for Novolog Flexpen, about 1.5 times as often as the typical Massachusetts prescriber of it (33). Medicare paid $194.05 per fill, versus $217.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dapagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 48 prescriptions for Farxiga, about 1.3 times as often as the typical Massachusetts prescriber of it (38). Medicare paid $972.94 per fill, versus $908.11 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 47 prescriptions for Basaglar Kwikpen U-100, about 1.5 times as often as the typical Massachusetts prescriber of it (31). Medicare paid $425.96 per fill, versus $412.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rosuvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Massachusetts prescribers
Dr. Kassai wrote 44 prescriptions for Rosuvastatin Calcium, about half as often as the typical Massachusetts prescriber of it (79). Medicare paid $26.70 per fill, versus $28.16 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Alendronate is used to prevent and treat certain types of bone loss (osteoporosis) in adults.
Compared with Massachusetts prescribers
Dr. Kassai wrote 39 prescriptions for Alendronate Sodium, about as often as the typical Massachusetts prescriber of it (42). Medicare paid $12.15 per fill, versus $10.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Glipizide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 39 prescriptions for Glipizide Er, about as often as the typical Massachusetts prescriber of it (34). Medicare paid $18.68 per fill, versus $17.43 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with Massachusetts prescribers
Dr. Kassai wrote 37 prescriptions for Ezetimibe, about as often as the typical Massachusetts prescriber of it (41). Medicare paid $23.13 per fill, versus $40.52 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Massachusetts prescribers
Dr. Kassai wrote 36 prescriptions for Synthroid, about 1.2 times as often as the typical Massachusetts prescriber of it (30). Medicare paid $94.96 per fill, versus $59.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin aspart is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 30 prescriptions for Fiasp Flextouch, about as often as the typical Massachusetts prescriber of it (28). Medicare paid $911.63 per fill, versus $867.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Massachusetts prescribers
Dr. Kassai wrote 28 prescriptions for Ultra-Fine Nano Pen Needle, about 1.4 times as often as the typical Massachusetts prescriber of it (21). Medicare paid $71.19 per fill, versus $84.25 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Massachusetts prescribers
Dr. Kassai wrote 26 prescriptions for Alcohol Prep Pads, about as often as the typical Massachusetts prescriber of it (25). Medicare paid $22.04 per fill, versus $19.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Massachusetts prescribers
Dr. Kassai wrote 26 prescriptions for Ultra-Fine Short Pen Needle, about as often as the typical Massachusetts prescriber of it (27). Medicare paid $102.43 per fill, versus $90.61 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 24 prescriptions for Lantus, about 84% as often as the typical Massachusetts prescriber of it (28). Medicare paid $144.01 per fill, versus $108.73 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin degludec is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 19 prescriptions for Tresiba Flextouch U-100, about half as often as the typical Massachusetts prescriber of it (34). Medicare paid $478.32 per fill, versus $644.36 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin degludec is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 19 prescriptions for Tresiba Flextouch U-200, about 63% as often as the typical Massachusetts prescriber of it (30). Medicare paid $1,104.82 per fill, versus $1,129.37 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Massachusetts prescribers
Dr. Kassai wrote 19 prescriptions for Ultra-Fine Mini Pen Needle, about 72% as often as the typical Massachusetts prescriber of it (26). Medicare paid $102.03 per fill, versus $91.93 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Methimazole is used to treat overactive thyroid (hyperthyroidism).
Compared with Massachusetts prescribers
Dr. Kassai wrote 18 prescriptions for Methimazole, about half as often as the typical Massachusetts prescriber of it (39). Medicare paid $9.37 per fill, versus $11.78 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin lispro is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 17 prescriptions for Insulin Lispro Kwikpen U-100, about 69% as often as the typical Massachusetts prescriber of it (24). Medicare paid $156.16 per fill, versus $159.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin aspart is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 17 prescriptions for Novolog, about 73% as often as the typical Massachusetts prescriber of it (23). Medicare paid $188.59 per fill, versus $223.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Teriparatide is used to treat bone loss (osteoporosis) in people who have a high risk of getting fractures.
Compared with Massachusetts prescribers
Dr. Kassai wrote 17 prescriptions for Teriparatide, about 65% as often as the typical Massachusetts prescriber of it (26). Medicare paid $2,252.14 per fill, versus $2,330.48 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Simvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Massachusetts prescribers
Dr. Kassai wrote 16 prescriptions for Simvastatin, about 21% as often as the typical Massachusetts prescriber of it (75). Medicare paid $9.27 per fill, versus $9.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Concentrated insulin regular is used with a proper diet and exercise program to control high blood sugar in people with diabetes who require large doses of insulin (more than 200 units per day).
Compared with Massachusetts prescribers
Dr. Kassai wrote 15 prescriptions for Humulin R U-500 Kwikpen, about half as often as the typical Massachusetts prescriber of it (27). Medicare paid $895.83 per fill, versus $1,611.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is the same as your body's own glucagon, a natural substance that raises blood sugar by causing the body to release sugar stored in the liver.
Compared with Massachusetts prescribers
Dr. Kassai wrote 14 prescriptions for Baqsimi, about 72% as often as the typical Massachusetts prescriber of it (20). Medicare paid $499.02 per fill, versus $470.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin lispro is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 13 prescriptions for Admelog Solostar, about half as often as the typical Massachusetts prescriber of it (23). Medicare paid $275.49 per fill, versus $319.15 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high levels of prolactin hormone in your body.
Compared with Massachusetts prescribers
Dr. Kassai wrote 13 prescriptions for Cabergoline, about half as often as the typical Massachusetts prescriber of it (24). Medicare paid $135.72 per fill, versus $70.56 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pioglitazone is a diabetes drug (thiazolidinedione-type, also called "glitazones") used along with a proper diet and exercise program to control high blood sugar in patients with type 2 diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 13 prescriptions for Pioglitazone Hcl, about half as often as the typical Massachusetts prescriber of it (28). Medicare paid $7.73 per fill, versus $17.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is the same as your body's own glucagon, a natural substance that raises blood sugar by causing the body to release sugar stored in the liver.
Compared with Massachusetts prescribers
Dr. Kassai wrote 12 prescriptions for Gvoke Hypopen 2-Pack, about half as often as the typical Massachusetts prescriber of it (22). Medicare paid $592.36 per fill, versus $679.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Glimepiride is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 11 prescriptions for Glimepiride, about 35% as often as the typical Massachusetts prescriber of it (32). Medicare paid $6.91 per fill, versus $10.08 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin aspart is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Massachusetts prescribers
Dr. Kassai wrote 11 prescriptions for Insulin Aspart, about 70% as often as the typical Massachusetts prescriber of it (16). Medicare paid $161.99 per fill, versus $119.68 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lisinopril is used to treat high blood pressure.
Compared with Massachusetts prescribers
Dr. Kassai wrote 11 prescriptions for Lisinopril, about 9% as often as the typical Massachusetts prescriber of it (123). Medicare paid $14.42 per fill, versus $8.13 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Kassai’s prescriptions
What does Dr. Kassai prescribe most?
In 2024 Medicare Part D data, Dr. Kassai's most prescribed medications were Jardiance (330), Trulicity (326) and Levothyroxine Sodium (294).
How does Dr. Kassai's prescribing compare with other Massachusetts prescribers?
Of the 43 medications with a state comparison, Dr. Kassai prescribes 16 more often than the typical Massachusetts prescriber, 9 about as often and 18 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Kassai prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the Massachusetts prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
