DR. JOHN CHRISTOPHER SELBY M.D., PH.D.
Prescription History 1356662621
Dermatology in Iowa City, IA
Medicare Part D Prescription History
Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DR. JOHN CHRISTOPHER SELBY M.D., PH.D., an active Dermatology specialist practicing in Iowa City, IA. Our medical registry currently tracks 8 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 123 documented patient claims. Among these therapy options, the most frequently utilized medication is Ketoconazole, which accounts for 23 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 (2024)Rx (2024) | Avg Cost per FillCost / Fill | Vs. Other IA PrescribersVs. IA Avg |
|---|---|---|---|
| Ketoconazole | 23 | $10.62▼ below IA avg | ▼ Less than typical |
About Ketoconazole: Ketoconazole is used to treat skin infections such as athlete's foot, jock itch, ringworm, and certain kinds of dandruff. Show more ▾ This medication is also used to treat a skin condition known as pityriasis (tinea versicolor), a fungal infection that causes a lightening or darkening of the skin of the neck, chest, arms, or legs. Ketoconazole is an azole antifungal that works by preventing the growth of fungus. Broad spectrum antifungal agent used for long periods at high doses, especially in immunosuppressed patients. In 2024, this provider wrote 23 Medicare prescriptions for Ketoconazole, about half the volume of the typical Iowa prescriber of this medication (41). Medicare paid an average of $10.62 per fill, versus $17.35 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average IA 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 IA average for this medication. 25.3 30-Day Fills standardized to 30-day supplies 715 Days of Medication total across all patients in 2024 | |||
| Clobetasol Propionate | 21 | $62.20 | ▼ Less than typical |
About Clobetasol Propionate: This medication is used to treat a variety of skin conditions (such as eczema, psoriasis, dermatitis, allergies, rash). Show more ▾ Clobetasol reduces the swelling, itching, and redness that can occur in these types of conditions. This medication is a very strong (super-high-potency) corticosteroid. A derivative of PREDNISOLONE with high glucocorticoid activity and low mineralocorticoid activity. Absorbed through the skin faster than FLUOCINONIDE, it is used topically in treatment of PSORIASIS but may cause marked adrenocortical suppression. In 2024, this provider wrote 21 Medicare prescriptions for Clobetasol Propionate, about half the volume of the typical Iowa prescriber of this medication (37.7). Medicare paid an average of $62.20 per fill, versus $50.73 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average IA 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. 22.7 30-Day Fills standardized to 30-day supplies 645 Days of Medication total across all patients in 2024 | |||
| Doxycycline Hyclate | 18 | $23.30 | ▼ Less than typical |
About Doxycycline Hyclate: This medication is used to treat a wide variety of bacterial infections, including those that cause acne. Show more ▾ This medication is also used to prevent malaria. This medication is known as a tetracycline 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 synthetic tetracycline derivative with similar antimicrobial activity. In 2024, this provider wrote 18 Medicare prescriptions for Doxycycline Hyclate, about 68% of the volume of the typical Iowa prescriber of this medication (26.4). Medicare paid an average of $23.30 per fill, versus $14.47 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average IA 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 30-Day Fills standardized to 30-day supplies 540 Days of Medication total across all patients in 2024 | |||
| Fluorouracil | 15 | $107.43 | ▼ Less than typical |
About Fluorouracil: This medication is used on the skin to treat pre-cancerous and cancerous skin growths. Show more ▾ Fluorouracil belongs to a class of medications known as anti-metabolites. It works by blocking the growth of abnormal cells that cause the skin condition. A pyrimidine analog that is an antineoplastic antimetabolite. It interferes with DNA synthesis by blocking the THYMIDYLATE SYNTHETASE conversion of deoxyuridylic acid to thymidylic acid. In 2024, this provider wrote 15 Medicare prescriptions for Fluorouracil, about half the volume of the typical Iowa prescriber of this medication (29.1). Medicare paid an average of $107.43 per fill, versus $80.70 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average IA 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. 15 30-Day Fills standardized to 30-day supplies 420 Days of Medication total across all patients in 2024 | |||
| Metronidazole | 12 | $47.23 | ▼ Less than typical |
About Metronidazole: Metronidazole is an antibiotic that is used to treat a wide variety of infections. Show more ▾ It works by stopping the growth of certain bacteria and parasites. This antibiotic treats only certain bacterial and parasitic 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. Metronidazole may also be used with other medications to treat certain stomach/intestinal ulcers caused by a bacteria (H. pylori). A nitroimidazole used to treat AMEBIASIS; VAGINITIS; TRICHOMONAS INFECTIONS; GIARDIASIS; ANAEROBIC BACTERIA; and TREPONEMAL INFECTIONS. In 2024, this provider wrote 12 Medicare prescriptions for Metronidazole, about half the volume of the typical Iowa prescriber of this medication (22.9). Medicare paid an average of $47.23 per fill, versus $37.62 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average IA 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. 12 30-Day Fills standardized to 30-day supplies 306 Days of Medication total across all patients in 2024 | |||
| Spironolactone | 12 | $10.24 | ▼ Less than typical |
About Spironolactone: Spironolactone is used to treat high blood pressure and heart failure. Show more ▾ Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. It is also used to treat swelling (edema) caused by certain conditions (such as heart failure, liver disease) by removing excess fluid and improving symptoms such as breathing problems. This medication is also used to treat conditions in which the body is making too much of a natural substance (aldosterone). Spironolactone is known as a "water pill" (potassium-sparing diuretic). A potassium sparing diuretic that acts by antagonism of aldosterone in the distal renal tubules. It is used mainly in the treatment of refractory edema in patients with congestive heart failure, nephrotic syndrome, or hepatic cirrhosis. Its effects on the endocrine system are utilized in the treatments of hirsutism and acne but they can lead to adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p827) In 2024, this provider wrote 12 Medicare prescriptions for Spironolactone, about a quarter of the volume of the typical Iowa prescriber of this medication (56). Medicare paid an average of $10.24 per fill, versus $6.53 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average IA 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. 12 30-Day Fills standardized to 30-day supplies 360 Days of Medication total across all patients in 2024 | |||
| Glycopyrrolate | 11 | $40.97▼ below IA avg | ▼ Less than typical |
About Glycopyrrolate: Glycopyrrolate is used with other drugs to treat a certain type of stomach/intestinal ulcer (peptic ulcer). Show more ▾ This medication may help relieve stomach/abdominal pain. However, it has not been shown to be effective in healing these ulcers, preventing them from returning, or preventing other problems caused by ulcers. Glycopyrrolate works by decreasing the amount of acid in the stomach. It also slows the natural movements of the gut and relaxes the muscles in the stomach/intestines. Glycopyrrolate belongs to a class of drugs known as anticholinergics. A muscarinic antagonist used as an antispasmodic, in some disorders of the gastrointestinal tract, and to reduce salivation with some anesthetics. In 2024, this provider wrote 11 Medicare prescriptions for Glycopyrrolate, about half the volume of the typical Iowa prescriber of this medication (19). Medicare paid an average of $40.97 per fill, versus $43.42 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average IA 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 IA average for this medication. 11 30-Day Fills standardized to 30-day supplies 330 Days of Medication total across all patients in 2024 | |||
| Minoxidil | 11 | $14.42 | ▼ Less than typical |
About Minoxidil: Minoxidil is used with other medications to treat high blood pressure (hypertension). Show more ▾ Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Minoxidil works by relaxing blood vessels so blood can flow more easily. A potent direct-acting peripheral vasodilator (VASODILATOR AGENTS) that reduces peripheral resistance and produces a fall in BLOOD PRESSURE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p371) In 2024, this provider wrote 11 Medicare prescriptions for Minoxidil, about a third of the volume of the typical Iowa prescriber of this medication (26.3). Medicare paid an average of $14.42 per fill, versus $12.45 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average IA 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. 19 30-Day Fills standardized to 30-day supplies 570 Days of Medication total across all patients in 2024 | |||
About this data. The prescription history for DR. JOHN CHRISTOPHER SELBY M.D., PH.D. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, 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 Dermatology prescribing approach at this Iowa City, IA 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 among IA prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.
About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.
