DR. CONSTANTIN DASANU M.D., PH.D.
Prescription History 1922120708
Internal Medicine - Hematology & Oncology in Rancho Mirage, CA
What does Dr. Dasanu prescribe?
In 2024, Dr. Dasanu wrote 956 Medicare prescriptions for 23 medications. The most prescribed was Prednisone, with 113 prescriptions for 39 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. Dasanu prescribes.
Medications 23 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 California prescribers.
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 California prescribers
Dr. Dasanu wrote 113 prescriptions for Prednisone, about 2.8 times as often as the typical California prescriber of it (40). Medicare paid $8.61 per fill, versus $5.64 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
This medication is used to treat prostate cancer.
Compared with California prescribers
Dr. Dasanu wrote 104 prescriptions for Abiraterone Acetate, about 1.8 times as often as the typical California prescriber of it (59). Medicare paid $1,461.16 per fill, versus $1,101.95 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 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 California prescribers
Dr. Dasanu wrote 88 prescriptions for Hydroxyurea, about 2.5 times as often as the typical California prescriber of it (35). Medicare paid $13.33 per fill, versus $28.53 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 California prescribers
Dr. Dasanu wrote 66 prescriptions for Ondansetron Odt, about 2.7 times as often as the typical California prescriber of it (25). Medicare paid $32.10 per fill, versus $13.40 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 California prescribers
Dr. Dasanu wrote 65 prescriptions for Eliquis, about 89% as often as the typical California prescriber of it (73). Medicare paid $748.56 per fill, versus $923.33 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 California prescribers
Dr. Dasanu wrote 51 prescriptions for Revlimid, about 1.7 times as often as the typical California prescriber of it (31). Medicare paid $15,754.93 per fill, versus $17,406.67 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
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 California prescribers
Dr. Dasanu wrote 48 prescriptions for Dexamethasone, about 1.4 times as often as the typical California prescriber of it (35). Medicare paid $17.33 per fill, versus $13.93 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
Anastrozole is used to treat breast cancer in women after menopause.
Compared with California prescribers
Dr. Dasanu wrote 43 prescriptions for Anastrozole, about 63% as often as the typical California prescriber of it (68). Medicare paid $16.10 per fill, versus $20.79 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 (mantle cell lymphoma, marginal zone lymphoma, Waldenstrom's macroglobulinemia, chronic lymphocytic leukemia, small lymphocytic lymphoma, follicular lymphoma).
Compared with California prescribers
Dr. Dasanu wrote 42 prescriptions for Brukinsa, about 1.4 times as often as the typical California prescriber of it (30). Medicare paid $12,602.14 per fill, versus $12,543.75 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
Pomalidomide is used to treat certain types of cancers (such as multiple myeloma, Kaposi sarcoma).
Compared with California prescribers
Dr. Dasanu wrote 38 prescriptions for Pomalyst, about 1.4 times as often as the typical California prescriber of it (27). Medicare paid $22,771.77 per fill, versus $22,448.87 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 (chronic lymphocytic leukemia-CLL, small lymphocytic lymphoma-SLL, acute myeloid leukemia-AML).
Compared with California prescribers
Dr. Dasanu wrote 36 prescriptions for Venclexta, about 1.6 times as often as the typical California prescriber of it (23). Medicare paid $7,149.14 per fill, versus $8,838.98 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 bone marrow disorders (myelofibrosis, polycythemia vera).
Compared with California prescribers
Dr. Dasanu wrote 33 prescriptions for Jakafi, about 1.2 times as often as the typical California prescriber of it (28). Medicare paid $17,281.33 per fill, versus $15,437.07 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 California prescribers
Dr. Dasanu wrote 32 prescriptions for Tamoxifen Citrate, about as often as the typical California prescriber of it (35). Medicare paid $11.74 per fill, versus $24.93 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
This medication is used to treat certain types of cancer (such as mantle cell lymphoma, small lymphocytic lymphoma - SLL, chronic lymphocytic leukemia - CLL).
Compared with California prescribers
Dr. Dasanu wrote 29 prescriptions for Calquence, about 1.3 times as often as the typical California prescriber of it (22). Medicare paid $15,304.99 per fill, versus $13,810.38 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
Enzalutamide is used to treat prostate cancer.
Compared with California prescribers
Dr. Dasanu wrote 29 prescriptions for Xtandi, about 86% as often as the typical California prescriber of it (34). Medicare paid $13,616.91 per fill, versus $13,029.46 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
Lenalidomide is used to treat various types of cancers.
Compared with California prescribers
Dr. Dasanu wrote 27 prescriptions for Lenalidomide, about 70% as often as the typical California prescriber of it (39). Medicare paid $12,363.17 per fill, versus $12,547.26 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 a certain type of heart failure (transthyretin-mediated amyloidosis).
Compared with California prescribers
Dr. Dasanu wrote 21 prescriptions for Vyndamax, about half as often as the typical California prescriber of it (37). Medicare paid $22,952.88 per fill, versus $25,182.09 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 a variety of skin conditions (such as eczema, dermatitis, allergies, rash).
Compared with California prescribers
Dr. Dasanu wrote 20 prescriptions for Triamcinolone Acetonide, about half as often as the typical California prescriber of it (43). Medicare paid $19.60 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
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 California prescribers
Dr. Dasanu wrote 19 prescriptions for Imatinib Mesylate, about 86% as often as the typical California prescriber of it (22). Medicare paid $115.26 per fill, versus $905.12 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
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 California prescribers
Dr. Dasanu wrote 16 prescriptions for Warfarin Sodium, about 40% as often as the typical California prescriber of it (40). Medicare paid $8.23 per fill, versus $11.33 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
Levofloxacin is used to treat a variety of bacterial infections.
Compared with California prescribers
Dr. Dasanu wrote 13 prescriptions for Levofloxacin, about half as often as the typical California prescriber of it (27). Medicare paid $4.35 per fill, versus $5.11 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
This medication is used to treat lung cancer.
Compared with California prescribers
Dr. Dasanu wrote 12 prescriptions for Tagrisso, about 34% as often as the typical California prescriber of it (36). Medicare paid $17,289.76 per fill, versus $16,840.72 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 California prescribers
Dr. Dasanu wrote 11 prescriptions for Letrozole, about 22% as often as the typical California prescriber of it (49). Medicare paid $22.52 per fill, versus $22.86 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. Dasanu’s prescriptions
What does Dr. Dasanu prescribe most?
In 2024 Medicare Part D data, Dr. Dasanu's most prescribed medications were Prednisone (113), Abiraterone Acetate (104) and Hydroxyurea (88).
How does Dr. Dasanu's prescribing compare with other California prescribers?
Of the 23 medications with a state comparison, Dr. Dasanu prescribes 10 more often than the typical California prescriber, 5 about as often and 8 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Dasanu 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 California 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.
