MICHAEL XIAOZHONG LIU MD
Prescription History 1851402721
Psychiatry & Neurology - Neurology in Alton, IL
What does Dr. Liu prescribe?
In 2024, Dr. Liu wrote 2,125 Medicare prescriptions for 40 medications. The most prescribed was Memantine Hcl, with 338 prescriptions for 78 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. Liu prescribes.
Medications 40 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
Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease.
Compared with Illinois prescribers
Dr. Liu wrote 338 prescriptions for Memantine Hcl, about 5.1 times as often as the typical Illinois prescriber of it (66). Medicare paid $37.90 per fill, versus $30.45 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
Donepezil is used to treat confusion (dementia) related to Alzheimer's disease.
Compared with Illinois prescribers
Dr. Liu wrote 256 prescriptions for Donepezil Hcl, about 3.8 times as often as the typical Illinois prescriber of it (67). Medicare paid $7.02 per fill, versus $11.52 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
Topiramate is used alone or with other medications to prevent and control seizures (epilepsy).
Compared with Illinois prescribers
Dr. Liu wrote 212 prescriptions for Topiramate, about 5.9 times as often as the typical Illinois prescriber of it (36). Medicare paid $10.55 per fill, versus $12.59 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
Levetiracetam is used to treat seizures (epilepsy).
Compared with Illinois prescribers
Dr. Liu wrote 151 prescriptions for Levetiracetam, about 2.6 times as often as the typical Illinois prescriber of it (58). Medicare paid $26.62 per fill, versus $30.94 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with Illinois prescribers
Dr. Liu wrote 127 prescriptions for Gabapentin, about 1.5 times as often as the typical Illinois prescriber of it (87). Medicare paid $12.77 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 depression.
Compared with Illinois prescribers
Dr. Liu wrote 92 prescriptions for Amitriptyline Hcl, about 3.4 times as often as the typical Illinois prescriber of it (27). Medicare paid $12.92 per fill, versus $14.92 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
This combination medication is used to treat symptoms of Parkinson's disease or Parkinson-like symptoms (such as shakiness, stiffness, difficulty moving).
Compared with Illinois prescribers
Dr. Liu wrote 89 prescriptions for Carbidopa-Levodopa, about 1.2 times as often as the typical Illinois prescriber of it (73). Medicare paid $25.54 per fill, versus $28.87 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
This medication is used alone or with other medications to control seizures.
Compared with Illinois prescribers
Dr. Liu wrote 73 prescriptions for Primidone, about 2.3 times as often as the typical Illinois prescriber of it (32). Medicare paid $32.46 per fill, versus $21.96 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
Carbamazepine is used to prevent and control seizures.
Compared with Illinois prescribers
Dr. Liu wrote 66 prescriptions for Carbamazepine, about 2.3 times as often as the typical Illinois prescriber of it (28). Medicare paid $59.44 per fill, versus $50.54 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
Lamotrigine is used alone or with other medications to prevent and control seizures.
Compared with Illinois prescribers
Dr. Liu wrote 64 prescriptions for Lamotrigine, about 1.3 times as often as the typical Illinois prescriber of it (50). Medicare paid $19.64 per fill, versus $12.11 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
Lacosamide is used to prevent and control seizures.
Compared with Illinois prescribers
Dr. Liu wrote 54 prescriptions for Lacosamide, about 1.3 times as often as the typical Illinois prescriber of it (41). Medicare paid $141.76 per fill, versus $136.53 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
Rizatriptan is used to treat migraines.
Compared with Illinois prescribers
Dr. Liu wrote 46 prescriptions for Rizatriptan, about 2.2 times as often as the typical Illinois prescriber of it (21). Medicare paid $27.60 per fill, versus $17.87 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
Sumatriptan is used to treat migraines.
Compared with Illinois prescribers
Dr. Liu wrote 40 prescriptions for Sumatriptan Succinate, about 1.8 times as often as the typical Illinois prescriber of it (22). Medicare paid $8.84 per fill, versus $16.86 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 alone or with other medications to treat Parkinson's disease.
Compared with Illinois prescribers
Dr. Liu wrote 39 prescriptions for Ropinirole Hcl, about 1.2 times as often as the typical Illinois prescriber of it (33). Medicare paid $15.37 per fill, versus $14.84 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 Illinois prescribers
Dr. Liu wrote 33 prescriptions for Pregabalin, about 81% as often as the typical Illinois prescriber of it (41). Medicare paid $21.01 per fill, versus $32.81 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
Baclofen is used to treat muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury/disease).
Compared with Illinois prescribers
Dr. Liu wrote 32 prescriptions for Baclofen, about 83% as often as the typical Illinois prescriber of it (39). Medicare paid $19.47 per fill, versus $18.38 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
Phenytoin is used to prevent and control seizures (also called an anticonvulsant or antiepileptic drug).
Compared with Illinois prescribers
Dr. Liu wrote 27 prescriptions for Phenytoin Sodium Extended, about as often as the typical Illinois prescriber of it (25). Medicare paid $33.33 per fill, versus $31.07 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
Carbamazepine is used to prevent and control seizures.
Compared with Illinois prescribers
Dr. Liu wrote 26 prescriptions for Carbamazepine Er, about as often as the typical Illinois prescriber of it (25). Medicare paid $73.63 per fill, versus $114.11 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
This medication is used to treat multiple sclerosis (MS).
Compared with Illinois prescribers
Dr. Liu wrote 25 prescriptions for Kesimpta Pen, about 69% as often as the typical Illinois prescriber of it (36). Medicare paid $9,381.81 per fill, versus $9,372.18 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 a beta blocker used to treat high blood pressure, irregular heartbeats, shaking (tremors), and other conditions.
Compared with Illinois prescribers
Dr. Liu wrote 24 prescriptions for Propranolol Hcl, about as often as the typical Illinois prescriber of it (25). Medicare paid $33.26 per fill, versus $17.54 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
This medication is used to prevent migraines.
Compared with Illinois prescribers
Dr. Liu wrote 22 prescriptions for Qulipta, about 84% as often as the typical Illinois prescriber of it (26). Medicare paid $1,102.57 per fill, versus $1,267.71 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 medication is used to treat migraine.
Compared with Illinois prescribers
Dr. Liu wrote 22 prescriptions for Ubrelvy, about 81% as often as the typical Illinois prescriber of it (27). Medicare paid $1,461.98 per fill, versus $1,345.13 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
Zonisamide is used with other medications to prevent and control seizures (epilepsy).
Compared with Illinois prescribers
Dr. Liu wrote 22 prescriptions for Zonisamide, about 76% as often as the typical Illinois prescriber of it (29). Medicare paid $24.00 per fill, versus $32.72 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 seizure disorders, certain psychiatric conditions (manic phase of bipolar disorder), and to prevent migraine headaches.
Compared with Illinois prescribers
Dr. Liu wrote 21 prescriptions for Divalproex Sodium, about 38% as often as the typical Illinois prescriber of it (56). Medicare paid $107.78 per fill, versus $40.29 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 alone or with other medications to control seizures.
Compared with Illinois prescribers
Dr. Liu wrote 20 prescriptions for Phenobarbital, about 77% as often as the typical Illinois prescriber of it (26). Medicare paid $28.70 per fill, versus $30.22 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
Dimethyl fumarate is used to treat multiple sclerosis (MS).
Compared with Illinois prescribers
Dr. Liu wrote 17 prescriptions for Dimethyl Fumarate, about 90% as often as the typical Illinois prescriber of it (19). Medicare paid $173.75 per fill, versus $1,048.18 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 by adults to treat multiple sclerosis-MS.
Compared with Illinois prescribers
Dr. Liu wrote 17 prescriptions for Teriflunomide, about half as often as the typical Illinois prescriber of it (30). Medicare paid $4,515.21 per fill, versus $2,031.03 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 prevent migraine.
Compared with Illinois prescribers
Dr. Liu wrote 16 prescriptions for Emgality Syringe, about as often as the typical Illinois prescriber of it (16). Medicare paid $781.99 per fill, versus $1,081.47 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
Levetiracetam is used to treat seizures (epilepsy).
Compared with Illinois prescribers
Dr. Liu wrote 16 prescriptions for Levetiracetam Er, about 69% as often as the typical Illinois prescriber of it (23). Medicare paid $12.62 per fill, versus $77.89 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
Pyridostigmine is used to improve muscle strength in patients with a certain muscle disease (myasthenia gravis).
Compared with Illinois prescribers
Dr. Liu wrote 16 prescriptions for Pyridostigmine Bromide, about 62% as often as the typical Illinois prescriber of it (26). Medicare paid $85.96 per fill, versus $85.53 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 treat attention deficit hyperactivity disorder - ADHD.
Compared with Illinois prescribers
Dr. Liu wrote 14 prescriptions for Dextroamphetamine-Amphetamine, about half as often as the typical Illinois prescriber of it (30). Medicare paid $15.22 per fill, versus $27.84 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
Oxcarbazepine is used alone or with other medications to treat seizure disorders (epilepsy).
Compared with Illinois prescribers
Dr. Liu wrote 13 prescriptions for Oxcarbazepine, about 37% as often as the typical Illinois prescriber of it (35). Medicare paid $73.31 per fill, versus $53.96 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 multiple sclerosis (MS).
Compared with Illinois prescribers
Dr. Liu wrote 13 prescriptions for Rebif Rebidose, about as often as the typical Illinois prescriber of it (13). Medicare paid $10,347.52 per fill, versus $10,856.05 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
This medication is used to help prevent migraine.
Compared with Illinois prescribers
Dr. Liu wrote 12 prescriptions for Aimovig Autoinjector, about 38% as often as the typical Illinois prescriber of it (31). Medicare paid $980.39 per fill, versus $839.25 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
Amantadine is used to treat Parkinson's disease, as well as side effects caused by drugs (such as drug-induced extrapyramidal symptoms), chemicals, and other medical conditions.
Compared with Illinois prescribers
Dr. Liu wrote 12 prescriptions for Amantadine, about 35% as often as the typical Illinois prescriber of it (35). Medicare paid $66.91 per fill, versus $39.78 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 depression.
Compared with Illinois prescribers
Dr. Liu wrote 12 prescriptions for Citalopram Hbr, about 29% as often as the typical Illinois prescriber of it (41). Medicare paid $0.79 per fill, versus $6.81 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
Perampanel is used to treat certain types of seizures (including focal and generalized tonic-clonic seizures).
Compared with Illinois prescribers
Dr. Liu wrote 12 prescriptions for Fycompa, about half as often as the typical Illinois prescriber of it (24). Medicare paid $497.82 per fill, versus $1,349.10 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
Meloxicam is used to treat arthritis.
Compared with Illinois prescribers
Dr. Liu wrote 12 prescriptions for Meloxicam, about 23% as often as the typical Illinois prescriber of it (53). Medicare paid $1.98 per fill, versus $4.12 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
Carisoprodol is used short-term to treat muscle pain and discomfort.
Compared with Illinois prescribers
Dr. Liu wrote 11 prescriptions for Carisoprodol, about half as often as the typical Illinois prescriber of it (19). Medicare paid $5.97 per fill, versus $14.28 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 multiple sclerosis (MS).
Compared with Illinois prescribers
Dr. Liu wrote 11 prescriptions for Copaxone, about half as often as the typical Illinois prescriber of it (22). Medicare paid $5,640.40 per fill, versus $6,379.87 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. Liu’s prescriptions
What does Dr. Liu prescribe most?
In 2024 Medicare Part D data, Dr. Liu's most prescribed medications were Memantine Hcl (338), Donepezil Hcl (256) and Topiramate (212).
How does Dr. Liu's prescribing compare with other Illinois prescribers?
Of the 40 medications with a state comparison, Dr. Liu prescribes 12 more often than the typical Illinois prescriber, 14 about as often and 14 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Liu 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.
