DR. GUILLERMO L MONTANEZ JR. MD
Prescription History 1902878721
Specialist in Mcallen, TX

Active since February 06, 2006PECOS Enrolled
1200 E SAVANNAH AVE, SUITE 18, MCALLEN, TX 78503(956) 631-8354(956) 631-8441 Get Directions

NPPES record last updated: July 18, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DR. GUILLERMO L MONTANEZ JR. MD, an active Specialist specialist practicing in Mcallen, TX. Our medical registry currently tracks 1 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 11 documented patient claims. Among these therapy options, the most frequently utilized medication is Myrbetriq, which accounts for 11 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.

1
Medication
11
Total Claims
17
30-Day Fills
Myrbetriq
Most Prescribed · 11 claims
View details
1 medication · 2024 Medicare Part D
Medicare Part D medications prescribed by DR. GUILLERMO L MONTANEZ JR. MD in 2024, with prescription volumes, average cost per fill, and TX state comparisons
Medication Prescriptions (2024)Rx (2024) Avg Cost per FillCost / Fill Vs. Other TX PrescribersVs. TX Avg
MyrbetriqMirabegron11$690.18▼ Less than typical

About Myrbetriq: This medication is used to treat certain bladder problems (overactive bladder, neurogenic detrusor overactivity). Show more ▾

Overactive bladder is a problem with how your bladder stores urine. Neurogenic detrusor overactivity is a bladder control condition caused by brain, spinal cord, or nerve problems. Symptoms of these conditions may include frequent urination, strong sudden urges to urinate that are hard to control, or involuntary loss of urine (incontinence). Mirabegron works by relaxing a certain bladder muscle (detrusor), which helps the bladder hold more urine and lessens symptoms of overactive bladder and neurogenic detrusor overactivity. A beta3-adrenergic receptor agonist.

In 2024, this provider wrote 11 Medicare prescriptions for Myrbetriq, about a quarter of the volume of the typical Texas prescriber of this medication (43.4). Medicare paid an average of $690.18 per fill, versus $682.81 statewide.

How often this provider prescribes it

This provider
11
TX average
43.4

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
$690.18
TX average
$682.81

Gross Part D cost per fill; not the patient's out-of-pocket price.

17
30-Day Fills
standardized to 30-day supplies
510
Days of Medication
total across all patients in 2024
No medications match the current filters.
▲ 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 DR. GUILLERMO L MONTANEZ JR. MD is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, 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 Specialist prescribing approach at this Mcallen, 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 among TX prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.

About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.