CLAY F ISTRE PA-C
Prescription History 1811214521
Physician Assistant in San Antonio, TX

NPI Status: Active since April 21, 2010

Contact Information

16755 HUEBNER RD
SAN ANTONIO, TX
ZIP 78248
Phone: (210) 493-4357
Fax: (210) 493-4355

Get Directions

Prescription History for Informed Healthcare Decisions

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for CLAY F ISTRE PA-C, an active Physician Assistant specialist practicing in San Antonio, TX. Our medical registry currently tracks 11 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 328 documented patient claims. Among these therapy options, the most frequently utilized medication is Tramadol Hcl, which accounts for 55 claims alone.


Acetaminophen-Codeine

Generic Formulation: Acetaminophen With CodeineSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 47
30-Day Fills 47.0
Days Supply 176
TX State Average Benchmarks
Peer Average Claims44.0
Peer Average 30-Day Fills44.7
Peer Average Days Supply736
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 $153.24 across this reporting matrix range.

Provider Avg Cost Per Claim

$3.26

State Avg Cost Per Claim

$18.55

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

See also Warning section. This combination medication is used to help relieve mild to moderate pain. It contains an opioid pain reliever (codeine) and a non-opioid pain reliever (acetaminophen). Codeine works in the brain to change how your body feels and responds to pain. Acetaminophen can also reduce a fever.

Albuterol Sulfate Hfa

Generic Formulation: Albuterol SulfateSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 14
30-Day Fills 17.9
Days Supply 491
TX State Average Benchmarks
Peer Average Claims51.0
Peer Average 30-Day Fills65.6
Peer Average Days Supply1,666
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 72.5% 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 $293.38 across this reporting matrix range.

Provider Avg Cost Per Claim

$20.96

State Avg Cost Per Claim

$49.62

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 short-acting beta-2 adrenergic agonist that is primarily used as a bronchodilator agent to treat ASTHMA. Albuterol is prepared as a racemic mixture of R(-) and S(+) stereoisomers. The stereospecific preparation of R(-) isomer of albuterol is referred to as levalbuterol.

Therapeutic Applications

Albuterol (also known as salbutamol) is used to treat wheezing and shortness of breath caused by breathing problems such as asthma. It is a quick-relief medication. Albuterol belongs to a class of drugs known as bronchodilators. It works by relaxing the muscles around the airways so that they open up and you can breathe more easily. Controlling symptoms of breathing problems can decrease time lost from work or school.

Amoxicillin-Clavulanate Potass

Generic Formulation: Amoxicillin/Potassium ClavSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 25
30-Day Fills 25.0
Days Supply 239
TX State Average Benchmarks
Peer Average Claims27.0
Peer Average 30-Day Fills27.4
Peer Average Days Supply247
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 $373.13 across this reporting matrix range.

Provider Avg Cost Per Claim

$14.93

State Avg Cost Per Claim

$13.74

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 fixed-ratio combination of amoxicillin trihydrate and potassium clavulanate.

Therapeutic Applications

Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections. It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections.

Cephalexin

Generic Formulation: CephalexinSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 38
30-Day Fills 38.0
Days Supply 230
TX State Average Benchmarks
Peer Average Claims29.0
Peer Average 30-Day Fills32.5
Peer Average Days Supply368
Elevated Utilization

This provider maintains an active emphasis on this therapeutic option, recording 31.0% 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 $224.69 across this reporting matrix range.

Provider Avg Cost Per Claim

$5.91

State Avg Cost Per Claim

$9.13

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 semisynthetic cephalosporin antibiotic with antimicrobial activity similar to that of CEPHALORIDINE or CEPHALOTHIN, but somewhat less potent. It is effective against both gram-positive and gram-negative organisms.

Therapeutic Applications

This medication is used to treat a wide variety of bacterial infections. This medication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria. This medication will not work for viral infections (such as common cold, flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness.

Clindamycin Hcl

Generic Formulation: Clindamycin HclSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 13
30-Day Fills 13.0
Days Supply 89
TX State Average Benchmarks
Peer Average Claims22.0
Peer Average 30-Day Fills22.6
Peer Average Days Supply179
Conservative Utilization

This provider writes prescriptions for this formulation 40.9% less frequently than the standard regional baseline metric for practitioners inside TX. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $121.42 across this reporting matrix range.

Provider Avg Cost Per Claim

$9.34

State Avg Cost Per Claim

$12.03

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 antibacterial agent that is a semisynthetic analog of LINCOMYCIN.

Therapeutic Applications

Clindamycin is used to treat a wide variety of bacterial infections. It is an antibiotic that works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for virus infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections.

Cyclobenzaprine Hcl

Generic Formulation: Cyclobenzaprine HclSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 46
30-Day Fills 46.0
Days Supply 311
TX State Average Benchmarks
Peer Average Claims36.0
Peer Average 30-Day Fills45.1
Peer Average Days Supply1,173
Elevated Utilization

This provider maintains an active emphasis on this therapeutic option, recording 27.8% 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 $160.34 across this reporting matrix range.

Provider Avg Cost Per Claim

$3.49

State Avg Cost Per Claim

$16.21

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

Cyclobenzaprine is used short-term to treat muscle spasms. It is usually used along with rest and physical therapy. It works by helping to relax the muscles. This medication is not recommended for use in older adults because they may be at greater risk for side effects while using this drug. Ask the doctor or pharmacist for details.

Methylprednisolone

Generic Formulation: MethylprednisoloneSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 39
30-Day Fills 39.0
Days Supply 233
TX State Average Benchmarks
Peer Average Claims35.0
Peer Average 30-Day Fills36.3
Peer Average Days Supply243
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 $341.74 across this reporting matrix range.

Provider Avg Cost Per Claim

$8.76

State Avg Cost Per Claim

$10.10

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 PREDNISOLONE derivative with similar anti-inflammatory action.

Therapeutic Applications

Methylprednisolone is used to treat conditions such as arthritis, blood disorders, severe allergic reactions, certain cancers, eye conditions, skin/kidney/intestinal/lung diseases, and immune system disorders. It decreases your immune system's response to various diseases to reduce symptoms such as swelling, pain, and allergic-type reactions. This medication is a corticosteroid hormone. Methylprednisolone may also be used with other medications in hormone disorders.

Ondansetron Odt

Generic Formulation: OndansetronSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 22
30-Day Fills 22.0
Days Supply 138
TX State Average Benchmarks
Peer Average Claims24.0
Peer Average 30-Day Fills25.0
Peer Average Days Supply266
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 $225.99 across this reporting matrix range.

Provider Avg Cost Per Claim

$10.27

State Avg Cost Per Claim

$22.90

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 competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties.

Therapeutic Applications

This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy. It is also used to prevent and treat nausea and vomiting after surgery. Ondansetron works by blocking one of the body's natural substances (serotonin) that causes vomiting.

Sulfamethoxazole-Trimethoprim

Generic Formulation: Sulfamethoxazole/TrimethoprimSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 11
30-Day Fills 11.0
Days Supply 74
TX State Average Benchmarks
Peer Average Claims27.0
Peer Average 30-Day Fills30.4
Peer Average Days Supply411
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 59.3% 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 $38.08 across this reporting matrix range.

Provider Avg Cost Per Claim

$3.46

State Avg Cost Per Claim

$6.17

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 drug combination with broad-spectrum antibacterial activity against both gram-positive and gram-negative organisms. It is effective in the treatment of many infections, including PNEUMOCYSTIS PNEUMONIA in AIDS.

Therapeutic Applications

This medication is a combination of two antibiotics: sulfamethoxazole and trimethoprim. It is used to treat a wide variety of bacterial infections (such as middle ear, urine, respiratory, and intestinal infections). It is also used to prevent and treat a certain type of pneumonia (pneumocystis-type). This medication should not be used by children less than 2 months of age due to the risk of serious side effects. This medication treats only certain types of infections. It will not work for viral infections (such as flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness.

Tizanidine Hcl

Generic Formulation: Tizanidine HclSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 18
30-Day Fills 18.0
Days Supply 123
TX State Average Benchmarks
Peer Average Claims55.0
Peer Average 30-Day Fills72.3
Peer Average Days Supply1,936
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 67.3% 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 $57.81 across this reporting matrix range.

Provider Avg Cost Per Claim

$3.21

State Avg Cost Per Claim

$14.41

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 muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury). It works by helping to relax the muscles.

Tramadol Hcl

Generic Formulation: Tramadol HclSpecialty: Physician Assistant
Provider Metrics Summary
Total Claims 55
30-Day Fills 55.0
Days Supply 237
TX State Average Benchmarks
Peer Average Claims62.0
Peer Average 30-Day Fills63.6
Peer Average Days Supply1,282
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 $95.71 across this reporting matrix range.

Provider Avg Cost Per Claim

$1.74

State Avg Cost Per Claim

$7.68

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 narcotic analgesic proposed for severe pain. It may be habituating.

Therapeutic Applications

See also Warning section. This medication is used to help relieve moderate to moderately severe pain. Tramadol belongs to a class of drugs known as opioid analgesics. It works in the brain to change how your body feels and responds to pain.

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 CLAY F ISTRE PA-C provides transparency into local medical care patterns within San Antonio, 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 **Physician Assistant** 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.