DR. NEILL S COWLES O.D.
Prescription History 1033124607
Optometrist in Chatham, MA

Active since July 30, 2006PECOS EnrolledAccepts Medicare Assignment
259 CROWELL RD, CHATHAM, MA 02633(508) 945-2552(508) 945-0533 Get Directions

NPPES record last updated: November 2, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DR. NEILL S COWLES O.D., an active Optometrist specialist practicing in Chatham, MA. Our medical registry currently tracks 3 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 66 documented patient claims. Among these therapy options, the most frequently utilized medication is Neomycin-Polymyxin-Dexameth, which accounts for 37 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.

3
Medications
66
Total Claims
82
30-Day Fills
Neomycin-Polymyxin-Dexameth
Most Prescribed · 37 claims
View details
3 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by DR. NEILL S COWLES O.D. in 2023, with prescription volumes, average cost per fill, and MA state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other MA PrescribersVs. MA Avg
Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha37$12.94▼ below MA avg 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 37 Medicare prescriptions for Neomycin-Polymyxin-Dexameth, about the same volume as the typical Massachusetts prescriber of this medication (39). Medicare paid an average of $12.94 per fill, versus $14.07 statewide.

How often this provider prescribes it

This provider
37
MA average
39.0

This provider's prescribing volume for this medication is in line with the average MA prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$12.94
MA average
$14.07

This provider's average cost per fill is below the MA average for this medication.

37
30-Day Fills
standardized to 30-day supplies
389
Days of Medication
total across all patients in 2023
CequaCyclosporine15$1,228.13 Less than typical

About Cequa: 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 15 Medicare prescriptions for Cequa, about a third of the volume of the typical Massachusetts prescriber of this medication (38). Medicare paid an average of $1,228.13 per fill, versus $773.22 statewide.

How often this provider prescribes it

This provider
15
MA average
38.0

This provider prescribes this medication less often than the average MA prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$1,228.13
MA average
$773.22

Gross Part D cost per fill; not the patient's out-of-pocket price.

31
30-Day Fills
standardized to 30-day supplies
930
Days of Medication
total across all patients in 2023
Polymyxin B Sul-TrimethoprimPolymyxin B Sulf/Trimethoprim14$8.47▼ below MA avg 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 14 Medicare prescriptions for Polymyxin B Sul-Trimethoprim, about a third of the volume of the typical Massachusetts prescriber of this medication (40). Medicare paid an average of $8.47 per fill, versus $8.68 statewide.

How often this provider prescribes it

This provider
14
MA average
40.0

This provider prescribes this medication less often than the average MA prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$8.47
MA average
$8.68

This provider's average cost per fill is below the MA average for this medication.

14
30-Day Fills
standardized to 30-day supplies
195
Days of Medication
total across all patients in 2023
No medications match the current filters.
More than typical Typical Less than typical= prescription volume vs the average MA prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the MA average cost per fill.

About this data. The prescription history for DR. NEILL S COWLES 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 Chatham, MA 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 MA prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.