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GARWEN CHEN MD
Prescription History 1972959617
Psychiatry & Neurology - Psychiatry in Saint Louis, MO

NPI Status: Active since May 12, 2016

Contact Information

10018 KENNERLY RD
SAINT LOUIS, MO
ZIP 63128
Phone: (314) 525-7275

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Prescription History for Informed Healthcare Decisions

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for GARWEN CHEN MD, an active Psychiatry specialist practicing in Saint Louis, MO. Our medical registry currently tracks 8 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 136 documented patient claims. Among these therapy options, the most frequently utilized medication is Olanzapine, which accounts for 33 claims alone.

Medication Index

Aripiprazole

Generic Formulation: AripiprazoleSpecialty: Psychiatry
Provider Metrics Summary
Total Claims 14
30-Day Fills 14.0
Days Supply 388
MO State Average Benchmarks
Peer Average Claims54.0
Peer Average 30-Day Fills67.2
Peer Average Days Supply1,880
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 74.1% less volume than the regional standard for practitioners inside MO. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $1,181.74 across this reporting matrix range.

Provider Avg Cost Per Claim

$84.41

State Avg Cost Per Claim

$114.13

Note on Expenses: These indicators represent gross infrastructure resource tracking paid directly to supply pharmacy networks by Medicare Part D configurations. These calculations do not track individual patient insurance tier copays or out-of-pocket shelf prices at retail checkout lanes.

Clinical Summary

A piperazine and quinolone derivative that is used primarily as an antipsychotic agent. It is a partial agonist of SEROTONIN RECEPTOR, 5-HT1A and DOPAMINE D2 RECEPTORS, where it also functions as a post-synaptic antagonist, and an antagonist of SEROTONIN RECEPTOR, 5-HT2A. It is used for the treatment of SCHIZOPHRENIA and BIPOLAR DISORDER, and as an adjunct therapy for the treatment of depression.

Therapeutic Applications

Aripiprazole is used to treat certain mental/mood disorders (such as bipolar disorder, schizophrenia, Tourette's syndrome, and irritability associated with autistic disorder). It may also be used in combination with other medication to treat depression. Aripiprazole is known as an antipsychotic drug (atypical type). It works by helping to restore the balance of certain natural chemicals in the brain (neurotransmitters). This medication can decrease hallucinations and improve your concentration. It helps you to think more clearly and positively about yourself, feel less nervous, and take a more active part in everyday life. Aripiprazole can treat severe mood swings and decrease how often mood swings occur.

Fluoxetine Hcl

Generic Formulation: Fluoxetine HclSpecialty: Psychiatry
Provider Metrics Summary
Total Claims 15
30-Day Fills 15.0
Days Supply 420
MO State Average Benchmarks
Peer Average Claims51.0
Peer Average 30-Day Fills90.0
Peer Average Days Supply2,621
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 70.6% less volume than the regional standard for practitioners inside MO. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $276.05 across this reporting matrix range.

Provider Avg Cost Per Claim

$18.40

State Avg Cost Per Claim

$14.13

Note on Expenses: These indicators represent gross infrastructure resource tracking paid directly to supply pharmacy networks by Medicare Part D configurations. These calculations do not track individual patient insurance tier copays or out-of-pocket shelf prices at retail checkout lanes.

Clinical Summary

The first highly specific serotonin uptake inhibitor. It is used as an antidepressant and often has a more acceptable side-effects profile than traditional antidepressants.

Therapeutic Applications

This long-acting form of fluoxetine is used to treat depression in people who have been successfully treated with the form of fluoxetine that is taken daily. Fluoxetine is a selective serotonin reuptake inhibitor (SSRI). SSRIs work by helping to restore the balance of certain natural substances in the brain (neurotransmitters such as serotonin). Fluoxetine may decrease anxiety, improve your mood, sleep, appetite, and energy level and may help restore your interest in daily living.

Levothyroxine Sodium

Generic Formulation: Levothyroxine SodiumSpecialty: Psychiatry
Provider Metrics Summary
Total Claims 13
30-Day Fills 13.0
Days Supply 365
MO State Average Benchmarks
Peer Average Claims184.0
Peer Average 30-Day Fills381.5
Peer Average Days Supply10,950
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 92.9% less volume than the regional standard for practitioners inside MO. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $127.85 across this reporting matrix range.

Provider Avg Cost Per Claim

$9.83

State Avg Cost Per Claim

$14.82

Note on Expenses: These indicators represent gross infrastructure resource tracking paid directly to supply pharmacy networks by Medicare Part D configurations. These calculations do not track individual patient insurance tier copays or out-of-pocket shelf prices at retail checkout lanes.

Clinical Summary

The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.

Therapeutic Applications

Levothyroxine is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Having enough thyroid hormone is important for maintaining normal mental and physical activity. In children, having enough thyroid hormone is important for normal mental and physical development. This medication is also used to treat other types of thyroid disorders (such as thyroid cancer). This medication should not be used to treat infertility unless it is caused by low thyroid hormone levels.

Mirtazapine

Generic Formulation: MirtazapineSpecialty: Psychiatry
Provider Metrics Summary
Total Claims 17
30-Day Fills 17.0
Days Supply 494
MO State Average Benchmarks
Peer Average Claims61.0
Peer Average 30-Day Fills83.0
Peer Average Days Supply2,254
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 72.1% less volume than the regional standard for practitioners inside MO. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $275.82 across this reporting matrix range.

Provider Avg Cost Per Claim

$16.22

State Avg Cost Per Claim

$20.80

Note on Expenses: These indicators represent gross infrastructure resource tracking paid directly to supply pharmacy networks by Medicare Part D configurations. These calculations do not track individual patient insurance tier copays or out-of-pocket shelf prices at retail checkout lanes.

Clinical Summary

A piperazinoazepine tetracyclic compound that enhances the release of NOREPINEPHRINE and SEROTONIN through blockage of presynaptic ALPHA-2 ADRENERGIC RECEPTORS. It also blocks both 5-HT2 and 5-HT3 serotonin receptors and is a potent HISTAMINE H1 RECEPTOR antagonist. It is used for the treatment of depression, and may also be useful for the treatment of anxiety disorders.

Therapeutic Applications

Mirtazapine is used to treat depression. It improves mood and feelings of well-being. Mirtazapine is an antidepressant that works by restoring the balance of natural chemicals (neurotransmitters) in the brain.

Olanzapine

Generic Formulation: OlanzapineSpecialty: Psychiatry
Provider Metrics Summary
Total Claims 33
30-Day Fills 33.0
Days Supply 920
MO State Average Benchmarks
Peer Average Claims62.0
Peer Average 30-Day Fills69.9
Peer Average Days Supply1,820
Conservative Utilization

This provider writes prescriptions for this formulation 46.8% less frequently than the standard regional baseline metric for practitioners inside MO. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $2,755.69 across this reporting matrix range.

Provider Avg Cost Per Claim

$83.51

State Avg Cost Per Claim

$33.40

Note on Expenses: These indicators represent gross infrastructure resource tracking paid directly to supply pharmacy networks by Medicare Part D configurations. These calculations do not track individual patient insurance tier copays or out-of-pocket shelf prices at retail checkout lanes.

Clinical Summary

A benzodiazepine derivative that binds SEROTONIN RECEPTORS; MUSCARINIC RECEPTORS; HISTAMINE H1 RECEPTORS; ADRENERGIC ALPHA-1 RECEPTORS; and DOPAMINE RECEPTORS. It is an antipsychotic agent used in the treatment of SCHIZOPHRENIA; BIPOLAR DISORDER; and MAJOR DEPRESSIVE DISORDER; it may also reduce nausea and vomiting in patients undergoing chemotherapy.

Therapeutic Applications

Olanzapine is used to treat certain mental/mood conditions (such as schizophrenia, bipolar disorder). It may also be used in combination with other medication to treat depression. This medication can help to decrease hallucinations and help you to think more clearly and positively about yourself, feel less agitated, and take a more active part in everyday life. Olanzapine belongs to a class of drugs called atypical antipsychotics. It works by helping to restore the balance of certain natural substances in the brain. Talk to the doctor about the risks and benefits of treatment (especially when used by teenagers). See also Precautions section.

Quetiapine Fumarate

Generic Formulation: Quetiapine FumarateSpecialty: Psychiatry
Provider Metrics Summary
Total Claims 16
30-Day Fills 16.0
Days Supply 450
MO State Average Benchmarks
Peer Average Claims72.0
Peer Average 30-Day Fills90.1
Peer Average Days Supply2,421
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 77.8% less volume than the regional standard for practitioners inside MO. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $322.38 across this reporting matrix range.

Provider Avg Cost Per Claim

$20.15

State Avg Cost Per Claim

$28.28

Note on Expenses: These indicators represent gross infrastructure resource tracking paid directly to supply pharmacy networks by Medicare Part D configurations. These calculations do not track individual patient insurance tier copays or out-of-pocket shelf prices at retail checkout lanes.

Clinical Summary

A dibenzothiazepine and ANTIPSYCHOTIC AGENT that targets the SEROTONIN 5-HT2 RECEPTOR; HISTAMINE H1 RECEPTOR, adrenergic alpha1 and alpha2 receptors, as well as the DOPAMINE D1 RECEPTOR and DOPAMINE D2 RECEPTOR. It is used in the treatment of SCHIZOPHRENIA; BIPOLAR DISORDER and DEPRESSIVE DISORDER.

Therapeutic Applications

This medication is used to treat certain mental/mood conditions (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder). Quetiapine is known as an anti-psychotic drug (atypical type). It works by helping to restore the balance of certain natural substances (neurotransmitters) in the brain. This medication can decrease hallucinations and improve your concentration. It helps you to think more clearly and positively about yourself, feel less nervous, and take a more active part in everyday life. It may also improve your mood, sleep, appetite, and energy level. Quetiapine can help prevent severe mood swings or decrease how often mood swings occur.

Risperidone

Generic Formulation: RisperidoneSpecialty: Psychiatry
Provider Metrics Summary
Total Claims 15
30-Day Fills 15.0
Days Supply 418
MO State Average Benchmarks
Peer Average Claims58.0
Peer Average 30-Day Fills65.9
Peer Average Days Supply1,730
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 74.1% less volume than the regional standard for practitioners inside MO. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $433.62 across this reporting matrix range.

Provider Avg Cost Per Claim

$28.91

State Avg Cost Per Claim

$14.07

Note on Expenses: These indicators represent gross infrastructure resource tracking paid directly to supply pharmacy networks by Medicare Part D configurations. These calculations do not track individual patient insurance tier copays or out-of-pocket shelf prices at retail checkout lanes.

Clinical Summary

A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA.

Therapeutic Applications

Risperidone is used to treat a certain mental/mood disorder called schizophrenia. This medication can decrease hallucinations, help you to think more clearly and positively about yourself, feel less agitated, and take a more active part in everyday life. Risperidone is an antipsychotic drug (atypical type). It works by helping to restore the balance of certain natural substances in the brain.

Trazodone Hcl

Generic Formulation: Trazodone HclSpecialty: Psychiatry
Provider Metrics Summary
Total Claims 13
30-Day Fills 13.0
Days Supply 375
MO State Average Benchmarks
Peer Average Claims89.0
Peer Average 30-Day Fills143.7
Peer Average Days Supply4,122
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 85.4% less volume than the regional standard for practitioners inside MO. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $67.17 across this reporting matrix range.

Provider Avg Cost Per Claim

$5.17

State Avg Cost Per Claim

$12.38

Note on Expenses: These indicators represent gross infrastructure resource tracking paid directly to supply pharmacy networks by Medicare Part D configurations. These calculations do not track individual patient insurance tier copays or out-of-pocket shelf prices at retail checkout lanes.

Therapeutic Applications

This medication is used to treat depression. It may help to improve your mood, appetite, and energy level as well as decrease anxiety and insomnia related to depression. Trazodone works by helping to restore the balance of a certain natural chemical (serotonin) in the brain.

Dataset Methodology & CMS Source Information

This analytical profile maps public infrastructure records sourced directly from official **Centers for Medicare & Medicaid Services (CMS)** public data releases. The statistics above track documented pharmaceutical treatment trends assigned to beneficiaries specifically under federal public programs. Evaluating the prescriptive footprints of clinical practitioners like GARWEN CHEN MD provides transparency into local medical care patterns within Saint Louis, MO.

Key Learning Objectives for this Profile:

  • Prescribing Frequencies: Track and evaluate the volume metrics of specific brand-name and generic medical formulas chosen by this provider over time.
  • Clinical Focus Areas: Identify how the provider distributes therapeutic selections across medical care options to gain insight into their true day-to-day **Psychiatry** practice concentrations.
  • Program Cost Awareness: Review the calculated total systemic drug costs and raw transactional volumes linked to these orders to better anticipate network insurance coverage structures.
  • Patient-Centered Evaluation: Cross-reference localized regional care comparisons to align practitioner habits directly with your proactive health maintenance goals.

Data Scope Exclusion & Limitations: The data elements presented above explicitly reflect prescription orders processed for Medicare beneficiaries during the year 2023. This informational profile does not aggregate prescription data for individuals utilizing private commercial health plans, state Medicaid coverage, or self-pay options. However, because medical decision-making remains highly consistent across clinical settings, this public registry provides a reliable proxy for understanding the general prescribing preferences and pharmaceutical care approach used by this provider.