PATRICIA S. TSAI MD
Prescription History 1053470708
Ophthalmology in Woodland Hills, CA
Medicare Part D Prescription History
Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for PATRICIA S. TSAI MD, an active Ophthalmology specialist practicing in Woodland Hills, CA. Our medical registry currently tracks 20 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 2,712 documented patient claims. Among these therapy options, the most frequently utilized medication is Latanoprost, which accounts for 628 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 |
|---|---|---|---|
| Latanoprost | 628 | $12.49▼ below CA avg | ▲ More than typical |
About Latanoprost: Latanoprost is used to treat high pressure inside the eye due to glaucoma (open angle type) or other eye diseases (such as ocular hypertension). Show more ▾ It is similar to a natural chemical in the body (prostaglandin) and works by regulating the flow of fluid within the eye which results in lower pressure. Lowering high pressure inside the eye helps to prevent blindness. A prostaglandin F analog used to treat OCULAR HYPERTENSION in patients with GLAUCOMA. In 2023, this provider wrote 628 Medicare prescriptions for Latanoprost, about 3.9 times the volume of the typical California prescriber of this medication (159). Medicare paid an average of $12.49 per fill, versus $21.01 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. 1,409.2 30-Day Fills standardized to 30-day supplies 41,935 Days of Medication total across all patients in 2023 | |||
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 384 | $20.40▼ below CA avg | ▲ More than typical |
About Dorzolamide-Timolol: This product contains two drugs used to treat high pressure inside the eye due to glaucoma (open angle-type) or other eye diseases (such as ocular hypertension). Show more ▾ Lowering high pressure inside the eye helps to prevent blindness. This medication works by decreasing the amount of fluid within the eye. Timolol belongs to a class of drugs known as beta-blockers, and dorzolamide belongs to a class of drugs known as carbonic anhydrase inhibitors. In 2023, this provider wrote 384 Medicare prescriptions for Dorzolamide-Timolol, about 3.3 times the volume of the typical California prescriber of this medication (115). Medicare paid an average of $20.40 per fill, versus $34.52 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. 893 30-Day Fills standardized to 30-day supplies 26,758 Days of Medication total across all patients in 2023 | |||
| Timolol Maleate | 346 | $17.38▼ below CA avg | ▲ More than typical |
About Timolol Maleate: This medication is used to treat high pressure inside the eye due to glaucoma (open angle-type) or other eye diseases (such as ocular hypertension). Show more ▾ Lowering high pressure inside the eye helps to prevent blindness. This medication works by decreasing the amount of fluid within the eye. Timolol belongs to a class of drugs known as beta-blockers. A beta-adrenergic antagonist that is similar in action to PROPRANOLOL; the levo-isomer is more active. Timolol has been proposed as an anti-hypertensive, anti-arrhythmic, anti-angina, and anti-glaucoma agent. It is also used in the treatment of MIGRAINE DISORDERS and tremor. In 2023, this provider wrote 346 Medicare prescriptions for Timolol Maleate, about 15 times the volume of the typical California prescriber of this medication (23). Medicare paid an average of $17.38 per fill, versus $450.88 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. 885.2 30-Day Fills standardized to 30-day supplies 26,537 Days of Medication total across all patients in 2023 | |||
| Prednisolone Acetate | 331 | $54.09 | ▲ More than typical |
About Prednisolone Acetate: This medication is used to treat certain eye conditions due to inflammation or injury. Show more ▾ Prednisolone works by relieving symptoms such as swelling, redness, and itching. It belongs to a class of drugs known as corticosteroids. In 2023, this provider wrote 331 Medicare prescriptions for Prednisolone Acetate, about 2.3 times the volume of the typical California prescriber of this medication (142). Medicare paid an average of $54.09 per fill, versus $51.41 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. 709.5 30-Day Fills standardized to 30-day supplies 20,153 Days of Medication total across all patients in 2023 | |||
| Brimonidine Tartrate | 242 | $12.64▼ below CA avg | ▲ More than typical |
About Brimonidine Tartrate: This medication is used to treat open-angle glaucoma or high fluid pressure in the eye. Show more ▾ Lowering high fluid pressure in the eye reduces the risk of vision loss, nerve damage, or blindness. This medication lowers pressure by allowing better fluid drainage from within the eye and also by reducing the amount of fluid formed in the eye. It is known as an alpha agonist. This drug is not recommended for use in children less than 2 years of age due to an increased risk of serious side effects such as very slowed breathing. Ask the doctor or pharmacist for details. A quinoxaline derivative and ADRENERGIC ALHPA-2 RECEPTOR AGONIST that is used to manage INTRAOCULAR PRESSURE associated with OPEN-ANGLE GLAUCOMA and OCULAR HYPERTENSION. In 2023, this provider wrote 242 Medicare prescriptions for Brimonidine Tartrate, about 3.1 times the volume of the typical California prescriber of this medication (78). Medicare paid an average of $12.64 per fill, versus $43.38 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. 609.3 30-Day Fills standardized to 30-day supplies 18,285 Days of Medication total across all patients in 2023 | |||
| MoxifloxacinMoxifloxacin Hcl | 146 | $14.24▼ below CA avg | ▲ More than typical |
About Moxifloxacin: This medication is a quinolone antibiotic used for eye infections. Show more ▾ A fluoroquinolone that acts as an inhibitor of DNA TOPOISOMERASE II and is used as a broad-spectrum antibacterial agent. In 2023, this provider wrote 146 Medicare prescriptions for Moxifloxacin, about 1.5 times the volume of the typical California prescriber of this medication (99). Medicare paid an average of $14.24 per fill, versus $35.22 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. 154 30-Day Fills standardized to 30-day supplies 3,496 Days of Medication total across all patients in 2023 | |||
| Cyclosporine | 114 | $129.26▼ below CA avg | ▲ More than typical |
About Cyclosporine: Cyclosporine eye drops are used to treat a certain type of dry eyes. Show more ▾ They work by increasing the amount of tears you make. A group of closely related cyclic undecapeptides from the fungi Trichoderma polysporum and Cylindocarpon lucidum. They have some antineoplastic and antifungal action and significant immunosuppressive effects. Cyclosporins have been proposed as adjuvants in tissue and organ transplantation to suppress graft rejection. In 2023, this provider wrote 114 Medicare prescriptions for Cyclosporine, about 3.6 times the volume of the typical California prescriber of this medication (32). Medicare paid an average of $129.26 per fill, versus $516.93 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. 139 30-Day Fills standardized to 30-day supplies 4,050 Days of Medication total across all patients in 2023 | |||
| Acyclovir | 100 | $36.55 | ▲ More than typical |
About Acyclovir: Acyclovir is used to treat infections caused by certain types of viruses. Show more ▾ It treats cold sores around the mouth (caused by herpes simplex), shingles (caused by herpes zoster), and chickenpox. This medication is also used to treat outbreaks of genital herpes. In people with frequent outbreaks, acyclovir is used to help reduce the number of future episodes. Acyclovir is an antiviral drug. However, it is not a cure for these infections. The viruses that cause these infections continue to live in the body even between outbreaks. Acyclovir decreases the severity and length of these outbreaks. It helps the sores heal faster, keeps new sores from forming, and decreases pain/itching. This medication may also help reduce how long pain remains after the sores heal. In addition, in people with a weakened immune system, acyclovir can decrease the risk of the virus spreading to other parts of the body and causing serious infections. A GUANOSINE analog that acts as an antimetabolite. Viruses are especially susceptible. Used especially against herpes. In 2023, this provider wrote 100 Medicare prescriptions for Acyclovir, about 4.2 times the volume of the typical California prescriber of this medication (24). Medicare paid an average of $36.55 per fill, versus $26.52 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. 173.6 30-Day Fills standardized to 30-day supplies 5,210 Days of Medication total across all patients in 2023 | |||
| Fluorometholone | 93 | $163.80 | ▲ More than typical |
About Fluorometholone: This medication is used to treat certain eye conditions due to inflammation or injury. Show more ▾ Fluorometholone works by relieving symptoms such as swelling, redness, and itching. It belongs to a class of drugs known as corticosteroids. A glucocorticoid employed, usually as eye drops, in the treatment of allergic and inflammatory conditions of the eye. It has also been used topically in the treatment of various skin disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p732) In 2023, this provider wrote 93 Medicare prescriptions for Fluorometholone, about 2.6 times the volume of the typical California prescriber of this medication (36). Medicare paid an average of $163.80 per fill, versus $102.55 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. 182.7 30-Day Fills standardized to 30-day supplies 5,380 Days of Medication total across all patients in 2023 | |||
| Dorzolamide Hcl | 57 | $18.69▼ below CA avg | ≈ Typical |
About Dorzolamide Hcl: Dorzolamide is used to treat high pressure inside the eye due to glaucoma (open angle-type) or other eye diseases (such as ocular hypertension). Show more ▾ Lowering high pressure inside the eye helps to prevent blindness. This medication works by decreasing the amount of fluid within the eye. It belongs to a class of drugs known as carbonic anhydrase inhibitors. In 2023, this provider wrote 57 Medicare prescriptions for Dorzolamide Hcl, about the same volume as the typical California prescriber of this medication (55). Medicare paid an average of $18.69 per fill, versus $32.79 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. 144.1 30-Day Fills standardized to 30-day supplies 4,324 Days of Medication total across all patients in 2023 | |||
| Doxycycline Monohydrate | 49 | $34.01 | ▲ More than 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 49 Medicare prescriptions for Doxycycline Monohydrate, about 2 times the volume of the typical California prescriber of this medication (24). Medicare paid an average of $34.01 per fill, versus $19.84 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. 114.6 30-Day Fills standardized to 30-day supplies 3,417 Days of Medication total across all patients in 2023 | |||
| Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha | 49 | $15.43 | ≈ Typical |
About Neomycin-Polymyxin-Dexameth: This medication is used to treat conditions involving swelling (inflammation) of the eyes and to treat or prevent bacterial eye infections. Show more ▾ This product contains neomycin and polymyxin, antibiotics that work by stopping the growth of bacteria. It also contains dexamethasone, an anti-inflammatory corticosteroid that works by reducing swelling. This medication treats/prevents only bacterial eye infections. It will not work for other types of eye infections and may worsen them (such as infections caused by viruses, fungi, mycobacteria). Unnecessary use or overuse of any antibiotic can lead to its decreased effectiveness. In 2023, this provider wrote 49 Medicare prescriptions for Neomycin-Polymyxin-Dexameth, about 1.2 times the volume of the typical California prescriber of this medication (41). Medicare paid an average of $15.43 per fill, versus $14.80 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. 50.3 30-Day Fills standardized to 30-day supplies 1,170 Days of Medication total across all patients in 2023 | |||
| Ketorolac Tromethamine | 38 | $15.91▼ below CA avg | ▼ Less than typical |
About Ketorolac Tromethamine: This medication is used to temporarily relieve itching eyes caused by seasonal allergies. Show more ▾ It is also used to prevent and treat eye swelling due to a certain type of eye surgery (cataract removal). Ketorolac belongs to a class of drugs known as nonsteroidal anti-inflammatory drugs (NSAIDs). It works by blocking certain natural substances in your body to reduce pain and swelling. A pyrrolizine carboxylic acid derivative structurally related to INDOMETHACIN. It is a non-steroidal anti-inflammatory agent used for analgesia for postoperative pain and inhibits cyclooxygenase activity. In 2023, this provider wrote 38 Medicare prescriptions for Ketorolac Tromethamine, about half the volume of the typical California prescriber of this medication (87). Medicare paid an average of $15.91 per fill, versus $25.40 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. 81.8 30-Day Fills standardized to 30-day supplies 2,413 Days of Medication total across all patients in 2023 | |||
| ErythromycinErythromycin Base | 25 | $19.84 | ▼ Less than typical |
About Erythromycin: Erythromycin is used to treat a wide variety of bacterial infections. Show more ▾ It may also be used to prevent certain bacterial infections. Erythromycin is known as a macrolide antibiotic. It works by stopping the growth of bacteria. This antibiotic treats or 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. In 2023, this provider wrote 25 Medicare prescriptions for Erythromycin, about half the volume of the typical California prescriber of this medication (50). Medicare paid an average of $19.84 per fill, versus $15.82 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. 27.3 30-Day Fills standardized to 30-day supplies 377 Days of Medication total across all patients in 2023 | |||
| MethotrexateMethotrexate Sodium | 23 | $17.43▼ below CA avg | ▼ Less than typical |
About Methotrexate: Methotrexate is used to treat certain types of cancer (such as acute lymphoblastic leukemia, non-Hodgkin's lymphoma) or to control severe psoriasis or rheumatoid arthritis that has not responded to other treatments. Show more ▾ It may also be used to control juvenile rheumatoid arthritis. Methotrexate belongs to a class of drugs known as antimetabolites. It works by slowing or stopping the growth of cancer cells and suppressing the immune system. Early treatment of rheumatoid arthritis with more aggressive therapy such as methotrexate helps to reduce further joint damage and to preserve joint function. An antineoplastic antimetabolite with immunosuppressant properties. It is an inhibitor of TETRAHYDROFOLATE DEHYDROGENASE and prevents the formation of tetrahydrofolate, necessary for synthesis of thymidylate, an essential component of DNA. In 2023, this provider wrote 23 Medicare prescriptions for Methotrexate, about a quarter of the volume of the typical California prescriber of this medication (93). Medicare paid an average of $17.43 per fill, versus $40.82 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. 50.1 30-Day Fills standardized to 30-day supplies 1,488 Days of Medication total across all patients in 2023 | |||
| Polymyxin B Sul-TrimethoprimPolymyxin B Sulf/Trimethoprim | 20 | $11.25 | ▼ Less than typical |
About Polymyxin B Sul-Trimethoprim: This medication is used to treat bacterial infections (such as blepharitis, conjunctivitis) of the eye. Show more ▾ It contains 2 antibiotics. Polymyxin B works by killing the bacteria. Trimethoprim works by stopping the growth of the 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. In 2023, this provider wrote 20 Medicare prescriptions for Polymyxin B Sul-Trimethoprim, about a third of the volume of the typical California prescriber of this medication (57). Medicare paid an average of $11.25 per fill, versus $9.97 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. 32.1 30-Day Fills standardized to 30-day supplies 945 Days of Medication total across all patients in 2023 | |||
| Mycophenolate Mofetil | 19 | $283.15 | ▼ 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 2023, this provider wrote 19 Medicare prescriptions for Mycophenolate Mofetil, about 70% of the volume of the typical California prescriber of this medication (27). Medicare paid an average of $283.15 per fill, versus $139.88 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. 28.3 30-Day Fills standardized to 30-day supplies 804 Days of Medication total across all patients in 2023 | |||
| Gatifloxacin | 17 | $51.63▼ below CA avg | ▼ Less than typical |
About Gatifloxacin: This medication is a quinolone antibiotic used for eye infections (such as conjunctivitis). Show more ▾ 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 fluoroquinolone antibacterial agent and DNA TOPOISOMERASE II inhibitor that is used as an ophthalmic solution for the treatment of BACTERIAL CONJUNCTIVITIS. In 2023, this provider wrote 17 Medicare prescriptions for Gatifloxacin, about a third of the volume of the typical California prescriber of this medication (49). Medicare paid an average of $51.63 per fill, versus $55.71 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. 17.5 30-Day Fills standardized to 30-day supplies 436 Days of Medication total across all patients in 2023 | |||
| Gentamicin Sulfate | 17 | $22.18▼ below CA avg | ▼ Less than typical |
About Gentamicin Sulfate: This medication is used to treat bacterial infections (such as blepharitis, conjunctivitis) of the eye and the skin around the eyes (such as eyelids). Show more ▾ It is also used to prevent infection after eye injury or surgery. It belongs to a class of drugs known as aminoglycoside antibiotics. Gentamicin works by killing the 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. This drug should not be used in newborns due to an increased risk of serious side effects. A complex of closely related aminoglycosides obtained from MICROMONOSPORA purpurea and related species. They are broad-spectrum antibiotics, but may cause ear and kidney damage. They act to inhibit PROTEIN BIOSYNTHESIS. In 2023, this provider wrote 17 Medicare prescriptions for Gentamicin Sulfate, about 65% of the volume of the typical California prescriber of this medication (26). Medicare paid an average of $22.18 per fill, versus $47.45 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 675 Days of Medication total across all patients in 2023 | |||
| Difluprednate | 14 | $267.53 | ▼ Less than typical |
About Difluprednate: This medication is used to treat swelling and pain after eye surgery. Show more ▾ It may also be used to treat a certain serious eye problem (endogenous anterior uveitis). This medication belongs to a class of drugs known as corticosteroids. In 2023, this provider wrote 14 Medicare prescriptions for Difluprednate, about a third of the volume of the typical California prescriber of this medication (42). Medicare paid an average of $267.53 per fill, versus $160.49 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. 16.9 30-Day Fills standardized to 30-day supplies 479 Days of Medication total across all patients in 2023 | |||
About this data. The prescription history for PATRICIA S. TSAI MD 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 Ophthalmology prescribing approach at this Woodland Hills, 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.
