RACHEL A FEINBERG MD
Prescription History 1083616635
Anesthesiology in Saint Louis, MO
What does Dr. Feinberg prescribe?
In 2024, Dr. Feinberg wrote 674 Medicare prescriptions for 11 medications. The most prescribed was Hydrocodone-Acetaminophen (hydrocodone/acetaminophen), with 171 prescriptions for 80 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. Feinberg 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 Missouri prescribers.
What it is used for
This combination medication is used to relieve moderate to severe pain.
Compared with Missouri prescribers
Dr. Feinberg wrote 171 prescriptions for Hydrocodone-Acetaminophen, about 1.6 times as often as the typical Missouri prescriber of it (109). Medicare paid $38.38 per fill, versus $20.32 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
This combination medication is used to help relieve moderate to severe pain.
Compared with Missouri prescribers
Dr. Feinberg wrote 163 prescriptions for Oxycodone-Acetaminophen, about 2 times as often as the typical Missouri prescriber of it (81). Medicare paid $41.85 per fill, versus $25.49 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
This medication is used to help relieve moderate to severe pain.
Compared with Missouri prescribers
Dr. Feinberg wrote 125 prescriptions for Oxycodone Hcl, about 2.1 times as often as the typical Missouri prescriber of it (58). Medicare paid $32.53 per fill, versus $15.05 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
See also Warning section.
Compared with Missouri prescribers
Dr. Feinberg wrote 50 prescriptions for Tramadol Hcl, about half as often as the typical Missouri prescriber of it (93). Medicare paid $5.93 per fill, versus $7.94 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 pain caused by nerve damage due to diabetes, shingles (herpes zoster) infection, or spinal cord injury.
Compared with Missouri prescribers
Dr. Feinberg wrote 33 prescriptions for Pregabalin, about half as often as the typical Missouri prescriber of it (61). Medicare paid $18.81 per fill, versus $27.79 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
Cyclobenzaprine is used short-term to treat muscle spasms.
Compared with Missouri prescribers
Dr. Feinberg wrote 32 prescriptions for Cyclobenzaprine Hcl, about 71% as often as the typical Missouri prescriber of it (45). Medicare paid $13.55 per fill, versus $9.75 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 muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury).
Compared with Missouri prescribers
Dr. Feinberg wrote 24 prescriptions for Tizanidine Hcl, about half as often as the typical Missouri prescriber of it (57). Medicare paid $11.36 per fill, versus $11.54 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
Buprenorphine is used to help relieve severe ongoing pain.
Compared with Missouri prescribers
Dr. Feinberg wrote 23 prescriptions for Belbuca, about 60% as often as the typical Missouri prescriber of it (38). Medicare paid $932.28 per fill, versus $733.51 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 help relieve severe ongoing pain (such as due to cancer).
Compared with Missouri prescribers
Dr. Feinberg wrote 20 prescriptions for Morphine Sulfate Er, about half as often as the typical Missouri prescriber of it (43). Medicare paid $43.51 per fill, versus $32.17 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 Missouri prescribers
Dr. Feinberg wrote 17 prescriptions for Gabapentin, about 15% as often as the typical Missouri prescriber of it (115). Medicare paid $19.56 per fill, versus $15.91 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 severe ongoing pain (such as due to cancer).
Compared with Missouri prescribers
Dr. Feinberg wrote 16 prescriptions for Methadone Hcl, about half as often as the typical Missouri prescriber of it (36). Medicare paid $29.66 per fill, versus $21.72 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. Feinberg’s prescriptions
What does Dr. Feinberg prescribe most?
In 2024 Medicare Part D data, Dr. Feinberg's most prescribed medications were Hydrocodone-Acetaminophen (171), Oxycodone-Acetaminophen (163) and Oxycodone Hcl (125).
How does Dr. Feinberg's prescribing compare with other Missouri prescribers?
Of the 11 medications with a state comparison, Dr. Feinberg prescribes 3 more often than the typical Missouri prescriber and 8 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Feinberg 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 Missouri 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.
