DR. ALFRED O GRECO MD
Prescription History 1073501607
Internal Medicine - Medical Oncology in Shiloh, IL
What does Dr. Greco prescribe?
In 2024, Dr. Greco wrote 1,540 Medicare prescriptions for 44 medications. The most prescribed was Anastrozole, with 187 prescriptions for 55 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. Greco prescribes.
Medications 44 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 Illinois prescribers.
What it is used for
Anastrozole is used to treat breast cancer in women after menopause.
Compared with Illinois prescribers
Dr. Greco wrote 187 prescriptions for Anastrozole, about 2.5 times as often as the typical Illinois prescriber of it (76). Medicare paid $13.31 per fill, versus $17.15 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 certain types of breast cancer (such as hormone-receptor-positive breast cancer) in women after menopause.
Compared with Illinois prescribers
Dr. Greco wrote 138 prescriptions for Letrozole, about 2.5 times as often as the typical Illinois prescriber of it (56). Medicare paid $18.81 per fill, versus $19.02 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 severe nausea and vomiting from certain causes (for example, after surgery or cancer treatment).
Compared with Illinois prescribers
Dr. Greco wrote 75 prescriptions for Prochlorperazine Maleate, about 2.2 times as often as the typical Illinois prescriber of it (34). Medicare paid $26.53 per fill, versus $10.63 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
Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders.
Compared with Illinois prescribers
Dr. Greco wrote 65 prescriptions for Prednisone, about 1.4 times as often as the typical Illinois prescriber of it (46). Medicare paid $3.86 per fill, versus $3.88 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
Apixaban is used to prevent serious blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip/knee replacement surgery.
Compared with Illinois prescribers
Dr. Greco wrote 64 prescriptions for Eliquis, about 68% as often as the typical Illinois prescriber of it (94). Medicare paid $622.59 per fill, versus $848.57 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 combination medication is used to relieve moderate to severe pain.
Compared with Illinois prescribers
Dr. Greco wrote 53 prescriptions for Hydrocodone-Acetaminophen, about 75% as often as the typical Illinois prescriber of it (71). Medicare paid $32.67 per fill, versus $20.03 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
Dexamethasone is used to treat conditions such as arthritis, blood/hormone disorders, allergic reactions, skin diseases, eye problems, breathing problems, bowel disorders, cancer, and immune system disorders.
Compared with Illinois prescribers
Dr. Greco wrote 52 prescriptions for Dexamethasone, about 1.5 times as often as the typical Illinois prescriber of it (34). Medicare paid $20.47 per fill, versus $12.06 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
This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with Illinois prescribers
Dr. Greco wrote 52 prescriptions for Ondansetron Hcl, about 1.7 times as often as the typical Illinois prescriber of it (30). Medicare paid $5.51 per fill, versus $10.68 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
See also Warning section.
Compared with Illinois prescribers
Dr. Greco wrote 46 prescriptions for Tramadol Hcl, about 81% as often as the typical Illinois prescriber of it (57). Medicare paid $5.97 per fill, versus $5.65 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 certain cancers (such as chronic lymphocytic leukemia/small lymphocytic lymphoma, Waldenstrom's macroglobulinemia).
Compared with Illinois prescribers
Dr. Greco wrote 45 prescriptions for Imbruvica, about 1.8 times as often as the typical Illinois prescriber of it (25). Medicare paid $11,236.21 per fill, versus $15,499.34 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
Acyclovir is used to treat infections caused by certain types of viruses.
Compared with Illinois prescribers
Dr. Greco wrote 43 prescriptions for Acyclovir, about 1.4 times as often as the typical Illinois prescriber of it (31). Medicare paid $10.48 per fill, versus $13.22 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 by people with sickle cell anemia to reduce the number of painful crises caused by the disease and to reduce the need for blood transfusions.
Compared with Illinois prescribers
Dr. Greco wrote 41 prescriptions for Hydroxyurea, about as often as the typical Illinois prescriber of it (36). Medicare paid $23.49 per fill, versus $21.27 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
Tamoxifen is used to treat breast cancer.
Compared with Illinois prescribers
Dr. Greco wrote 38 prescriptions for Tamoxifen Citrate, about as often as the typical Illinois prescriber of it (35). Medicare paid $21.60 per fill, versus $23.49 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 Illinois prescribers
Dr. Greco wrote 37 prescriptions for Levothyroxine Sodium, about 24% as often as the typical Illinois prescriber of it (156). Medicare paid $2.89 per fill, versus $10.46 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 diarrhea.
Compared with Illinois prescribers
Dr. Greco wrote 36 prescriptions for Diphenoxylate-Atropine, about 1.9 times as often as the typical Illinois prescriber of it (19). Medicare paid $16.94 per fill, versus $21.61 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
This combination medication is used to help relieve moderate to severe pain.
Compared with Illinois prescribers
Dr. Greco wrote 34 prescriptions for Oxycodone-Acetaminophen, about 73% as often as the typical Illinois prescriber of it (47). Medicare paid $68.60 per fill, versus $27.50 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with Illinois prescribers
Dr. Greco wrote 31 prescriptions for Gabapentin, about 36% as often as the typical Illinois prescriber of it (87). Medicare paid $20.61 per fill, versus $15.83 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
Alprazolam is used to treat anxiety and panic disorders.
Compared with Illinois prescribers
Dr. Greco wrote 30 prescriptions for Alprazolam, about half as often as the typical Illinois prescriber of it (65). Medicare paid $6.41 per fill, versus $6.66 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 a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Illinois prescribers
Dr. Greco wrote 28 prescriptions for Potassium Chloride, about 40% as often as the typical Illinois prescriber of it (70). Medicare paid $16.35 per fill, versus $20.43 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
Methylprednisolone is used to treat conditions such as arthritis, blood disorders, severe allergic reactions, certain cancers, eye conditions, skin/kidney/intestinal/lung diseases, and immune system disorders.
Compared with Illinois prescribers
Dr. Greco wrote 27 prescriptions for Methylprednisolone, about 79% as often as the typical Illinois prescriber of it (34). Medicare paid $4.29 per fill, versus $5.95 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 blood clots (such as in deep vein thrombosis-DVT or pulmonary embolus-PE) and/or to prevent new clots from forming in your body.
Compared with Illinois prescribers
Dr. Greco wrote 27 prescriptions for Warfarin Sodium, about half as often as the typical Illinois prescriber of it (51). Medicare paid $4.73 per fill, versus $8.49 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
Anagrelide is used to treat a certain blood disorder (thrombocythemia), which is caused by your bone marrow making too many platelets.
Compared with Illinois prescribers
Dr. Greco wrote 26 prescriptions for Anagrelide Hcl, about 1.6 times as often as the typical Illinois prescriber of it (17). Medicare paid $192.45 per fill, versus $133.90 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 Illinois prescribers
Dr. Greco wrote 25 prescriptions for Alendronate Sodium, about half as often as the typical Illinois prescriber of it (49). Medicare paid $9.24 per fill, versus $8.38 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 help relieve moderate to severe pain.
Compared with Illinois prescribers
Dr. Greco wrote 25 prescriptions for Oxycodone Hcl, about 65% as often as the typical Illinois prescriber of it (38). Medicare paid $41.33 per fill, versus $14.50 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
Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with Illinois prescribers
Dr. Greco wrote 23 prescriptions for Furosemide, about 26% as often as the typical Illinois prescriber of it (90). Medicare paid $1.75 per fill, versus $5.20 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 anxiety.
Compared with Illinois prescribers
Dr. Greco wrote 22 prescriptions for Lorazepam, about half as often as the typical Illinois prescriber of it (48). Medicare paid $4.16 per fill, versus $6.59 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
Lenalidomide is used to treat various types of cancers.
Compared with Illinois prescribers
Dr. Greco wrote 22 prescriptions for Revlimid, about half as often as the typical Illinois prescriber of it (42). Medicare paid $20,590.37 per fill, versus $17,756.89 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
Bicalutamide is used to treat prostate cancer.
Compared with Illinois prescribers
Dr. Greco wrote 21 prescriptions for Bicalutamide, about 80% as often as the typical Illinois prescriber of it (26). Medicare paid $16.44 per fill, versus $27.16 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
This medication is used to help relieve severe ongoing pain (such as due to cancer).
Compared with Illinois prescribers
Dr. Greco wrote 21 prescriptions for Fentanyl, about 74% as often as the typical Illinois prescriber of it (28). Medicare paid $84.50 per fill, versus $113.01 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
This medication is used to treat lung cancer.
Compared with Illinois prescribers
Dr. Greco wrote 21 prescriptions for Tagrisso, about 89% as often as the typical Illinois prescriber of it (24). Medicare paid $17,708.62 per fill, versus $16,702.09 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 certain types of cancer (such as acute lymphoblastic leukemia, chronic myeloid leukemia, gastrointestinal stromal tumors, and myelodysplastic/myeloproliferative diseases).
Compared with Illinois prescribers
Dr. Greco wrote 20 prescriptions for Imatinib Mesylate, about as often as the typical Illinois prescriber of it (20). Medicare paid $737.88 per fill, versus $1,632.22 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 alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with Illinois prescribers
Dr. Greco wrote 18 prescriptions for Ondansetron Odt, about 75% as often as the typical Illinois prescriber of it (24). Medicare paid $15.54 per fill, versus $12.49 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
Megestrol is used to treat loss of appetite and weight loss in people with AIDS.
Compared with Illinois prescribers
Dr. Greco wrote 17 prescriptions for Megestrol Acetate, about 80% as often as the typical Illinois prescriber of it (21). Medicare paid $33.43 per fill, versus $61.04 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 depression.
Compared with Illinois prescribers
Dr. Greco wrote 15 prescriptions for Mirtazapine, about 28% as often as the typical Illinois prescriber of it (53). Medicare paid $3.27 per fill, versus $18.12 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
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with Illinois prescribers
Dr. Greco wrote 12 prescriptions for Allopurinol, about 22% as often as the typical Illinois prescriber of it (56). Medicare paid $8.09 per fill, versus $9.73 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
Dabigatran is used to prevent stroke and harmful blood clots (such as in your legs or lungs) if you have a certain type of irregular heartbeat (atrial fibrillation).
Compared with Illinois prescribers
Dr. Greco wrote 12 prescriptions for Dabigatran Etexilate, about 64% as often as the typical Illinois prescriber of it (19). Medicare paid $102.93 per fill, versus $271.34 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
Everolimus is used to treat various types of cancer (such as kidney, breast, pancreas, lung, stomach/intestinal cancers).
Compared with Illinois prescribers
Dr. Greco wrote 12 prescriptions for Everolimus, about 62% as often as the typical Illinois prescriber of it (19). Medicare paid $2,152.67 per fill, versus $2,971.10 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
Valacyclovir is used to treat infections caused by certain types of viruses.
Compared with Illinois prescribers
Dr. Greco wrote 12 prescriptions for Valacyclovir, about half as often as the typical Illinois prescriber of it (21). Medicare paid $30.43 per fill, versus $28.51 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
Enzalutamide is used to treat prostate cancer.
Compared with Illinois prescribers
Dr. Greco wrote 12 prescriptions for Xtandi, about 34% as often as the typical Illinois prescriber of it (35). Medicare paid $13,236.15 per fill, versus $13,469.80 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 help relieve moderate to severe pain.
Compared with Illinois prescribers
Dr. Greco wrote 11 prescriptions for Hydromorphone Hcl, about 41% as often as the typical Illinois prescriber of it (27). Medicare paid $22.57 per fill, versus $21.75 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 a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Illinois prescribers
Dr. Greco wrote 11 prescriptions for Klor-Con M20, about half as often as the typical Illinois prescriber of it (24). Medicare paid $16.89 per fill, versus $16.52 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
This medication contains 2 amide-type local anesthetics, lidocaine and prilocaine.
Compared with Illinois prescribers
Dr. Greco wrote 11 prescriptions for Lidocaine-Prilocaine, about half as often as the typical Illinois prescriber of it (20). Medicare paid $13.88 per fill, versus $14.20 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
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Illinois prescribers
Dr. Greco wrote 11 prescriptions for Pantoprazole Sodium, about 13% as often as the typical Illinois prescriber of it (83). Medicare paid $20.73 per fill, versus $12.56 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
Rivaroxaban is used to prevent blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip or knee replacement surgery.
Compared with Illinois prescribers
Dr. Greco wrote 11 prescriptions for Xarelto, about 24% as often as the typical Illinois prescriber of it (47). Medicare paid $998.86 per fill, versus $923.03 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. Greco’s prescriptions
What does Dr. Greco prescribe most?
In 2024 Medicare Part D data, Dr. Greco's most prescribed medications were Anastrozole (187), Letrozole (138) and Prochlorperazine Maleate (75).
How does Dr. Greco's prescribing compare with other Illinois prescribers?
Of the 44 medications with a state comparison, Dr. Greco prescribes 10 more often than the typical Illinois prescriber, 10 about as often and 24 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Greco 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 Illinois 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.
