BASUKI K. GUNAWAN M.D.
Prescription History 1346352473
Internal Medicine in Downey, CA
Medicare Part D Prescription History
Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for BASUKI K. GUNAWAN M.D., an active Internal Medicine specialist practicing in Downey, CA. Our medical registry currently tracks 16 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 906 documented patient claims. Among these therapy options, the most frequently utilized medication is Gavilyte-C, which accounts for 455 claims alone. Use the table below to sort by claims, cost, or utilization compared with the state average; select any medication for its full profile.
| Medication | Prescriptions (2024)Rx (2024) | Avg Cost per FillCost / Fill | Vs. Other CA PrescribersVs. CA Avg |
|---|---|---|---|
| Gavilyte-CPeg3350/Sod Sulf,bicarb,cl/Kcl | 455 | $22.53 | ▲ More than typical |
About Gavilyte-C: PEG (polyethylene glycol) with electrolyte is used to clean out the intestines before certain bowel exam procedures such as colonoscopy or barium enema X-rays. Show more ▾ It is a laxative that works by drawing large amounts of water into the colon. This effect results in watery bowel movements. Clearing stool from the intestines helps your doctor to better examine the intestines during your procedure. In 2024, this provider wrote 455 Medicare prescriptions for Gavilyte-C, about 4.5 times the volume of the typical California prescriber of this medication (101.5). Medicare paid an average of $22.53 per fill, versus $21.56 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 455 30-Day Fills standardized to 30-day supplies 759 Days of Medication total across all patients in 2024 | |||
| Omeprazole | 118 | $9.05▼ below CA avg | ▲ More than typical |
About Omeprazole: Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers). Show more ▾ It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as heartburn, difficulty swallowing, and cough. This medication helps heal acid damage to the stomach and esophagus, helps prevent ulcers, and may help prevent cancer of the esophagus. Omeprazole belongs to a class of drugs known as proton pump inhibitors (PPIs). If you are self-treating with this medication, over-the-counter omeprazole products are used to treat frequent heartburn (occurring 2 or more days a week). Since it may take 1 to 4 days to have full effect, these products do not relieve heartburn right away. For over-the-counter products, carefully read the package instructions to make sure the product is right for you. Check the ingredients on the label even if you have used the product before. The manufacturer may have changed the ingredients. Also, products with similar brand names may contain different ingredients meant for different purposes. Taking the wrong product could harm you. A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS. In 2024, this provider wrote 118 Medicare prescriptions for Omeprazole, about 1.5 times the volume of the typical California prescriber of this medication (78.1). Medicare paid an average of $9.05 per fill, versus $11.26 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the CA average for this medication. 318.7 30-Day Fills standardized to 30-day supplies 9,512 Days of Medication total across all patients in 2024 | |||
| Mesalamine | 49 | $463.51 | ▲ More than typical |
About Mesalamine: This medication is used to treat a certain bowel disease (ulcerative colitis). Show more ▾ It helps to reduce symptoms of ulcerative colitis such as diarrhea, rectal bleeding, and stomach pain. Mesalamine belongs to a class of drugs known as aminosalicylates. It works by decreasing swelling in the colon. An anti-inflammatory agent, structurally related to the SALICYLATES, which is active in INFLAMMATORY BOWEL DISEASE. It is considered to be the active moiety of SULPHASALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed) In 2024, this provider wrote 49 Medicare prescriptions for Mesalamine, about 1.7 times the volume of the typical California prescriber of this medication (28). Medicare paid an average of $463.51 per fill, versus $446.16 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 118 30-Day Fills standardized to 30-day supplies 3,516 Days of Medication total across all patients in 2024 | |||
| Carvedilol | 44 | $8.36▼ below CA avg | ≈ Typical |
About Carvedilol: Carvedilol is used to treat high blood pressure and heart failure. Show more ▾ It is also used after a heart attack to improve the chance of survival if your heart is not pumping well. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This drug works by blocking the action of certain natural substances in your body, such as epinephrine, on the heart and blood vessels. This effect lowers your heart rate, blood pressure, and strain on your heart. Carvedilol belongs to a class of drugs known as alpha and beta blockers. A carbazole and propanol derivative that acts as a non-cardioselective beta blocker and vasodilator. It has blocking activity for ALPHA 1 ADRENERGIC RECEPTORS and, at higher doses, may function as a blocker of CALCIUM CHANNELS; it also has antioxidant properties. Carvedilol is used in the treatment of HYPERTENSION; ANGINA PECTORIS; and HEART FAILURE. It can also reduce the risk of death following MYOCARDIAL INFARCTION. In 2024, this provider wrote 44 Medicare prescriptions for Carvedilol, about 78% of the volume of the typical California prescriber of this medication (56.5). Medicare paid an average of $8.36 per fill, versus $8.98 statewide. How often this provider prescribes it This provider's prescribing volume for this medication is in line with the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the CA average for this medication. 100 30-Day Fills standardized to 30-day supplies 3,000 Days of Medication total across all patients in 2024 | |||
| Entecavir | 39 | $35.97▼ below CA avg | ▲ More than typical |
About Entecavir: See also Warning section. Show more ▾ Entecavir is used to treat long-term hepatitis B infection. Hepatitis B is an infection of the liver caused by the hepatitis B virus. Long-term infection can cause liver damage, rarely liver cancer, and liver failure. Entecavir helps to decrease the amount of hepatitis B virus in your body. It is unknown if this medication lowers your chance of getting liver cancer or liver damage. Entecavir is an antiviral that belongs to a class of drugs known as hepatitis B virus nucleoside reverse transcriptase inhibitors. Entecavir is not a cure for hepatitis B. It does not prevent the spread of the virus to others through sexual contact or blood/body fluid contamination (such as sharing used needles). In 2024, this provider wrote 39 Medicare prescriptions for Entecavir, about 1.3 times the volume of the typical California prescriber of this medication (30.6). Medicare paid an average of $35.97 per fill, versus $171.02 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the CA average for this medication. 126 30-Day Fills standardized to 30-day supplies 3,780 Days of Medication total across all patients in 2024 | |||
| Ursodiol | 39 | $230.16 | ▲ More than typical |
About Ursodiol: Ursodiol is used to dissolve certain types of gallstones, to prevent gallstones from forming in obese patients who are losing weight rapidly, and to treat a certain type of liver disease (primary biliary cholangitis). Show more ▾ Ursodiol is a bile acid. An epimer of chenodeoxycholic acid. It is a mammalian bile acid found first in the bear and is apparently either a precursor or a product of chenodeoxycholate. Its administration changes the composition of bile and may dissolve gallstones. It is used as a cholagogue and choleretic. In 2024, this provider wrote 39 Medicare prescriptions for Ursodiol, about 1.3 times the volume of the typical California prescriber of this medication (30.6). Medicare paid an average of $230.16 per fill, versus $145.45 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 116.7 30-Day Fills standardized to 30-day supplies 3,500 Days of Medication total across all patients in 2024 | |||
| Azathioprine | 27 | $28.16▼ below CA avg | ≈ Typical |
About Azathioprine: Azathioprine is used to prevent organ rejection in people who have received a kidney transplant. Show more ▾ It is usually taken along with other medications to allow your new kidney to function normally. Azathioprine is also used to treat rheumatoid arthritis. In this condition, the body's defense system (immune system) attacks healthy joints. Azathioprine belongs to a class of drugs known as immunosuppressants. It works by weakening the immune system to help your body accept the new kidney as if it were your own (in the case of an organ transplant) or to prevent further damage to your joints (in the case of rheumatoid arthritis). Talk to your doctor about the risks and benefits of azathioprine, especially when used by children and young adults. An immunosuppressive agent used in combination with cyclophosphamide and hydroxychloroquine in the treatment of rheumatoid arthritis. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance has been listed as a known carcinogen. (Merck Index, 11th ed) In 2024, this provider wrote 27 Medicare prescriptions for Azathioprine, about the same volume as the typical California prescriber of this medication (24.6). Medicare paid an average of $28.16 per fill, versus $47.82 statewide. How often this provider prescribes it This provider's prescribing volume for this medication is in line with the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the CA average for this medication. 85.3 30-Day Fills standardized to 30-day supplies 2,560 Days of Medication total across all patients in 2024 | |||
| Pantoprazole Sodium | 24 | $14.56 | ▼ Less than typical |
About Pantoprazole Sodium: Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux). Show more ▾ It works by decreasing the amount of acid your stomach makes. This medication relieves symptoms such as heartburn, difficulty swallowing, and cough. It helps heal acid damage to the stomach and esophagus, helps prevent ulcers, and may help prevent cancer of the esophagus. Pantoprazole belongs to a class of drugs known as proton pump inhibitors (PPIs). 2-pyridinylmethylsulfinylbenzimidazole proton pump inhibitor that is used in the treatment of GASTROESOPHAGEAL REFLUX and PEPTIC ULCER. In 2024, this provider wrote 24 Medicare prescriptions for Pantoprazole Sodium, about a third of the volume of the typical California prescriber of this medication (64.8). Medicare paid an average of $14.56 per fill, versus $13.87 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 54.7 30-Day Fills standardized to 30-day supplies 1,640 Days of Medication total across all patients in 2024 | |||
| Buspirone Hcl | 18 | $7.50▼ below CA avg | ▼ Less than typical |
About Buspirone Hcl: This medication is used to treat anxiety. Show more ▾ It may help you think more clearly, relax, worry less, and take part in everyday life. It may also help you to feel less jittery and irritable, and may control symptoms such as trouble sleeping, sweating, and pounding heartbeat. Buspirone is a medication for anxiety (anxiolytic) that works by affecting certain natural substances in the brain (neurotransmitters). An anxiolytic agent and serotonin receptor agonist belonging to the azaspirodecanedione class of compounds. Its structure is unrelated to those of the BENZODIAZAPINES, but it has an efficacy comparable to DIAZEPAM. In 2024, this provider wrote 18 Medicare prescriptions for Buspirone Hcl, about half the volume of the typical California prescriber of this medication (36.9). Medicare paid an average of $7.50 per fill, versus $13.30 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the CA average for this medication. 23.7 30-Day Fills standardized to 30-day supplies 710 Days of Medication total across all patients in 2024 | |||
| Lubiprostone | 17 | $98.75▼ below CA avg | ▼ Less than typical |
About Lubiprostone: This medication is used to treat certain types of constipation (chronic idiopathic constipation, irritable bowel syndrome with constipation). Show more ▾ Chronic idiopathic constipation has an unknown cause and is not due to diet, other diseases, or drugs. Lubiprostone is also used to treat constipation caused by opioid medications in people with ongoing pain due to medical conditions other than cancer. This medication may improve symptoms such as bloating and abdominal discomfort, improve stool texture, lessen the need to strain, and decrease the feeling of not completely relieving oneself. Lubiprostone belongs to a class of drugs known as chloride channel activators. It works by increasing the amount of fluid within your intestines, making the passage of stool easier. Member of a bicyclic fatty acid class of compounds derived from PROSTAGLANDIN E1 involved in chloride channel gating. In 2024, this provider wrote 17 Medicare prescriptions for Lubiprostone, about 73% of the volume of the typical California prescriber of this medication (23.4). Medicare paid an average of $98.75 per fill, versus $132.30 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the CA average for this medication. 25.3 30-Day Fills standardized to 30-day supplies 760 Days of Medication total across all patients in 2024 | |||
| Lactulose | 15 | $53.06 | ▼ Less than typical |
About Lactulose: This medication is a laxative used to treat constipation. Show more ▾ It may help to increase the number of bowel movements per day and the number of days you have a bowel movement. Lactulose is a colonic acidifier that works by increasing stool water content and softening the stool. It is a man-made sugar solution. A synthetic disaccharide used in the treatment of constipation and hepatic encephalopathy. It has also been used in the diagnosis of gastrointestinal disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p887) In 2024, this provider wrote 15 Medicare prescriptions for Lactulose, about half the volume of the typical California prescriber of this medication (29.1). Medicare paid an average of $53.06 per fill, versus $52.96 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 15 30-Day Fills standardized to 30-day supplies 238 Days of Medication total across all patients in 2024 | |||
| Prednisone | 14 | $15.22 | ▼ Less than typical |
About Prednisone: Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders. Show more ▾ Prednisone belongs to a class of drugs known as corticosteroids. It decreases your immune system's response to various diseases to reduce symptoms such as swelling and allergic-type reactions. A synthetic anti-inflammatory glucocorticoid derived from CORTISONE. It is biologically inert and converted to PREDNISOLONE in the liver. In 2024, this provider wrote 14 Medicare prescriptions for Prednisone, about a third of the volume of the typical California prescriber of this medication (40.3). Medicare paid an average of $15.22 per fill, versus $5.64 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 34.1 30-Day Fills standardized to 30-day supplies 1,022 Days of Medication total across all patients in 2024 | |||
| Metronidazole | 13 | $9.60▼ below CA avg | ▼ Less than typical |
About Metronidazole: Metronidazole is an antibiotic that is used to treat a wide variety of infections. Show more ▾ It works by stopping the growth of certain bacteria and parasites. This antibiotic treats only certain bacterial and parasitic infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections. Metronidazole may also be used with other medications to treat certain stomach/intestinal ulcers caused by a bacteria (H. pylori). A nitroimidazole used to treat AMEBIASIS; VAGINITIS; TRICHOMONAS INFECTIONS; GIARDIASIS; ANAEROBIC BACTERIA; and TREPONEMAL INFECTIONS. In 2024, this provider wrote 13 Medicare prescriptions for Metronidazole, about 60% of the volume of the typical California prescriber of this medication (21.6). Medicare paid an average of $9.60 per fill, versus $29.58 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the CA average for this medication. 13 30-Day Fills standardized to 30-day supplies 175 Days of Medication total across all patients in 2024 | |||
| XifaxanRifaximin | 12 | $3,232.37 | ▼ Less than typical |
About Xifaxan: This medication is used to treat diarrhea caused by the common bacteria known as E. Show more ▾ coli ("traveler's diarrhea"). Rifaximin should not be used if you have a fever or bloody diarrhea. It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections. Rifaximin is also used to treat irritable bowel syndrome with diarrhea. It is also used to prevent a brain problem caused by liver disease (hepatic encephalopathy). A synthetic rifamycin derivative and anti-bacterial agent that is used for the treatment of GASTROENTERITIS caused by ESCHERICHIA COLI INFECTIONS. It may also be used in the treatment of HEPATIC ENCEPHALOPATHY. In 2024, this provider wrote 12 Medicare prescriptions for Xifaxan, about half the volume of the typical California prescriber of this medication (25). Medicare paid an average of $3,232.37 per fill, versus $2,777.73 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 12 30-Day Fills standardized to 30-day supplies 344 Days of Medication total across all patients in 2024 | |||
| Lansoprazole | 11 | $83.30 | ▼ Less than typical |
About Lansoprazole: Lansoprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers). Show more ▾ It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as heartburn, difficulty swallowing, and cough. This medication helps heal acid damage to the stomach and esophagus, helps prevent ulcers, and may help prevent cancer of the esophagus. Lansoprazole belongs to a class of drugs known as proton pump inhibitors (PPIs). If you are self-treating with this medication, over-the-counter lansoprazole products are used to treat frequent heartburn (occurring 2 or more days a week). Since it may take 1 to 4 days to have full effect, these products do not relieve heartburn right away. For over-the-counter products, carefully read the package instructions to make sure the product is right for you. Check the ingredients on the label even if you have used the product before. The manufacturer may have changed the ingredients. Also, products with similar brand names may contain different ingredients meant for different purposes. Taking the wrong product could harm you. Lansoprazole is not recommended for use in children younger than 1 year due to an increased risk of serious side effects. Ask the doctor or pharmacist for details. A 2,2,2-trifluoroethoxypyridyl derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS. Lansoprazole is a racemic mixture of (R)- and (S)-isomers. In 2024, this provider wrote 11 Medicare prescriptions for Lansoprazole, about half the volume of the typical California prescriber of this medication (25.1). Medicare paid an average of $83.30 per fill, versus $38.98 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 23.7 30-Day Fills standardized to 30-day supplies 710 Days of Medication total across all patients in 2024 | |||
| Mycophenolate Mofetil | 11 | $90.53▼ below CA avg | ▼ Less than typical |
About Mycophenolate Mofetil: Mycophenolate is used in combination with other medications to keep your body from attacking and rejecting your transplanted organ (such as kidney, liver, heart). Show more ▾ It belongs to a class of medications called immunosuppressants. It works by weakening your body's defense system (immune system) to help your body accept the new organ as if it were your own. Compound derived from Penicillium stoloniferum and related species. It blocks de novo biosynthesis of purine nucleotides by inhibition of the enzyme inosine monophosphate dehydrogenase (IMP DEHYDROGENASE). Mycophenolic acid exerts selective effects on the immune system in which it prevents the proliferation of T-CELLS, LYMPHOCYTES, and the formation of antibodies from B-CELLS. It may also inhibit recruitment of LEUKOCYTES to sites of INFLAMMATION. In 2024, this provider wrote 11 Medicare prescriptions for Mycophenolate Mofetil, about a third of the volume of the typical California prescriber of this medication (28.6). Medicare paid an average of $90.53 per fill, versus $132.62 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average CA prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the CA average for this medication. 22.2 30-Day Fills standardized to 30-day supplies 665 Days of Medication total across all patients in 2024 | |||
About this data. The prescription history for BASUKI K. GUNAWAN M.D. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Internal Medicine prescribing approach at this Downey, CA practice.
Reading the costs. Drug costs are gross amounts paid to pharmacies under Part D, including both plan and beneficiary payments. They are not the price a patient pays at the pharmacy counter. Medications with fewer than 11 claims are excluded from the federal source data, and state comparisons use the average among CA prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.
About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.
