DONALD WHANG M.D.
Prescription History 1922325521
Internal Medicine - Infectious Disease in Torrance, CA
Medicare Part D Prescription History
Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DONALD WHANG M.D., an active Infectious Disease specialist practicing in Torrance, CA. Our medical registry currently tracks 17 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 272 documented patient claims. Among these therapy options, the most frequently utilized medication is Biktarvy, which accounts for 51 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 (2023)Rx (2023) | Avg Cost per FillCost / Fill | Vs. Other CA PrescribersVs. CA Avg |
|---|---|---|---|
| BiktarvyBictegrav/Emtricit/Tenofov Ala | 51 | $10,312.95 | ▼ Less than typical |
About Biktarvy: This combination product is used by itself to help control HIV infection. Show more ▾ It helps to decrease the amount of HIV in your body so your immune system can work better. This lowers your chance of getting HIV complications (such as new infections, cancer) and improves your quality of life. This product is a combination of 3 different drugs: bictegravir, emtricitabine, and tenofovir alafenamide. Bictegravir is called an integrase strand transfer inhibitor-INSTI. Emtricitabine is called a nucleoside reverse transcriptase inhibitor, while tenofovir alafenamide is called a nucleotide reverse transcriptase inhibitor. Emtricitabine and tenofovir alafenamide are often called NRTIs. Bictegravir/emtricitabine/tenofovir alafenamide is not a cure for HIV infection. To decrease your risk of spreading HIV disease to others, continue to take all HIV medications exactly as prescribed by your doctor. Use an effective barrier method (latex or polyurethane condoms/dental dams) during sexual activity as directed by your doctor. Do not share personal items (such as needles/syringes, toothbrushes, and razors) that may have contacted blood or other body fluids. Consult your doctor or pharmacist for more details. In 2023, this provider wrote 51 Medicare prescriptions for Biktarvy, about 69% of the volume of the typical California prescriber of this medication (74). Medicare paid an average of $10,312.95 per fill, versus $4,266.43 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. 153 30-Day Fills standardized to 30-day supplies 4,590 Days of Medication total across all patients in 2023 | |||
| Terazosin Hcl | 21 | $40.45▼ below CA avg | ▼ Less than typical |
About Terazosin Hcl: Terazosin is used alone or with other drugs to treat high blood pressure (hypertension). Show more ▾ Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This medication works by relaxing blood vessels so blood can flow more easily. Terazosin is also used in men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH). It does not shrink the prostate, but it works by relaxing the muscles in the prostate and part of the bladder. This helps to relieve symptoms of BPH such as difficulty in beginning the flow of urine, weak stream, and the need to urinate frequently or urgently (including during the middle of the night). Terazosin belongs to a class of drugs known as alpha blockers. In 2023, this provider wrote 21 Medicare prescriptions for Terazosin Hcl, about half the volume of the typical California prescriber of this medication (36). Medicare paid an average of $40.45 per fill, versus $40.87 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 This provider's average cost per fill is below the CA average for this medication. 69.6 30-Day Fills standardized to 30-day supplies 2,090 Days of Medication total across all patients in 2023 | |||
| Ritonavir | 18 | $124.42▼ below CA avg | ▼ Less than typical |
About Ritonavir: This drug is used with other HIV medications to help control HIV infection. Show more ▾ It helps to decrease the amount of HIV in your body so your immune system can work better. This lowers your chance of getting HIV complications (such as new infections, cancer) and improves your quality of life. Ritonavir belongs to a class of drugs known as protease inhibitors. It increases (boosts) the levels of other protease inhibitors, which helps these medications work better. Ritonavir is not a cure for HIV infection. To decrease your risk of spreading HIV disease to others, continue to take all HIV medications exactly as prescribed by your doctor. Use an effective barrier method (latex or polyurethane condoms/dental dams) during sexual activity as directed by your doctor. Do not share personal items (such as needles/syringes, toothbrushes, and razors) that may have contacted blood or other body fluids. Consult your doctor or pharmacist for more details. An HIV protease inhibitor that works by interfering with the reproductive cycle of HIV. It also inhibits CYTOCHROME P-450 CYP3A. In 2023, this provider wrote 18 Medicare prescriptions for Ritonavir, about 67% of the volume of the typical California prescriber of this medication (27). Medicare paid an average of $124.42 per fill, versus $162.01 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. 54 30-Day Fills standardized to 30-day supplies 1,620 Days of Medication total across all patients in 2023 | |||
| Doxycycline Monohydrate | 18 | $184.99 | ≈ Typical |
About Doxycycline Monohydrate: This medication is used to treat a certain type of skin condition called rosacea. Show more ▾ It helps to reduce the number of pimples and bumps on the face, but it may not decrease redness. It works by reducing skin inflammation caused by rosacea. Although doxycycline belongs to the class of antibiotics known as tetracyclines, this product does not work as an antibiotic because it does not stop the growth of bacteria. Do not use this product to treat any infection, including viral infections (such as the common cold, flu). Use this medication only as prescribed by your doctor. A plant family of the order Dipsacales, subclass Asteridae, class Magnoliopsida. Members of this family are sometimes classified in CAPRIFOLIACEAE. In 2023, this provider wrote 18 Medicare prescriptions for Doxycycline Monohydrate, about 75% of the volume of the typical California prescriber of this medication (24). Medicare paid an average of $184.99 per fill, versus $19.84 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 18.4 30-Day Fills standardized to 30-day supplies 536 Days of Medication total across all patients in 2023 | |||
| Fluconazole | 18 | $200.89 | ≈ Typical |
About Fluconazole: Fluconazole is used to treat vaginal yeast infections. Show more ▾ It works by stopping the growth of common types of vaginal yeast (fungus). This medication belongs to a class of drugs called azole antifungals. Triazole antifungal agent that is used to treat oropharyngeal CANDIDIASIS and cryptococcal MENINGITIS in AIDS. In 2023, this provider wrote 18 Medicare prescriptions for Fluconazole, about the same volume as the typical California prescriber of this medication (20). Medicare paid an average of $200.89 per fill, versus $26.76 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 24.3 30-Day Fills standardized to 30-day supplies 691 Days of Medication total across all patients in 2023 | |||
| Ciprofloxacin Hcl | 16 | $23.30 | ▼ Less than typical |
About Ciprofloxacin Hcl: This medication is used to treat eye infections. Show more ▾ Ciprofloxacin belongs to a class of drugs called quinolone antibiotics. It works by stopping the growth of bacteria. This medication treats only bacterial eye infections. It will not work for other types of eye infections. Unnecessary use or overuse of any antibiotic can lead to its decreased effectiveness. A broad-spectrum antimicrobial carboxyfluoroquinoline. In 2023, this provider wrote 16 Medicare prescriptions for Ciprofloxacin Hcl, about half the volume of the typical California prescriber of this medication (29). Medicare paid an average of $23.30 per fill, versus $7.51 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. 22 30-Day Fills standardized to 30-day supplies 635 Days of Medication total across all patients in 2023 | |||
| Minocycline Hcl | 13 | $44.85 | ▼ Less than typical |
About Minocycline Hcl: This medication is used to treat acne or rosacea. Show more ▾ Minocycline belongs to a class of drugs known as tetracycline antibiotics. However, it is not used to treat skin infections. It helps decrease pimples and red bumps that happen with acne or rosacea. A TETRACYCLINE analog, having a 7-dimethylamino and lacking the 5 methyl and hydroxyl groups, which is effective against tetracycline-resistant STAPHYLOCOCCUS infections. In 2023, this provider wrote 13 Medicare prescriptions for Minocycline Hcl, about half the volume of the typical California prescriber of this medication (26). Medicare paid an average of $44.85 per fill, versus $33.84 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. 16 30-Day Fills standardized to 30-day supplies 480 Days of Medication total across all patients in 2023 | |||
| Isoniazid | 13 | $40.39 | ▼ Less than typical |
About Isoniazid: Isoniazid is used with other medications to treat active tuberculosis (TB) infections. Show more ▾ It is also used alone to prevent active TB infections in people who may be infected with the bacteria (people with positive TB skin test). Isoniazid is an antibiotic and 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. Antibacterial agent used primarily as a tuberculostatic. It remains the treatment of choice for tuberculosis. In 2023, this provider wrote 13 Medicare prescriptions for Isoniazid, about half the volume of the typical California prescriber of this medication (22). Medicare paid an average of $40.39 per fill, versus $10.01 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. 40 30-Day Fills standardized to 30-day supplies 1,200 Days of Medication total across all patients in 2023 | |||
| GenvoyaElviteg/Cob/Emtri/Tenof Alafen | 13 | $10,293.59 | ▼ Less than typical |
About Genvoya: This product is used to help control HIV infection. Show more ▾ It helps to decrease the amount of HIV in your body so your immune system can work better. This lowers your chance of getting HIV complications (such as new infections, cancer) and improves your quality of life. This product contains 4 different medications: elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide. Elvitegravir is known as an integrase inhibitor. Cobicistat helps elvitegravir work better. Emtricitabine is called a nucleoside reverse transcriptase inhibitor, while tenofovir alafenamide is called a nucleotide reverse transcriptase inhibitor; both kinds of drugs are often called NRTIs. Elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide is not a cure for HIV infection. To decrease your risk of spreading HIV disease to others, continue to take all HIV medications exactly as prescribed by your doctor. Use an effective barrier method (latex or polyurethane condoms/dental dams) during sexual activity as directed by your doctor. Do not share personal items (such as needles/syringes, toothbrushes, and razors) that may have contacted blood or other body fluids. Consult your doctor or pharmacist for more details. A pharmaceutical preparation of the ANTI-HIV AGENTS elvitegravir, cobicistat, emtricitabine, and tenofovir disoproxil fumarate that is used in the treatment of HIV INFECTIONS. In 2023, this provider wrote 13 Medicare prescriptions for Genvoya, about a third of the volume of the typical California prescriber of this medication (31). Medicare paid an average of $10,293.59 per fill, versus $4,336.38 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. 39 30-Day Fills standardized to 30-day supplies 1,170 Days of Medication total across all patients in 2023 | |||
| DovatoDolutegravir Sodium/Lamivudine | 12 | $8,807.91 | ▼ Less than typical |
About Dovato: This product contains 2 drugs: dolutegravir and lamivudine. Show more ▾ It is used to help control HIV infection. It helps to decrease the amount of HIV in your body so your immune system can work better. This lowers your chance of getting HIV complications (such as new infections, cancer) and improves your quality of life. Lamivudine belongs to a class of drugs known as nucleoside reverse transcriptase inhibitors (NRTIs). Dolutegravir belongs to a class of drugs known as integrase inhibitors. This medication is not a cure for HIV infection. To decrease your risk of spreading HIV disease to others, continue to take all HIV medications exactly as prescribed by your doctor. Use an effective barrier method (latex or polyurethane condoms/dental dams) during sexual activity as directed by your doctor. Do not share personal items (such as needles/syringes, toothbrushes, and razors) that may have contacted blood or other body fluids. Consult your doctor or pharmacist for more details. In 2023, this provider wrote 12 Medicare prescriptions for Dovato, about a third of the volume of the typical California prescriber of this medication (38). Medicare paid an average of $8,807.91 per fill, versus $3,000.68 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. 36 30-Day Fills standardized to 30-day supplies 1,080 Days of Medication total across all patients in 2023 | |||
| PrezcobixDarunavir/Cobicistat | 12 | $7,465.59 | ▼ Less than typical |
About Prezcobix: This product is used with other HIV medications to help control HIV infection. Show more ▾ It helps to decrease the amount of HIV in your body so your immune system can work better. This lowers your chance of getting HIV complications (such as new infections, cancer) and improves your quality of life. This product is a combination of two different drugs: darunavir and cobicistat. Darunavir belongs to a class of drugs known as protease inhibitors. Cobicistat is used to increase (boost) the levels of darunavir. Darunavir/cobicistat is not a cure for HIV infection. To decrease your risk of spreading HIV disease to others, continue to take all HIV medications exactly as prescribed by your doctor. Use an effective barrier method (latex or polyurethane condoms/dental dams) during sexual activity as directed by your doctor. Do not share personal items (such as needles/syringes, toothbrushes, and razors) that may have contacted blood or other body fluids. Consult your doctor or pharmacist for more details. In 2023, this provider wrote 12 Medicare prescriptions for Prezcobix, about a third of the volume of the typical California prescriber of this medication (35). Medicare paid an average of $7,465.59 per fill, versus $2,823.95 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. 36 30-Day Fills standardized to 30-day supplies 1,080 Days of Medication total across all patients in 2023 | |||
| PrezistaDarunavir | 12 | $4,247.83 | ▼ Less than typical |
About Prezista: This drug is used with other HIV medications to help control HIV infection. Show more ▾ It helps to decrease the amount of HIV in your body so your immune system can work better. This lowers your chance of getting HIV complications (such as new infections, cancer) and improves your quality of life. Darunavir belongs to a class of drugs known as protease inhibitors. Darunavir must be given with certain other medications (such as cobicistat, ritonavir) to increase (boost) the levels of darunavir. This helps darunavir work better. Darunavir is not a cure for HIV infection. To decrease your risk of spreading HIV disease to others, continue to take all HIV medications exactly as prescribed by your doctor. Use an effective barrier method (latex or polyurethane condoms/dental dams) during sexual activity as directed by your doctor. Do not share personal items (such as needles/syringes, toothbrushes, and razors) that may have contacted blood or other body fluids. Consult your doctor or pharmacist for more details. This medication is not recommended for use in children younger than 3 years due to the increased risk of serious side effects. An HIV PROTEASE INHIBITOR that is used in the treatment of AIDS and HIV INFECTIONS. Due to the emergence of ANTIVIRAL DRUG RESISTANCE when used alone, it is administered in combination with other ANTI-HIV AGENTS. In 2023, this provider wrote 12 Medicare prescriptions for Prezista, about half the volume of the typical California prescriber of this medication (27). Medicare paid an average of $4,247.83 per fill, versus $2,478.03 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. 24 30-Day Fills standardized to 30-day supplies 720 Days of Medication total across all patients in 2023 | |||
| JulucaDolutegravir/Rilpivirine | 11 | $7,929.04 | ▼ Less than typical |
About Juluca: Dolutegravir/rilpivirine is used to help control HIV infection. Show more ▾ It helps to decrease the amount of HIV in your body so your immune system can work better. This lowers your chance of getting HIV complications (such as new infections, cancer) and improves your quality of life. Dolutegravir is an integrase inhibitor while rilpivirine is a non-nucleoside reverse transcriptase inhibitor (NNRTI). Both drugs block the virus from growing and infecting more cells. Dolutegravir/rilpivirine is not a cure for HIV infection. To decrease your risk of spreading HIV disease to others, continue to take all HIV medications exactly as prescribed by your doctor. Use an effective barrier method (latex or polyurethane condoms/dental dams) during sexual activity as directed by your doctor. Do not share personal items (such as needles/syringes, toothbrushes, and razors) that may have contacted blood or other body fluids. Consult your doctor or pharmacist for more details. In 2023, this provider wrote 11 Medicare prescriptions for Juluca, about a third of the volume of the typical California prescriber of this medication (32). Medicare paid an average of $7,929.04 per fill, versus $3,695.67 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. 25 30-Day Fills standardized to 30-day supplies 750 Days of Medication total across all patients in 2023 | |||
| Rifabutin | 11 | $693.30 | ▼ Less than typical |
About Rifabutin: This medication is used alone or with another medication to help prevent a certain serious infection (Mycobacterium avium complex-MAC). Show more ▾ Rifabutin is known as a rifamycin antibiotic. It works by stopping the growth of bacteria. This antibiotic treats and prevents 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. A broad-spectrum antibiotic that is being used as prophylaxis against disseminated Mycobacterium avium complex infection in HIV-positive patients. In 2023, this provider wrote 11 Medicare prescriptions for Rifabutin, about 73% of the volume of the typical California prescriber of this medication (15). Medicare paid an average of $693.30 per fill, versus $586.58 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 32 30-Day Fills standardized to 30-day supplies 960 Days of Medication total across all patients in 2023 | |||
| Cefdinir | 11 | $78.69 | ▼ Less than typical |
About Cefdinir: Cefdinir is used to treat a wide variety of bacterial infections. Show more ▾ This medication is known as a cephalosporin antibiotic. 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. A third-generation oral cephalosporin antibacterial agent that is used to treat bacterial infections of the respiratory tract and skin. In 2023, this provider wrote 11 Medicare prescriptions for Cefdinir, about half the volume of the typical California prescriber of this medication (26). Medicare paid an average of $78.69 per fill, versus $20.30 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 11 30-Day Fills standardized to 30-day supplies 330 Days of Medication total across all patients in 2023 | |||
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 11 | $19.51 | ▼ Less than typical |
About Sulfamethoxazole-Trimethoprim: This medication is a combination of two antibiotics: sulfamethoxazole and trimethoprim. Show more ▾ It is used to treat a wide variety of bacterial infections (such as middle ear, urine, respiratory, and intestinal infections). It is also used to prevent and treat a certain type of pneumonia (pneumocystis-type). This medication should not be used by children less than 2 months of age due to the risk of serious side effects. This medication treats only certain types of infections. It will not work for viral infections (such as flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness. A drug combination with broad-spectrum antibacterial activity against both gram-positive and gram-negative organisms. It is effective in the treatment of many infections, including PNEUMOCYSTIS PNEUMONIA in AIDS. In 2023, this provider wrote 11 Medicare prescriptions for Sulfamethoxazole-Trimethoprim, about half the volume of the typical California prescriber of this medication (25). Medicare paid an average of $19.51 per fill, versus $5.87 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. 24.7 30-Day Fills standardized to 30-day supplies 707 Days of Medication total across all patients in 2023 | |||
| Azithromycin | 11 | $29.50 | ▼ Less than typical |
About Azithromycin: This medication is used to treat certain eye infections. Show more ▾ It is a macrolide antibiotic that works by stopping the growth of bacteria. This medication treats only bacterial eye infections. It will not work for other types of eye infections. Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness. A semi-synthetic macrolide antibiotic structurally related to ERYTHROMYCIN. It has been used in the treatment of Mycobacterium avium intracellulare infections, toxoplasmosis, and cryptosporidiosis. In 2023, this provider wrote 11 Medicare prescriptions for Azithromycin, about a third of the volume of the typical California prescriber of this medication (38). Medicare paid an average of $29.50 per fill, versus $7.94 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. 31.6 30-Day Fills standardized to 30-day supplies 948 Days of Medication total across all patients in 2023 | |||
About this data. The prescription history for DONALD WHANG M.D. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2023, 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 Infectious Disease prescribing approach at this Torrance, 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 volume among CA prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.
