DR. TOBIN JOHNSON CHEMPLAVIL DO
Prescription History 1356086607
Family Medicine in Loves Park, IL
What does Dr. Chemplavil prescribe?
In 2024, Dr. Chemplavil wrote 328 Medicare prescriptions for 16 medications. The most prescribed was Atorvastatin Calcium, with 62 prescriptions for 25 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. Chemplavil prescribes.
Medications 16 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 Illinois prescribers.
What it is used for
Atorvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Illinois prescribers
Dr. Chemplavil wrote 62 prescriptions for Atorvastatin Calcium, about 30% as often as the typical Illinois prescriber of it (208). Medicare paid $8.51 per fill, versus $9.37 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
Lisinopril is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Chemplavil wrote 35 prescriptions for Lisinopril, about 29% as often as the typical Illinois prescriber of it (120). Medicare paid $6.86 per fill, versus $7.00 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Illinois prescribers
Dr. Chemplavil wrote 28 prescriptions for Amlodipine Besylate, about 19% as often as the typical Illinois prescriber of it (146). Medicare paid $2.82 per fill, versus $6.68 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 Illinois prescribers
Dr. Chemplavil wrote 23 prescriptions for Gabapentin, about 26% as often as the typical Illinois prescriber of it (87). Medicare paid $19.40 per fill, versus $15.83 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 mental/mood disorders (such as depression, anxiety).
Compared with Illinois prescribers
Dr. Chemplavil wrote 20 prescriptions for Duloxetine Hcl, about 38% as often as the typical Illinois prescriber of it (53). Medicare paid $17.20 per fill, versus $21.99 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Illinois prescribers
Dr. Chemplavil wrote 20 prescriptions for Levothyroxine Sodium, about 13% as often as the typical Illinois prescriber of it (156). Medicare paid $8.06 per fill, versus $10.46 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
See also Warning section.
Compared with Illinois prescribers
Dr. Chemplavil wrote 19 prescriptions for Naproxen, about 74% as often as the typical Illinois prescriber of it (26). Medicare paid $12.27 per fill, versus $10.65 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Illinois prescribers
Dr. Chemplavil wrote 19 prescriptions for Omeprazole, about 20% as often as the typical Illinois prescriber of it (96). Medicare paid $15.73 per fill, versus $11.25 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
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with Illinois prescribers
Dr. Chemplavil wrote 19 prescriptions for Tamsulosin Hcl, about 20% as often as the typical Illinois prescriber of it (94). Medicare paid $10.45 per fill, versus $14.59 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Illinois prescribers
Dr. Chemplavil wrote 15 prescriptions for Metformin Hcl, about 15% as often as the typical Illinois prescriber of it (102). Medicare paid $4.51 per fill, versus $7.31 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
Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with Illinois prescribers
Dr. Chemplavil wrote 12 prescriptions for Furosemide, about 13% as often as the typical Illinois prescriber of it (90). Medicare paid $3.98 per fill, versus $5.20 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 Illinois prescribers
Dr. Chemplavil wrote 12 prescriptions for Prednisone, about 26% as often as the typical Illinois prescriber of it (46). Medicare paid $1.34 per fill, versus $3.88 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
Fluticasone is used to relieve seasonal and year-round allergic and non-allergic nasal symptoms, such as stuffy/runny nose, itching, and sneezing.
Compared with Illinois prescribers
Dr. Chemplavil wrote 11 prescriptions for Fluticasone Propionate, about 22% as often as the typical Illinois prescriber of it (49). Medicare paid $2.36 per fill, versus $14.22 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
Hydralazine is used with or without other medications to treat high blood pressure.
Compared with Illinois prescribers
Dr. Chemplavil wrote 11 prescriptions for Hydralazine Hcl, about 25% as often as the typical Illinois prescriber of it (43). Medicare paid $17.50 per fill, versus $14.12 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
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Illinois prescribers
Dr. Chemplavil wrote 11 prescriptions for Losartan Potassium, about 10% as often as the typical Illinois prescriber of it (115). Medicare paid $3.08 per fill, versus $9.41 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
Rosuvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Illinois prescribers
Dr. Chemplavil wrote 11 prescriptions for Rosuvastatin Calcium, about 10% as often as the typical Illinois prescriber of it (105). Medicare paid $12.43 per fill, versus $13.25 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. Chemplavil’s prescriptions
What does Dr. Chemplavil prescribe most?
In 2024 Medicare Part D data, Dr. Chemplavil's most prescribed medications were Atorvastatin Calcium (62), Lisinopril (35) and Amlodipine Besylate (28).
How does Dr. Chemplavil's prescribing compare with other Illinois prescribers?
Of the 16 medications with a state comparison, Dr. Chemplavil prescribes 16 less often than the typical Illinois prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Chemplavil 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 Illinois 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.
