CHRISTOPHER KEILTY DARNALL M.D.
Prescription History 1225204530
Psychiatry & Neurology - Sleep Medicine in Austin, TX


Quality Rating: 75 out of 100 score

NPI Status: Active since May 06, 2008

Contact Information

11714 WILSON PARKE AVE STE 150
AUSTIN, TX
ZIP 78726
Phone: (737) 247-7200
Fax: (512) 406-7368

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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 CHRISTOPHER KEILTY DARNALL M.D., an active Sleep Medicine specialist practicing in Austin, TX. Our medical registry currently tracks 12 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 444 documented patient claims. Among these therapy options, the most frequently utilized medication is Trazodone Hcl, which accounts for 89 claims alone.


Armodafinil

Generic Formulation: ArmodafinilSpecialty: Neurology
Provider Metrics Summary
Total Claims 41
30-Day Fills 67.0
Days Supply 2,005
TX State Average Benchmarks
Peer Average Claims18.0
Peer Average 30-Day Fills21.8
Peer Average Days Supply642
Highly Elevated Utilization

This provider exhibits a high preference for this treatment path, registering a volume 127.8% higher than the standard regional baseline profile for TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $7,239.81 across this reporting matrix range.

Provider Avg Cost Per Claim

$176.58

State Avg Cost Per Claim

$86.39

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 benzhydryl acetamide compound, central nervous system stimulant, and CYP3A4 inducing agent that is used in the treatment of NARCOLEPSY and SLEEP WAKE DISORDERS.

Therapeutic Applications

Armodafinil reduces extreme sleepiness due to narcolepsy and other sleep disorders, such as periods of stopped breathing during sleep (obstructive sleep apnea). It is also used to help you stay awake during work hours if you have a work schedule that keeps you from having a normal sleep routine (shift work sleep disorder). This medication does not cure these sleep disorders and may not get rid of all your sleepiness. Armodafinil does not take the place of getting enough sleep. It should not be used to treat tiredness or hold off sleep in people who do not have a sleep disorder. It is not known how armodafinil works to keep you awake. It is thought to work by affecting certain substances in the brain that control the sleep/wake cycle.

Clonazepam

Generic Formulation: ClonazepamSpecialty: Neurology
Provider Metrics Summary
Total Claims 24
30-Day Fills 39.0
Days Supply 1,170
TX State Average Benchmarks
Peer Average Claims50.0
Peer Average 30-Day Fills56.7
Peer Average Days Supply1,631
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 52.0% less volume than the regional standard for practitioners inside TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $182.73 across this reporting matrix range.

Provider Avg Cost Per Claim

$7.61

State Avg Cost Per Claim

$9.40

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

An anticonvulsant used for several types of seizures, including myotonic or atonic seizures, photosensitive epilepsy, and absence seizures, although tolerance may develop. It is seldom effective in generalized tonic-clonic or partial seizures. The mechanism of action appears to involve the enhancement of GAMMA-AMINOBUTYRIC ACID receptor responses.

Therapeutic Applications

Clonazepam is used to prevent and control seizures. This medication is known as an anticonvulsant or antiepileptic drug. It is also used to treat panic attacks. Clonazepam works by calming your brain and nerves. It belongs to a class of drugs called benzodiazepines.

Doxepin Hcl

Generic Formulation: Doxepin HclSpecialty: Neurology
Provider Metrics Summary
Total Claims 26
30-Day Fills 52.0
Days Supply 1,560
TX State Average Benchmarks
Peer Average Claims25.0
Peer Average 30-Day Fills35.5
Peer Average Days Supply1,039
Standard Average Utilization

This provider's prescribing patterns for this therapeutic formulation sit directly in line with standard baseline averages across TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $7,859.13 across this reporting matrix range.

Provider Avg Cost Per Claim

$302.27

State Avg Cost Per Claim

$54.35

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 mental/mood problems such as depression and anxiety. It may help improve mood and feelings of well-being, relieve anxiety and tension, help you sleep better, and increase your energy level. This medication belongs to a class of medications called tricyclic antidepressants. It works by affecting the balance of certain natural chemicals (neurotransmitters) in the brain.

Eszopiclone

Generic Formulation: EszopicloneSpecialty: Neurology
Provider Metrics Summary
Total Claims 55
30-Day Fills 69.0
Days Supply 1,947
TX State Average Benchmarks
Peer Average Claims21.0
Peer Average 30-Day Fills26.3
Peer Average Days Supply778
Highly Elevated Utilization

This provider exhibits a high preference for this treatment path, registering a volume 161.9% higher than the standard regional baseline profile for TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $896.97 across this reporting matrix range.

Provider Avg Cost Per Claim

$16.31

State Avg Cost Per Claim

$36.22

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 pyridine, pyrazine, and piperazine derivative that is used as a HYPNOTIC AND SEDATIVE in the treatment of INSOMNIA.

Therapeutic Applications

This medication is used to treat a certain sleep problem (insomnia). It may help you fall asleep faster, stay asleep longer, and lessen how often you wake up during the night, so you can get a better night's rest. Eszopiclone belongs to a class of drugs called sedative-hypnotics. It acts on your brain to produce a calming effect. Use of this medication is usually limited to short treatment periods of 1 to 2 weeks or less. If your insomnia continues for a longer time, talk to your doctor to see if you need other treatment.

Gabapentin

Generic Formulation: GabapentinSpecialty: Neurology
Provider Metrics Summary
Total Claims 35
30-Day Fills 59.0
Days Supply 1,770
TX State Average Benchmarks
Peer Average Claims94.0
Peer Average 30-Day Fills159.7
Peer Average Days Supply4,701
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 62.8% less volume than the regional standard for practitioners inside TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $463.06 across this reporting matrix range.

Provider Avg Cost Per Claim

$13.23

State Avg Cost Per Claim

$21.94

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 cyclohexane-gamma-aminobutyric acid derivative that is used for the treatment of PARTIAL SEIZURES; NEURALGIA; and RESTLESS LEGS SYNDROME.

Therapeutic Applications

Gabapentin is used with other medications to prevent and control seizures. It is also used to relieve nerve pain following shingles (a painful rash due to herpes zoster infection) in adults. Gabapentin is known as an anticonvulsant or antiepileptic drug.

Methadone Hcl

Generic Formulation: Methadone HclSpecialty: Neurology
Provider Metrics Summary
Total Claims 12
30-Day Fills 12.0
Days Supply 360
TX State Average Benchmarks
Peer Average Claims40.0
Peer Average 30-Day Fills40.6
Peer Average Days Supply1,164
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 70.0% less volume than the regional standard for practitioners inside TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $117.80 across this reporting matrix range.

Provider Avg Cost Per Claim

$9.82

State Avg Cost Per Claim

$19.25

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 synthetic opioid that is used as the hydrochloride. It is an opioid analgesic that is primarily a mu-opioid agonist. It has actions and uses similar to those of MORPHINE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1082-3)

Therapeutic Applications

This medication is used to treat addiction to opioids (such as heroin) as part of an approved treatment program. Methadone belongs to a class of drugs known as opioid analgesics. It helps prevent withdrawal symptoms caused by stopping other opioids.

Modafinil

Generic Formulation: ModafinilSpecialty: Neurology
Provider Metrics Summary
Total Claims 16
30-Day Fills 38.0
Days Supply 1,113
TX State Average Benchmarks
Peer Average Claims20.0
Peer Average 30-Day Fills25.3
Peer Average Days Supply748
Standard Average Utilization

This provider's prescribing patterns for this therapeutic formulation sit directly in line with standard baseline averages across TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $1,341.37 across this reporting matrix range.

Provider Avg Cost Per Claim

$83.84

State Avg Cost Per Claim

$128.37

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 benzhydryl acetamide compound, central nervous system stimulant, and CYP3A4 inducing agent that is used in the treatment of NARCOLEPSY and SLEEP WAKE DISORDERS.

Therapeutic Applications

Modafinil reduces extreme sleepiness due to narcolepsy and other sleep disorders, such as periods of stopped breathing during sleep (obstructive sleep apnea). It is also used to help you stay awake during work hours if you have a work schedule that keeps you from having a normal sleep routine (shift work sleep disorder). This medication does not cure these sleep disorders and may not get rid of all your sleepiness. Modafinil does not take the place of getting enough sleep. It should not be used to treat tiredness or hold off sleep in people who do not have a sleep disorder. It is not known how modafinil works to keep you awake. It is thought to work by affecting certain substances in the brain that control the sleep/wake cycle.

Pramipexole Dihydrochloride

Generic Formulation: Pramipexole Di-HclSpecialty: Neurology
Provider Metrics Summary
Total Claims 61
30-Day Fills 127.0
Days Supply 3,795
TX State Average Benchmarks
Peer Average Claims25.0
Peer Average 30-Day Fills50.3
Peer Average Days Supply1,488
Highly Elevated Utilization

This provider exhibits a high preference for this treatment path, registering a volume 144.0% higher than the standard regional baseline profile for TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $567.29 across this reporting matrix range.

Provider Avg Cost Per Claim

$9.30

State Avg Cost Per Claim

$19.94

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

Pramipexole is used alone or with other medications to treat Parkinson's disease. It can improve your ability to move and can decrease shakiness (tremor), stiffness, slowed movement, and unsteadiness. It may also decrease the number of episodes of not being able to move (on-off syndrome). Pramipexole is a dopamine agonist that works by helping to restore the balance of a certain natural substance (dopamine) in the brain.

Temazepam

Generic Formulation: TemazepamSpecialty: Neurology
Provider Metrics Summary
Total Claims 14
30-Day Fills 14.0
Days Supply 420
TX State Average Benchmarks
Peer Average Claims31.0
Peer Average 30-Day Fills36.5
Peer Average Days Supply1,077
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 54.8% less volume than the regional standard for practitioners inside TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $93.23 across this reporting matrix range.

Provider Avg Cost Per Claim

$6.66

State Avg Cost Per Claim

$14.36

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 that acts as a GAMMA-AMINOBUTYRIC ACID modulator and anti-anxiety agent.

Therapeutic Applications

This medication is used to treat a certain sleep problem (insomnia). It may help you fall asleep faster, stay asleep longer, and lessen how often you wake up during the night, so you can get a better night's rest. Temazepam belongs to a class of drugs called benzodiazepines. It acts on your brain to produce a calming effect. Use of this medication is usually limited to short treatment periods of 1 to 2 weeks or less. If your insomnia continues for a longer time, talk to your doctor to see if you need other treatment.

Trazodone Hcl

Generic Formulation: Trazodone HclSpecialty: Neurology
Provider Metrics Summary
Total Claims 89
30-Day Fills 130.0
Days Supply 3,832
TX State Average Benchmarks
Peer Average Claims64.0
Peer Average 30-Day Fills112.5
Peer Average Days Supply3,315
Elevated Utilization

This provider maintains an active emphasis on this therapeutic option, recording 39.1% more claims than the standard regional baseline profile for TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $479.03 across this reporting matrix range.

Provider Avg Cost Per Claim

$5.38

State Avg Cost Per Claim

$12.94

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.

Zaleplon

Generic Formulation: ZaleplonSpecialty: Neurology
Provider Metrics Summary
Total Claims 30
30-Day Fills 38.0
Days Supply 1,044
TX State Average Benchmarks
Peer Average Claims18.0
Peer Average 30-Day Fills20.7
Peer Average Days Supply608
Highly Elevated Utilization

This provider exhibits a high preference for this treatment path, registering a volume 66.7% higher than the standard regional baseline profile for TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $389.54 across this reporting matrix range.

Provider Avg Cost Per Claim

$12.98

State Avg Cost Per Claim

$28.56

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 for a short time to treat people who have trouble falling asleep. If you have other sleep problems such as not being able to sleep through the night, this medication may not be right for you. Zaleplon is known as a hypnotic. It works on certain centers in the brain to relax you and help you fall asleep faster.

Zolpidem Tartrate

Generic Formulation: Zolpidem TartrateSpecialty: Neurology
Provider Metrics Summary
Total Claims 41
30-Day Fills 51.0
Days Supply 1,530
TX State Average Benchmarks
Peer Average Claims47.0
Peer Average 30-Day Fills60.6
Peer Average Days Supply1,797
Standard Average Utilization

This provider's prescribing patterns for this therapeutic formulation sit directly in line with standard baseline averages across TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $255.92 across this reporting matrix range.

Provider Avg Cost Per Claim

$6.24

State Avg Cost Per Claim

$8.93

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

An imidazopyridine derivative and short-acting GABA-A receptor agonist that is used for the treatment of INSOMNIA.

Therapeutic Applications

Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults. If you have trouble falling asleep, it helps you fall asleep faster, so you can get a better night's rest. Zolpidem belongs to a class of drugs called sedative-hypnotics. It acts on your brain to produce a calming effect.

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 CHRISTOPHER KEILTY DARNALL M.D. provides transparency into local medical care patterns within Austin, TX.

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 **Sleep Medicine** 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.