DR. SALLY MALIA CHANG M.D.
Prescription History 1528041621
Internal Medicine in Kailua, HI
What does Dr. Chang prescribe?
In 2024, Dr. Chang wrote 1,067 Medicare prescriptions for 29 medications. The most prescribed was Atorvastatin Calcium, with 175 prescriptions for 69 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. Chang prescribes.
Medications 29 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 Hawaii prescribers.
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 Hawaii prescribers
Dr. Chang wrote 175 prescriptions for Atorvastatin Calcium, about 84% as often as the typical Hawaii prescriber of it (208). Medicare paid $34.15 per fill, versus $20.05 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Hawaii prescribers
Dr. Chang wrote 91 prescriptions for Levothyroxine Sodium, about as often as the typical Hawaii prescriber of it (96). Medicare paid $20.52 per fill, versus $9.22 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
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 Hawaii prescribers
Dr. Chang wrote 85 prescriptions for Simvastatin, about 1.2 times as often as the typical Hawaii prescriber of it (71). Medicare paid $28.89 per fill, versus $17.23 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
Irbesartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Hawaii prescribers
Dr. Chang wrote 72 prescriptions for Irbesartan, about 1.6 times as often as the typical Hawaii prescriber of it (44). Medicare paid $48.02 per fill, versus $34.55 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Hawaii prescribers
Dr. Chang wrote 69 prescriptions for Amlodipine Besylate, about half as often as the typical Hawaii prescriber of it (139). Medicare paid $12.52 per fill, versus $11.03 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Hawaii prescribers
Dr. Chang wrote 62 prescriptions for Metformin Hcl, about 76% as often as the typical Hawaii prescriber of it (82). Medicare paid $15.28 per fill, versus $9.49 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
Lisinopril is used to treat high blood pressure.
Compared with Hawaii prescribers
Dr. Chang wrote 59 prescriptions for Lisinopril, about 70% as often as the typical Hawaii prescriber of it (84). Medicare paid $9.35 per fill, versus $10.34 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
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Hawaii prescribers
Dr. Chang wrote 55 prescriptions for Losartan Potassium, about 38% as often as the typical Hawaii prescriber of it (143). Medicare paid $29.28 per fill, versus $14.03 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
Ramipril is used to treat high blood pressure (hypertension).
Compared with Hawaii prescribers
Dr. Chang wrote 51 prescriptions for Ramipril, about 2.1 times as often as the typical Hawaii prescriber of it (24). Medicare paid $11.20 per fill, versus $24.59 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
This medication is used to treat high blood pressure.
Compared with Hawaii prescribers
Dr. Chang wrote 34 prescriptions for Hydrochlorothiazide, about 69% as often as the typical Hawaii prescriber of it (49). Medicare paid $12.87 per fill, versus $6.07 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
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with Hawaii prescribers
Dr. Chang wrote 30 prescriptions for Ezetimibe, about 71% as often as the typical Hawaii prescriber of it (42). Medicare paid $71.77 per fill, versus $47.14 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
Valsartan is used to treat high blood pressure and heart failure.
Compared with Hawaii prescribers
Dr. Chang wrote 25 prescriptions for Valsartan, about 86% as often as the typical Hawaii prescriber of it (29). Medicare paid $83.99 per fill, versus $36.94 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
Donepezil is used to treat confusion (dementia) related to Alzheimer's disease.
Compared with Hawaii prescribers
Dr. Chang wrote 23 prescriptions for Donepezil Hcl, about half as often as the typical Hawaii prescriber of it (44). Medicare paid $24.76 per fill, versus $15.36 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
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with Hawaii prescribers
Dr. Chang wrote 22 prescriptions for Montelukast Sodium, about half as often as the typical Hawaii prescriber of it (37). Medicare paid $44.17 per fill, versus $24.80 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
Pravastatin 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 Hawaii prescribers
Dr. Chang wrote 20 prescriptions for Pravastatin Sodium, about 41% as often as the typical Hawaii prescriber of it (49). Medicare paid $34.44 per fill, versus $21.28 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 a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Hawaii prescribers
Dr. Chang wrote 18 prescriptions for Metoprolol Succinate, about 21% as often as the typical Hawaii prescriber of it (85). Medicare paid $20.03 per fill, versus $17.36 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
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with Hawaii prescribers
Dr. Chang wrote 17 prescriptions for Albuterol Sulfate Hfa, about 31% as often as the typical Hawaii prescriber of it (54). Medicare paid $31.81 per fill, versus $25.92 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 Hawaii prescribers
Dr. Chang wrote 15 prescriptions for Allopurinol, about 24% as often as the typical Hawaii prescriber of it (61). Medicare paid $18.37 per fill, versus $12.13 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
Diltiazem is used to treat high blood pressure (hypertension) and prevent chest pain (angina).
Compared with Hawaii prescribers
Dr. Chang wrote 15 prescriptions for Diltiazem 24hr Er (Cd), about 62% as often as the typical Hawaii prescriber of it (24). Medicare paid $159.31 per fill, versus $41.53 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Hawaii prescribers
Dr. Chang wrote 15 prescriptions for Synthroid, about half as often as the typical Hawaii prescriber of it (28). Medicare paid $17.23 per fill, versus $48.42 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 along with a proper diet and exercise to lower cholesterol in people with high levels of cholesterol in the blood.
Compared with Hawaii prescribers
Dr. Chang wrote 14 prescriptions for Colesevelam Hcl, about 66% as often as the typical Hawaii prescriber of it (21). Medicare paid $663.50 per fill, versus $335.31 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
Sitagliptin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Hawaii prescribers
Dr. Chang wrote 14 prescriptions for Januvia, about half as often as the typical Hawaii prescriber of it (33). Medicare paid $1,586.63 per fill, versus $1,201.09 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 drug is used to treat high blood pressure.
Compared with Hawaii prescribers
Dr. Chang wrote 14 prescriptions for Valsartan-Hydrochlorothiazide, about half as often as the typical Hawaii prescriber of it (28). Medicare paid $76.87 per fill, versus $51.20 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
Famotidine is used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed.
Compared with Hawaii prescribers
Dr. Chang wrote 13 prescriptions for Famotidine, about 29% as often as the typical Hawaii prescriber of it (45). Medicare paid $28.06 per fill, versus $24.13 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 Hawaii prescribers
Dr. Chang wrote 13 prescriptions for Rosuvastatin Calcium, about 15% as often as the typical Hawaii prescriber of it (87). Medicare paid $56.71 per fill, versus $33.22 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
Clopidogrel is used to prevent heart attacks and strokes in persons with heart disease (recent heart attack), recent stroke, or blood circulation disease (peripheral vascular disease).
Compared with Hawaii prescribers
Dr. Chang wrote 12 prescriptions for Clopidogrel, about 32% as often as the typical Hawaii prescriber of it (38). Medicare paid $23.43 per fill, versus $21.05 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
Fluticasone is used to relieve seasonal and year-round allergic and non-allergic nasal symptoms, such as stuffy/runny nose, itching, and sneezing.
Compared with Hawaii prescribers
Dr. Chang wrote 12 prescriptions for Fluticasone Propionate, about 27% as often as the typical Hawaii prescriber of it (45). Medicare paid $9.91 per fill, versus $17.77 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
Levalbuterol is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with Hawaii prescribers
Dr. Chang wrote 11 prescriptions for Levalbuterol Tartrate Hfa, about 69% as often as the typical Hawaii prescriber of it (16). Medicare paid $55.78 per fill, versus $64.88 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
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with Hawaii prescribers
Dr. Chang wrote 11 prescriptions for Sertraline Hcl, about 34% as often as the typical Hawaii prescriber of it (32). Medicare paid $6.89 per fill, versus $11.46 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. Chang’s prescriptions
What does Dr. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed medications were Atorvastatin Calcium (175), Levothyroxine Sodium (91) and Simvastatin (85).
How does Dr. Chang's prescribing compare with other Hawaii prescribers?
Of the 29 medications with a state comparison, Dr. Chang prescribes 2 more often than the typical Hawaii prescriber, 5 about as often and 22 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Chang 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 Hawaii 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.
