DR. ZRRIA L RICHARDSON M.D.
Prescription History 1174886113
Otolaryngology in Fontana, CA
What does Dr. Richardson prescribe?
In 2024, Dr. Richardson wrote 280 Medicare prescriptions for 9 medications. The most prescribed was Pantoprazole Sodium, with 135 prescriptions for 33 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. Richardson prescribes.
Medications 9 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 California prescribers.
What it is used for
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with California prescribers
Dr. Richardson wrote 135 prescriptions for Pantoprazole Sodium, about 2.1 times as often as the typical California prescriber of it (65). Medicare paid $8.60 per fill, versus $13.87 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
Ibuprofen is used to relieve pain from various conditions such as headache, dental pain, menstrual cramps, muscle aches, or arthritis.
Compared with California prescribers
Dr. Richardson wrote 34 prescriptions for Ibuprofen, about 81% as often as the typical California prescriber of it (42). Medicare paid $9.71 per fill, versus $6.71 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 relieve moderate to severe pain.
Compared with California prescribers
Dr. Richardson wrote 27 prescriptions for Hydrocodone-Acetaminophen, about 35% as often as the typical California prescriber of it (76). Medicare paid $32.37 per fill, versus $21.39 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 California prescribers
Dr. Richardson wrote 21 prescriptions for Omeprazole, about 27% as often as the typical California prescriber of it (78). Medicare paid $10.87 per fill, versus $11.26 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 California prescribers
Dr. Richardson wrote 15 prescriptions for Prednisone, about 37% as often as the typical California prescriber of it (40). Medicare paid $11.41 per fill, versus $5.64 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 a variety of bacterial infections.
Compared with California prescribers
Dr. Richardson wrote 13 prescriptions for Ciprofloxacin Hcl, about half as often as the typical California prescriber of it (30). Medicare paid $20.34 per fill, versus $6.32 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
Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections.
Compared with California prescribers
Dr. Richardson wrote 12 prescriptions for Amoxicillin-Clavulanate Potass, about half as often as the typical California prescriber of it (26). Medicare paid $16.82 per fill, versus $9.18 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 California prescribers
Dr. Richardson wrote 12 prescriptions for Dexamethasone Sodium Phosphate, about 30% as often as the typical California prescriber of it (41). Medicare paid $59.91 per fill, versus $25.07 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 bacterial ear infections.
Compared with California prescribers
Dr. Richardson wrote 11 prescriptions for Ciprofloxacin-Dexamethasone, about half as often as the typical California prescriber of it (25). Medicare paid $143.63 per fill, versus $110.25 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. Richardson’s prescriptions
What does Dr. Richardson prescribe most?
In 2024 Medicare Part D data, Dr. Richardson's most prescribed medications were Pantoprazole Sodium (135), Ibuprofen (34) and Hydrocodone-Acetaminophen (27).
How does Dr. Richardson's prescribing compare with other California prescribers?
Of the 9 medications with a state comparison, Dr. Richardson prescribes 1 more often than the typical California prescriber, 1 about as often and 7 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Richardson 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 California 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.
