MICHAEL F OATS MD
Prescription History 1669450607
Ophthalmology in Sandwich, MA
What does Dr. Oats prescribe?
In 2024, Dr. Oats wrote 6,576 Medicare prescriptions for 43 medications. The most prescribed was Latanoprost, with 1,392 prescriptions for 378 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Oats prescribes.
Medications 43 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other Massachusetts prescribers.
What it is used for
Latanoprost is used to treat high pressure inside the eye due to glaucoma (open angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 1,392 prescriptions for Latanoprost, about 8.2 times as often as the typical Massachusetts prescriber of it (170). Medicare paid $13.18 per fill, versus $13.23 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain eye conditions due to inflammation or injury.
Compared with Massachusetts prescribers
Dr. Oats wrote 780 prescriptions for Prednisolone Acetate, about 5.2 times as often as the typical Massachusetts prescriber of it (149). Medicare paid $28.45 per fill, versus $40.61 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Bimatoprost is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 662 prescriptions for Lumigan, about 12 times as often as the typical Massachusetts prescriber of it (55). Medicare paid $569.07 per fill, versus $527.29 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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).
Compared with Massachusetts prescribers
Dr. Oats wrote 568 prescriptions for Timolol Maleate, about 5.3 times as often as the typical Massachusetts prescriber of it (107). Medicare paid $31.40 per fill, versus $24.95 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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).
Compared with Massachusetts prescribers
Dr. Oats wrote 385 prescriptions for Dorzolamide-Timolol, about 4 times as often as the typical Massachusetts prescriber of it (96). Medicare paid $18.36 per fill, versus $19.13 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dorzolamide is used to treat high pressure inside the eye due to glaucoma (open angle-type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 372 prescriptions for Dorzolamide Hcl, about 5.5 times as often as the typical Massachusetts prescriber of it (68). Medicare paid $18.93 per fill, versus $21.16 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat open-angle glaucoma or high fluid pressure in the eye.
Compared with Massachusetts prescribers
Dr. Oats wrote 273 prescriptions for Brimonidine Tartrate, about 3.1 times as often as the typical Massachusetts prescriber of it (89). Medicare paid $18.13 per fill, versus $42.13 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a variety of bacterial infections.
Compared with Massachusetts prescribers
Dr. Oats wrote 271 prescriptions for Ciprofloxacin Hcl, about 11 times as often as the typical Massachusetts prescriber of it (26). Medicare paid $9.81 per fill, versus $6.00 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Latanoprostene bunod is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 245 prescriptions for Vyzulta, about 5.5 times as often as the typical Massachusetts prescriber of it (45). Medicare paid $579.67 per fill, versus $546.16 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to temporarily relieve itching eyes caused by seasonal allergies.
Compared with Massachusetts prescribers
Dr. Oats wrote 216 prescriptions for Ketorolac Tromethamine, about 1.8 times as often as the typical Massachusetts prescriber of it (122). Medicare paid $10.80 per fill, versus $16.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 164 prescriptions for Combigan, about 5 times as often as the typical Massachusetts prescriber of it (33). Medicare paid $451.45 per fill, versus $422.25 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat swelling (inflammation) and pain in the eye after a certain type of eye surgery (cataract surgery).
Compared with Massachusetts prescribers
Dr. Oats wrote 104 prescriptions for Prolensa, about 2.3 times as often as the typical Massachusetts prescriber of it (46). Medicare paid $350.12 per fill, versus $436.37 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Travoprost is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 80 prescriptions for Travoprost, about 2.6 times as often as the typical Massachusetts prescriber of it (31). Medicare paid $274.00 per fill, versus $194.06 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Netarsudil/latanoprost is used to treat high pressure inside the eye due to certain eye conditions (such as open-angle glaucoma, ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 75 prescriptions for Rocklatan, about 1.8 times as often as the typical Massachusetts prescriber of it (41). Medicare paid $680.82 per fill, versus $564.90 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Bimatoprost is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 73 prescriptions for Bimatoprost, about 2 times as often as the typical Massachusetts prescriber of it (36). Medicare paid $74.82 per fill, versus $109.58 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product contains two medications used to treat high pressure in the eye due to glaucoma (open-angle glaucoma-type) or a certain other eye disease (ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 69 prescriptions for Simbrinza, about 2.3 times as often as the typical Massachusetts prescriber of it (30). Medicare paid $360.42 per fill, versus $290.04 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 66 prescriptions for Brimonidine Tartrate-Timolol, about 2.3 times as often as the typical Massachusetts prescriber of it (29). Medicare paid $166.19 per fill, versus $166.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Cyclosporine eye drops are used to treat a certain type of dry eyes.
Compared with Massachusetts prescribers
Dr. Oats wrote 63 prescriptions for Restasis, about 1.4 times as often as the typical Massachusetts prescriber of it (46). Medicare paid $1,341.17 per fill, versus $1,033.90 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Netarsudil is used to treat high pressure inside the eye due to certain eye conditions (such as open-angle glaucoma, ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 59 prescriptions for Rhopressa, about as often as the typical Massachusetts prescriber of it (54). Medicare paid $587.98 per fill, versus $516.27 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a wide variety of bacterial infections, including those that cause acne.
Compared with Massachusetts prescribers
Dr. Oats wrote 57 prescriptions for Doxycycline Monohydrate, about 2.1 times as often as the typical Massachusetts prescriber of it (27). Medicare paid $14.35 per fill, versus $12.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat swelling (inflammation) and pain in the eye after a certain type of eye surgery (cataract surgery).
Compared with Massachusetts prescribers
Dr. Oats wrote 56 prescriptions for Bromfenac Sodium, about 80% as often as the typical Massachusetts prescriber of it (70). Medicare paid $265.29 per fill, versus $201.09 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat open-angle glaucoma or high fluid pressure in the eye.
Compared with Massachusetts prescribers
Dr. Oats wrote 55 prescriptions for Alphagan P, about 1.8 times as often as the typical Massachusetts prescriber of it (31). Medicare paid $456.42 per fill, versus $449.83 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain eye infections (such as conjunctivitis).
Compared with Massachusetts prescribers
Dr. Oats wrote 50 prescriptions for Erythromycin, about 1.4 times as often as the typical Massachusetts prescriber of it (36). Medicare paid $10.73 per fill, versus $14.76 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat or prevent eye infections.
Compared with Massachusetts prescribers
Dr. Oats wrote 40 prescriptions for Tobramycin-Dexamethasone, about 1.3 times as often as the typical Massachusetts prescriber of it (32). Medicare paid $45.35 per fill, versus $49.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tafluprost is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 39 prescriptions for Tafluprost, about 1.2 times as often as the typical Massachusetts prescriber of it (32). Medicare paid $141.20 per fill, versus $187.42 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Cyclosporine eye drops are used to treat a certain type of dry eyes.
Compared with Massachusetts prescribers
Dr. Oats wrote 36 prescriptions for Cyclosporine, about as often as the typical Massachusetts prescriber of it (31). Medicare paid $470.78 per fill, versus $398.97 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat eye infections.
Compared with Massachusetts prescribers
Dr. Oats wrote 36 prescriptions for Ofloxacin, about half as often as the typical Massachusetts prescriber of it (73). Medicare paid $9.57 per fill, versus $15.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Valacyclovir is used to treat infections caused by certain types of viruses.
Compared with Massachusetts prescribers
Dr. Oats wrote 29 prescriptions for Valacyclovir, about 1.3 times as often as the typical Massachusetts prescriber of it (22). Medicare paid $23.22 per fill, versus $29.55 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Acyclovir is used to treat infections caused by certain types of viruses.
Compared with Massachusetts prescribers
Dr. Oats wrote 26 prescriptions for Acyclovir, about as often as the typical Massachusetts prescriber of it (28). Medicare paid $17.00 per fill, versus $17.16 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a wide variety of bacterial infections, including those that cause acne.
Compared with Massachusetts prescribers
Dr. Oats wrote 25 prescriptions for Doxycycline Hyclate, about 87% as often as the typical Massachusetts prescriber of it (29). Medicare paid $21.47 per fill, versus $11.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat conditions involving swelling (inflammation) of the eyes and to treat or prevent bacterial eye infections.
Compared with Massachusetts prescribers
Dr. Oats wrote 25 prescriptions for Neomycin-Polymyxin-Dexameth, about half as often as the typical Massachusetts prescriber of it (43). Medicare paid $10.56 per fill, versus $11.84 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Travoprost is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 23 prescriptions for Travatan Z, about 1.3 times as often as the typical Massachusetts prescriber of it (18). Medicare paid $704.40 per fill, versus $595.70 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Brinzolamide is used to treat high pressure inside the eye due to glaucoma (open angle-type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 22 prescriptions for Brinzolamide, about half as often as the typical Massachusetts prescriber of it (40). Medicare paid $131.05 per fill, versus $208.61 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with Massachusetts prescribers
Dr. Oats wrote 19 prescriptions for Levobunolol Hcl, about 86% as often as the typical Massachusetts prescriber of it (22). Medicare paid $20.73 per fill, versus $31.43 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat minor skin infections (such as impetigo, folliculitis) or minor infections related to some skin conditions (such as eczema, psoriasis, minor burns/cuts/wounds).
Compared with Massachusetts prescribers
Dr. Oats wrote 18 prescriptions for Gentamicin Sulfate, about 69% as often as the typical Massachusetts prescriber of it (26). Medicare paid $8.51 per fill, versus $35.46 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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).
Compared with Massachusetts prescribers
Dr. Oats wrote 15 prescriptions for Timolol Maleate, about 70% as often as the typical Massachusetts prescriber of it (21). Medicare paid $162.99 per fill, versus $344.25 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat or prevent eye infections.
Compared with Massachusetts prescribers
Dr. Oats wrote 15 prescriptions for Tobradex, about as often as the typical Massachusetts prescriber of it (16). Medicare paid $264.29 per fill, versus $272.92 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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).
Compared with Massachusetts prescribers
Dr. Oats wrote 14 prescriptions for Dorzolamide-Timolol, about half as often as the typical Massachusetts prescriber of it (33). Medicare paid $130.29 per fill, versus $168.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a quinolone antibiotic used for eye infections.
Compared with Massachusetts prescribers
Dr. Oats wrote 13 prescriptions for Moxifloxacin, about 15% as often as the typical Massachusetts prescriber of it (88). Medicare paid $19.30 per fill, versus $22.57 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders.
Compared with Massachusetts prescribers
Dr. Oats wrote 12 prescriptions for Prednisone, about 27% as often as the typical Massachusetts prescriber of it (44). Medicare paid $4.56 per fill, versus $4.60 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat dry eye disease.
Compared with Massachusetts prescribers
Dr. Oats wrote 12 prescriptions for Xiidra, about half as often as the typical Massachusetts prescriber of it (28). Medicare paid $938.61 per fill, versus $1,106.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat eye infections.
Compared with Massachusetts prescribers
Dr. Oats wrote 11 prescriptions for Bacitracin-Polymyxin, about 39% as often as the typical Massachusetts prescriber of it (28). Medicare paid $7.87 per fill, versus $14.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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).
Compared with Massachusetts prescribers
Fewer than five Massachusetts prescribers wrote this medication, so there is no state comparison.
Questions about Dr. Oats’s prescriptions
What does Dr. Oats prescribe most?
In 2024 Medicare Part D data, Dr. Oats's most prescribed medications were Latanoprost (1,392), Prednisolone Acetate (780) and Lumigan (662).
How does Dr. Oats's prescribing compare with other Massachusetts prescribers?
Of the 42 medications with a state comparison, Dr. Oats prescribes 24 more often than the typical Massachusetts prescriber, 8 about as often and 10 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Oats prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the Massachusetts prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
