JULIAN KRAVTIN HORWITZ MD
Prescription History 1770901449
Transplant Surgery in Seattle, WA
What does Dr. Horwitz prescribe?
In 2024, Dr. Horwitz wrote 261 Medicare prescriptions for 11 medications. The most prescribed was Sulfamethoxazole-Trimethoprim (sulfamethoxazole/trimethoprim), with 45 prescriptions for 17 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. Horwitz prescribes.
Medications 11 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 Washington prescribers.
What it is used for
This medication is a combination of two antibiotics: sulfamethoxazole and trimethoprim.
Compared with Washington prescribers
Dr. Horwitz wrote 45 prescriptions for Sulfamethoxazole-Trimethoprim, about 2 times as often as the typical Washington prescriber of it (22). Medicare paid $6.12 per fill, versus $6.49 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
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Washington prescribers
Dr. Horwitz wrote 38 prescriptions for Pantoprazole Sodium, about 78% as often as the typical Washington prescriber of it (49). Medicare paid $4.69 per fill, versus $14.19 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
Valganciclovir is an anti-viral drug.
Compared with Washington prescribers
Dr. Horwitz wrote 30 prescriptions for Valganciclovir Hcl, about as often as the typical Washington prescriber of it (28). Medicare paid $255.05 per fill, versus $161.87 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
Ursodiol is used to dissolve certain types of gallstones, to prevent gallstones from forming in obese patients who are losing weight rapidly, and to treat a certain type of liver disease (primary biliary cholangitis).
Compared with Washington prescribers
Dr. Horwitz wrote 22 prescriptions for Ursodiol, about as often as the typical Washington prescriber of it (24). Medicare paid $55.38 per fill, versus $143.95 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Washington prescribers
Dr. Horwitz wrote 21 prescriptions for Amlodipine Besylate, about 20% as often as the typical Washington prescriber of it (106). Medicare paid $3.62 per fill, versus $7.92 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
Calcitriol is a man-made active form of vitamin D.
Compared with Washington prescribers
Dr. Horwitz wrote 21 prescriptions for Calcitriol, about half as often as the typical Washington prescriber of it (44). Medicare paid $18.23 per fill, versus $21.10 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 form of tacrolimus is used on the skin to treat a skin condition called eczema (atopic dermatitis) in patients who have not responded well to (or should not use) other eczema medications.
Compared with Washington prescribers
Dr. Horwitz wrote 19 prescriptions for Tacrolimus, about 60% as often as the typical Washington prescriber of it (32). Medicare paid $294.63 per fill, versus $108.65 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with Washington prescribers
Dr. Horwitz wrote 18 prescriptions for Gabapentin, about 25% as often as the typical Washington prescriber of it (72). Medicare paid $8.79 per fill, versus $19.65 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
Mycophenolate is used in combination with other medications to keep your body from attacking and rejecting your transplanted kidney.
Compared with Washington prescribers
Dr. Horwitz wrote 18 prescriptions for Mycophenolic Acid, about as often as the typical Washington prescriber of it (19). Medicare paid $90.12 per fill, versus $175.11 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 Washington prescribers
Dr. Horwitz wrote 17 prescriptions for Prednisone, about half as often as the typical Washington prescriber of it (38). Medicare paid $6.50 per fill, versus $5.30 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
Methocarbamol is used to treat muscle spasms/pain.
Compared with Washington prescribers
Dr. Horwitz wrote 12 prescriptions for Methocarbamol, about half as often as the typical Washington prescriber of it (27). Medicare paid $13.46 per fill, versus $14.08 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Horwitz’s prescriptions
What does Dr. Horwitz prescribe most?
In 2024 Medicare Part D data, Dr. Horwitz's most prescribed medications were Sulfamethoxazole-Trimethoprim (45), Pantoprazole Sodium (38) and Valganciclovir Hcl (30).
How does Dr. Horwitz's prescribing compare with other Washington prescribers?
Of the 11 medications with a state comparison, Dr. Horwitz prescribes 1 more often than the typical Washington prescriber, 4 about as often and 6 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Horwitz 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 Washington 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.
