MRS. IRMA IVONNE CAMACHO VILLARREAL FNP
Prescription History 1689925521
Nurse Practitioner - Psychiatric/Mental Health in Brownsville, TX

Active since October 01, 2012PECOS Enrolled
2137 E 22ND ST, BROWNSVILLE, TX 78521(956) 548-7400(956) 621-3689 Get Directions

NPPES record last updated: July 10, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for MRS. IRMA IVONNE CAMACHO VILLARREAL FNP, an active Psychiatric/Mental Health specialist practicing in Brownsville, TX. Our medical registry currently tracks 11 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 250 documented patient claims. Among these therapy options, the most frequently utilized medication is Clozapine, which accounts for 42 claims alone. Use the table below to sort by claims, cost, or utilization compared with the state average; select any medication for its full profile.

11
Medications
250
Total Claims
250
30-Day Fills
Clozapine
Most Prescribed · 42 claims
View details
11 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by MRS. IRMA IVONNE CAMACHO VILLARREAL FNP in 2023, with prescription volumes, average cost per fill, and TX state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other TX PrescribersVs. TX Avg

About Clozapine: See also Warning section. Show more ▾

This medication is used to treat certain mental/mood disorders (schizophrenia, schizoaffective disorders). Clozapine is a psychiatric medication (anti-psychotic type) that works by helping to restore the balance of certain natural substances (neurotransmitters) in the brain. Clozapine decreases hallucinations and helps prevent suicide in people who are likely to try to harm themselves. It helps you to think more clearly and positively about yourself, feel less nervous, and take part in everyday life. A tricylic dibenzodiazepine, classified as an atypical antipsychotic agent. It binds several types of central nervous system receptors, and displays a unique pharmacological profile. Clozapine is a serotonin antagonist, with strong binding to 5-HT 2A/2C receptor subtype. It also displays strong affinity to several dopaminergic receptors, but shows only weak antagonism at the dopamine D2 receptor, a receptor commonly thought to modulate neuroleptic activity. Agranulocytosis is a major adverse effect associated with administration of this agent.

In 2023, this provider wrote 42 Medicare prescriptions for Clozapine, about the same volume as the typical Texas prescriber of this medication (41). Medicare paid an average of $39.68 per fill, versus $90.26 statewide.

How often this provider prescribes it

This provider
42
TX average
41.0

This provider's prescribing volume for this medication is in line with the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$39.68
TX average
$90.26

This provider's average cost per fill is below the TX average for this medication.

42
30-Day Fills
standardized to 30-day supplies
594
Days of Medication
total across all patients in 2023

About Olanzapine: Olanzapine is used to treat certain mental/mood conditions (such as schizophrenia, bipolar disorder). Show more ▾

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. 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.

In 2023, this provider wrote 41 Medicare prescriptions for Olanzapine, about the same volume as the typical Texas prescriber of this medication (44). Medicare paid an average of $27.49 per fill, versus $32.58 statewide.

How often this provider prescribes it

This provider
41
TX average
44.0

This provider's prescribing volume for this medication is in line with the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$27.49
TX average
$32.58

This provider's average cost per fill is below the TX average for this medication.

41
30-Day Fills
standardized to 30-day supplies
860
Days of Medication
total across all patients in 2023

About Divalproex Sodium Er: This medication is used to treat seizure disorders, certain psychiatric conditions (manic phase of bipolar disorder), and to prevent migraine headaches. Show more ▾

It works by restoring the balance of certain natural substances (neurotransmitters) in the brain. A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS.

In 2023, this provider wrote 28 Medicare prescriptions for Divalproex Sodium Er, about 72% of the volume of the typical Texas prescriber of this medication (39). Medicare paid an average of $44.80 per fill, versus $89.65 statewide.

How often this provider prescribes it

This provider
28
TX average
39.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$44.80
TX average
$89.65

This provider's average cost per fill is below the TX average for this medication.

28
30-Day Fills
standardized to 30-day supplies
338
Days of Medication
total across all patients in 2023

About Clonazepam: Clonazepam is used to prevent and control seizures. Show more ▾

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. 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.

In 2023, this provider wrote 25 Medicare prescriptions for Clonazepam, about half the volume of the typical Texas prescriber of this medication (50). Medicare paid an average of $5.13 per fill, versus $9.40 statewide.

How often this provider prescribes it

This provider
25
TX average
50.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$5.13
TX average
$9.40

This provider's average cost per fill is below the TX average for this medication.

25
30-Day Fills
standardized to 30-day supplies
532
Days of Medication
total across all patients in 2023

About Lorazepam: This medication is used to treat serious seizures that do not stop (status epilepticus). Show more ▾

It is also used before surgeries or procedures to cause drowsiness, decrease anxiety, and cause forgetfulness about the procedure or surgery. Lorazepam belongs to a class of medications called benzodiazepines, which produce a calming effect on the brain and nerves (central nervous system). It is thought to work by increasing the effect of a certain natural chemical (GABA) in the brain. A benzodiazepine used as an anti-anxiety agent with few side effects. It also has hypnotic, anticonvulsant, and considerable sedative properties and has been proposed as a preanesthetic agent.

In 2023, this provider wrote 21 Medicare prescriptions for Lorazepam, about half the volume of the typical Texas prescriber of this medication (42). Medicare paid an average of $6.83 per fill, versus $7.67 statewide.

How often this provider prescribes it

This provider
21
TX average
42.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$6.83
TX average
$7.67

This provider's average cost per fill is below the TX average for this medication.

21
30-Day Fills
standardized to 30-day supplies
442
Days of Medication
total across all patients in 2023

About Alprazolam: Alprazolam is used to treat anxiety and panic disorders. Show more ▾

It belongs to a class of medications called benzodiazepines which act on the brain and nerves (central nervous system) to produce a calming effect. It works by enhancing the effects of a certain natural chemical in the body (GABA). A triazolobenzodiazepine compound with antianxiety and sedative-hypnotic actions, that is efficacious in the treatment of PANIC DISORDERS, with or without AGORAPHOBIA, and in generalized ANXIETY DISORDERS. (From AMA Drug Evaluations Annual, 1994, p238)

In 2023, this provider wrote 20 Medicare prescriptions for Alprazolam, about a third of the volume of the typical Texas prescriber of this medication (68). Medicare paid an average of $5.21 per fill, versus $8.23 statewide.

How often this provider prescribes it

This provider
20
TX average
68.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$5.21
TX average
$8.23

This provider's average cost per fill is below the TX average for this medication.

20
30-Day Fills
standardized to 30-day supplies
391
Days of Medication
total across all patients in 2023

About Fluvoxamine Maleate: Fluvoxamine is used to treat obsessive-compulsive disorder (OCD). Show more ▾

It helps decrease thoughts that are unwanted or that don't go away (obsessions), and it helps to reduce the urge to perform repeated tasks (compulsions such as hand-washing, counting, checking) that interfere with daily living. Fluvoxamine is known as a selective serotonin reuptake inhibitor (SSRI). This medication works by helping to restore the balance of a certain natural substance (serotonin) in the brain. A selective serotonin reuptake inhibitor that is used in the treatment of DEPRESSION and a variety of ANXIETY DISORDERS.

In 2023, this provider wrote 19 Medicare prescriptions for Fluvoxamine Maleate, about 83% of the volume of the typical Texas prescriber of this medication (23). Medicare paid an average of $40.62 per fill, versus $48.30 statewide.

How often this provider prescribes it

This provider
19
TX average
23.0

This provider's prescribing volume for this medication is in line with the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$40.62
TX average
$48.30

This provider's average cost per fill is below the TX average for this medication.

19
30-Day Fills
standardized to 30-day supplies
406
Days of Medication
total across all patients in 2023

About Haloperidol: Haloperidol is used to treat certain mental/mood disorders (such as schizophrenia, schizoaffective disorders). Show more ▾

This medicine helps you to think more clearly, feel less nervous, and take part in everyday life. It can also help prevent suicide in people who are likely to harm themselves. It also reduces aggression and the desire to hurt others. It can decrease negative thoughts and hallucinations. Haloperidol can also be used to treat uncontrolled movements and outbursts of words/sounds related to Tourette's syndrome. Haloperidol is also used for severe behavior problems in hyperactive children when other treatments or medications have not worked. Haloperidol is a psychiatric medication (antipsychotic-type) that works by helping to restore the balance of certain natural substances in the brain (neurotransmitters). A phenyl-piperidinyl-butyrophenone that is used primarily to treat SCHIZOPHRENIA and other PSYCHOSES. It is also used in schizoaffective disorder, DELUSIONAL DISORDERS, ballism, and TOURETTE SYNDROME (a drug of choice) and occasionally as adjunctive therapy in INTELLECTUAL DISABILITY and the chorea of HUNTINGTON DISEASE. It is a potent antiemetic and is used in the treatment of intractable HICCUPS. (From AMA Drug Evaluations Annual, 1994, p279)

In 2023, this provider wrote 15 Medicare prescriptions for Haloperidol, about half the volume of the typical Texas prescriber of this medication (31). Medicare paid an average of $15.94 per fill, versus $40.15 statewide.

How often this provider prescribes it

This provider
15
TX average
31.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$15.94
TX average
$40.15

This provider's average cost per fill is below the TX average for this medication.

15
30-Day Fills
standardized to 30-day supplies
139
Days of Medication
total across all patients in 2023

About Divalproex Sodium: This medication is used to treat seizure disorders, certain psychiatric conditions (manic phase of bipolar disorder), and to prevent migraine headaches. Show more ▾

It works by restoring the balance of certain natural substances (neurotransmitters) in the brain. A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS.

In 2023, this provider wrote 14 Medicare prescriptions for Divalproex Sodium, about a quarter of the volume of the typical Texas prescriber of this medication (52). Medicare paid an average of $34.14 per fill, versus $45.97 statewide.

How often this provider prescribes it

This provider
14
TX average
52.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$34.14
TX average
$45.97

This provider's average cost per fill is below the TX average for this medication.

14
30-Day Fills
standardized to 30-day supplies
218
Days of Medication
total across all patients in 2023

About Hydroxyzine Pamoate: Hydroxyzine is used to treat itching caused by allergies. Show more ▾

It is an antihistamine and works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction. Hydroxyzine may also be used short-term to treat anxiety or to help you feel sleepy/relaxed before and after surgery. A histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite CETIRIZINE, it does cause drowsiness. It is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative.

In 2023, this provider wrote 14 Medicare prescriptions for Hydroxyzine Pamoate, about a third of the volume of the typical Texas prescriber of this medication (36). Medicare paid an average of $9.40 per fill, versus $14.07 statewide.

How often this provider prescribes it

This provider
14
TX average
36.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$9.40
TX average
$14.07

This provider's average cost per fill is below the TX average for this medication.

14
30-Day Fills
standardized to 30-day supplies
277
Days of Medication
total across all patients in 2023

About Sertraline Hcl: Sertraline is used to treat depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder (social phobia), and a severe form of premenstrual syndrome (premenstrual dysphoric disorder). Show more ▾

This medication may improve your mood, sleep, appetite, and energy level and may help restore your interest in daily living. It may decrease fear, anxiety, unwanted thoughts, and the number of panic attacks. It may also reduce the urge to perform repeated tasks (compulsions such as hand-washing, counting, and checking) that interfere with daily living. Sertraline is known as a selective serotonin reuptake inhibitor (SSRI). It works by helping to restore the balance of a certain natural substance (serotonin) in the brain.

In 2023, this provider wrote 11 Medicare prescriptions for Sertraline Hcl, about 19% of the volume of the typical Texas prescriber of this medication (58). Medicare paid an average of $6.25 per fill, versus $11.23 statewide.

How often this provider prescribes it

This provider
11
TX average
58.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$6.25
TX average
$11.23

This provider's average cost per fill is below the TX average for this medication.

11
30-Day Fills
standardized to 30-day supplies
225
Days of Medication
total across all patients in 2023
No medications match the current filters.
= the 5 medications this provider prescribes most. More than typical Typical Less than typical= prescription volume vs the average TX prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the TX average cost per fill.

About this data. The prescription history for MRS. IRMA IVONNE CAMACHO VILLARREAL FNP is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2023, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Psychiatric/Mental Health prescribing approach at this Brownsville, TX practice.

Reading the costs. Drug costs are gross amounts paid to pharmacies under Part D, including both plan and beneficiary payments. They are not the price a patient pays at the pharmacy counter. Medications with fewer than 11 claims are excluded from the federal source data, and state comparisons use the average volume among TX prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.