PATRICIA ISABELLA RONDAIN MD
Prescription History 1780160721
Internal Medicine - Infectious Disease in Billings, MT

Active since July 12, 2018PECOS EnrolledAccepts Medicare Assignment
94.3/100
CMS Quality Rating
801 N 29TH ST, BILLINGS, MT 59101(406) 238-2500 Get Directions

NPPES record last updated: September 6, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 6, 2023, Jul 12, 2018 (2 updates tracked since 2018).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for PATRICIA ISABELLA RONDAIN MD, an active Infectious Disease specialist practicing in Billings, MT. Our medical registry currently tracks 4 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 74 documented patient claims. Among these therapy options, the most frequently utilized medication is Biktarvy, which accounts for 31 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.

4
Medications
74
Total Claims
76
30-Day Fills
Biktarvy
Most Prescribed · 31 claims
View details
4 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by PATRICIA ISABELLA RONDAIN MD in 2023, with prescription volumes, average cost per fill, and MT state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other MT PrescribersVs. MT Avg

About Biktarvy: This combination product is used by itself to help control HIV infection. Show more ▾

It helps to decrease the amount of HIV in your body so your immune system can work better. This lowers your chance of getting HIV complications (such as new infections, cancer) and improves your quality of life. This product is a combination of 3 different drugs: bictegravir, emtricitabine, and tenofovir alafenamide. Bictegravir is called an integrase strand transfer inhibitor-INSTI. Emtricitabine is called a nucleoside reverse transcriptase inhibitor, while tenofovir alafenamide is called a nucleotide reverse transcriptase inhibitor. Emtricitabine and tenofovir alafenamide are often called NRTIs. Bictegravir/emtricitabine/tenofovir alafenamide is not a cure for HIV infection. To decrease your risk of spreading HIV disease to others, continue to take all HIV medications exactly as prescribed by your doctor. Use an effective barrier method (latex or polyurethane condoms/dental dams) during sexual activity as directed by your doctor. Do not share personal items (such as needles/syringes, toothbrushes, and razors) that may have contacted blood or other body fluids. Consult your doctor or pharmacist for more details.

In 2023, this provider wrote 31 Medicare prescriptions for Biktarvy, about the same volume as the typical Montana prescriber of this medication (31). Medicare paid an average of $4,099.21 per fill, versus $3,826.81 statewide.

How often this provider prescribes it

This provider
31
MT average
31.0

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

What Medicare paid per fill

This provider
$4,099.21
MT average
$3,826.81

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

31
30-Day Fills
standardized to 30-day supplies
930
Days of Medication
total across all patients in 2023

About Cefazolin Sodium: Cefazolin is an antibiotic used to treat a wide variety of bacterial infections. Show more ▾

It may also be used before and during certain surgeries to help prevent infection. This medication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria. A semisynthetic cephalosporin analog with broad-spectrum antibiotic action due to inhibition of bacterial cell wall synthesis. It attains high serum levels and is excreted quickly via the urine.

In 2023, this provider wrote 16 Medicare prescriptions for Cefazolin Sodium, about 1.5 times the volume of the typical Montana prescriber of this medication (11). Medicare paid an average of $56.58 per fill, versus $45.90 statewide.

How often this provider prescribes it

This provider
16
MT average
11.0

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

What Medicare paid per fill

This provider
$56.58
MT average
$45.90

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

16
30-Day Fills
standardized to 30-day supplies
118
Days of Medication
total across all patients in 2023

About Triumeq: This product contains 3 drugs: abacavir, dolutegravir, and lamivudine. Show more ▾

It is used to help control HIV infection. It helps to decrease the amount of HIV in your body so your immune system can work better. This lowers your chance of getting HIV complications (such as new infections, cancer) and improves your quality of life. Abacavir and lamivudine belong to a class of drugs known as nucleoside reverse transcriptase inhibitors (NRTIs). Dolutegravir belongs to a class of drugs known as integrase inhibitors. This medication is not a cure for HIV infection. To decrease your risk of spreading HIV disease to others, continue to take all HIV medications exactly as prescribed by your doctor. Use an effective barrier method (latex or polyurethane condoms/dental dams) during sexual activity as directed by your doctor. Do not share personal items (such as needles/syringes, toothbrushes, and razors) that may have contacted blood or other body fluids. Consult your doctor or pharmacist for more details.

In 2023, this provider wrote 16 Medicare prescriptions for Triumeq, about the same volume as the typical Montana prescriber of this medication (15). Medicare paid an average of $3,847.46 per fill, versus $3,631.74 statewide.

How often this provider prescribes it

This provider
16
MT average
15.0

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

What Medicare paid per fill

This provider
$3,847.46
MT average
$3,631.74

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

16
30-Day Fills
standardized to 30-day supplies
480
Days of Medication
total across all patients in 2023

About Amoxicillin: Amoxicillin is used to treat a wide variety of bacterial infections. Show more ▾

This medication is a penicillin-type antibiotic. 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. Amoxicillin is also used with other medications to treat stomach/intestinal ulcers caused by the bacteria H. pylori and to prevent the ulcers from returning. A broad-spectrum semisynthetic antibiotic similar to AMPICILLIN except that its resistance to gastric acid permits higher serum levels with oral administration.

In 2023, this provider wrote 11 Medicare prescriptions for Amoxicillin, about a third of the volume of the typical Montana prescriber of this medication (34). Medicare paid an average of $10.63 per fill, versus $3.68 statewide.

How often this provider prescribes it

This provider
11
MT average
34.0

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

What Medicare paid per fill

This provider
$10.63
MT average
$3.68

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

13.3
30-Day Fills
standardized to 30-day supplies
380
Days of Medication
total across all patients in 2023
No medications match the current filters.
More than typical Typical Less than typical= prescription volume vs the average MT prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the MT average cost per fill.

About this data. The prescription history for PATRICIA ISABELLA RONDAIN MD 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 Infectious Disease prescribing approach at this Billings, MT 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 MT prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.