SHIRLEY CHIO O.D.
Prescription History 1871960021
Optometrist in Ventura, CA
Medicare Part D Prescription History
Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for SHIRLEY CHIO O.D., an active Optometrist specialist practicing in Ventura, CA. Our medical registry currently tracks 16 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 1,262 documented patient claims. Among these therapy options, the most frequently utilized medication is Latanoprost, which accounts for 503 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 | 503 | $26.23 | ▲ 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 503 Medicare prescriptions for Latanoprost, about 3.2 times the volume of the typical California prescriber of this medication (159). Medicare paid an average of $26.23 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 1,229.8 30-Day Fills standardized to 30-day supplies 36,656 Days of Medication total across all patients in 2023 | |||
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 194 | $47.33 | ▲ 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 194 Medicare prescriptions for Dorzolamide-Timolol, about 1.7 times the volume of the typical California prescriber of this medication (115). Medicare paid an average of $47.33 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 501.7 30-Day Fills standardized to 30-day supplies 15,049 Days of Medication total across all patients in 2023 | |||
| Timolol Maleate | 138 | $20.75▼ 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 138 Medicare prescriptions for Timolol Maleate, about 6 times the volume of the typical California prescriber of this medication (23). Medicare paid an average of $20.75 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. 363.4 30-Day Fills standardized to 30-day supplies 10,895 Days of Medication total across all patients in 2023 | |||
| Brimonidine Tartrate | 69 | $38.05▼ below CA avg | ≈ 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 69 Medicare prescriptions for Brimonidine Tartrate, about 88% of the volume of the typical California prescriber of this medication (78). Medicare paid an average of $38.05 per fill, versus $43.38 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. 182.9 30-Day Fills standardized to 30-day supplies 5,473 Days of Medication total across all patients in 2023 | |||
| ErythromycinErythromycin Base | 57 | $10.92▼ below CA avg | ≈ 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 57 Medicare prescriptions for Erythromycin, about the same volume as the typical California prescriber of this medication (50). Medicare paid an average of $10.92 per fill, versus $15.82 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. 57 30-Day Fills standardized to 30-day supplies 688 Days of Medication total across all patients in 2023 | |||
| Prednisolone Acetate | 41 | $40.43▼ below CA avg | ▼ Less 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 41 Medicare prescriptions for Prednisolone Acetate, about a third of the volume of the typical California prescriber of this medication (142). Medicare paid an average of $40.43 per fill, versus $51.41 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. 51 30-Day Fills standardized to 30-day supplies 1,302 Days of Medication total across all patients in 2023 | |||
| LumiganBimatoprost | 40 | $645.14 | ▼ Less than typical |
About Lumigan: Bimatoprost 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 can help prevent blindness. This medication works by regulating the flow of fluid within the eye to maintain a normal pressure. A cloprostenol-derived amide that is used as an ANTIHYPERTENSIVE AGENT in the treatment of OPEN-ANGLE GLAUCOMA and OCULAR HYPERTENSION. In 2023, this provider wrote 40 Medicare prescriptions for Lumigan, about half the volume of the typical California prescriber of this medication (82). Medicare paid an average of $645.14 per fill, versus $432.66 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. 91.9 30-Day Fills standardized to 30-day supplies 2,747 Days of Medication total across all patients in 2023 | |||
| Dorzolamide Hcl | 37 | $47.05 | ▼ Less than 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 37 Medicare prescriptions for Dorzolamide Hcl, about 67% of the volume of the typical California prescriber of this medication (55). Medicare paid an average of $47.05 per fill, versus $32.79 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. 92.2 30-Day Fills standardized to 30-day supplies 2,765 Days of Medication total across all patients in 2023 | |||
| RestasisCyclosporine | 34 | $1,235.15 | ▼ Less than typical |
About Restasis: 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 34 Medicare prescriptions for Restasis, about a third of the volume of the typical California prescriber of this medication (85). Medicare paid an average of $1,235.15 per fill, versus $947.95 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. 64 30-Day Fills standardized to 30-day supplies 1,860 Days of Medication total across all patients in 2023 | |||
| XiidraLifitegrast | 26 | $1,285.45 | ▼ Less than typical |
About Xiidra: This medication is used to treat dry eye disease. In 2023, this provider wrote 26 Medicare prescriptions for Xiidra, about half the volume of the typical California prescriber of this medication (46). Medicare paid an average of $1,285.45 per fill, versus $938.50 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. 46 30-Day Fills standardized to 30-day supplies 1,380 Days of Medication total across all patients in 2023 | |||
| Cyclosporine | 25 | $907.43 | ≈ 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 25 Medicare prescriptions for Cyclosporine, about 78% of the volume of the typical California prescriber of this medication (32). Medicare paid an average of $907.43 per fill, versus $516.93 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. 60.5 30-Day Fills standardized to 30-day supplies 1,815 Days of Medication total across all patients in 2023 | |||
| Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha | 24 | $13.49▼ below CA avg | ▼ Less than 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 24 Medicare prescriptions for Neomycin-Polymyxin-Dexameth, about half the volume of the typical California prescriber of this medication (41). Medicare paid an average of $13.49 per fill, versus $14.80 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. 24.2 30-Day Fills standardized to 30-day supplies 338 Days of Medication total across all patients in 2023 | |||
| Travoprost | 22 | $360.87 | ▼ Less than typical |
About Travoprost: Travoprost 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 can help prevent blindness. This medication works by regulating the flow of fluid within the eye to maintain a normal pressure. A cloprostenol derivative that is used as an ANTIHYPERTENSIVE AGENT in the treatment of OPEN-ANGLE GLAUCOMA and OCULAR HYPERTENSION. In 2023, this provider wrote 22 Medicare prescriptions for Travoprost, about 63% of the volume of the typical California prescriber of this medication (35). Medicare paid an average of $360.87 per fill, versus $232.53 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. 61.3 30-Day Fills standardized to 30-day supplies 1,840 Days of Medication total across all patients in 2023 | |||
| Alphagan PBrimonidine Tartrate | 20 | $389.01 | ▼ Less than typical |
About Alphagan P: 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 20 Medicare prescriptions for Alphagan P, about a third of the volume of the typical California prescriber of this medication (58). Medicare paid an average of $389.01 per fill, versus $373.95 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. 28.7 30-Day Fills standardized to 30-day supplies 861 Days of Medication total across all patients in 2023 | |||
| MoxifloxacinMoxifloxacin Hcl | 17 | $26.49▼ below CA avg | ▼ Less 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 17 Medicare prescriptions for Moxifloxacin, about 17% of the volume of the typical California prescriber of this medication (99). Medicare paid an average of $26.49 per fill, versus $35.22 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 30-Day Fills standardized to 30-day supplies 214 Days of Medication total across all patients in 2023 | |||
| Azelastine Hcl | 15 | $35.57▼ below CA avg | ▼ Less than typical |
About Azelastine Hcl: This medication is used to relieve nasal symptoms such as runny/itching/stuffy nose, sneezing, and post-nasal drip caused by allergies or other conditions. Show more ▾ Azelastine belongs to a class of drugs known as antihistamines. It works by blocking certain natural substances called histamines that are responsible for nasal symptoms. In 2023, this provider wrote 15 Medicare prescriptions for Azelastine Hcl, about a third of the volume of the typical California prescriber of this medication (46). Medicare paid an average of $35.57 per fill, versus $42.74 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. 19 30-Day Fills standardized to 30-day supplies 555 Days of Medication total across all patients in 2023 | |||
About this data. The prescription history for SHIRLEY CHIO O.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 Optometrist prescribing approach at this Ventura, 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.
