B. RENTZ DUNN JR. M.D.
Prescription History 1154313708
Internal Medicine - Nephrology in Nashville, TN

NPI Status: Active since August 19, 2005

Contact Information

2010 CHURCH ST
STE. 508
NASHVILLE, TN
ZIP 37203
Phone: (615) 329-5072
Fax: (615) 329-5834

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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 B. RENTZ DUNN JR. M.D., an active Nephrology specialist practicing in Nashville, TN. Our medical registry currently tracks 12 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 485 documented patient claims. Among these therapy options, the most frequently utilized medication is Calcitriol, which accounts for 129 claims alone.


Allopurinol

Generic Formulation: AllopurinolSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 117
30-Day Fills 318.6
Days Supply 9,542
TN State Average Benchmarks
Peer Average Claims55.0
Peer Average 30-Day Fills129.6
Peer Average Days Supply3,784
Highly Elevated Utilization

This provider exhibits a high preference for this treatment path, registering a volume 112.7% higher than the standard regional baseline profile for TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $1,228.52 across this reporting matrix range.

Provider Avg Cost Per Claim

$10.50

State Avg Cost Per Claim

$15.31

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 XANTHINE OXIDASE inhibitor that decreases URIC ACID production. It also acts as an antimetabolite on some simpler organisms.

Therapeutic Applications

Allopurinol is used to treat gout and certain types of kidney stones. It is also used to prevent increased uric acid levels in patients receiving cancer chemotherapy. These patients can have increased uric acid levels due to release of uric acid from the dying cancer cells. Allopurinol works by reducing the amount of uric acid made by the body. Increased uric acid levels can cause gout and kidney problems.

Amlodipine Besylate

Generic Formulation: Amlodipine BesylateSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 20
30-Day Fills 45.0
Days Supply 1,350
TN State Average Benchmarks
Peer Average Claims146.0
Peer Average 30-Day Fills348.1
Peer Average Days Supply10,234
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 86.3% less volume than the regional standard for practitioners inside TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $63.93 across this reporting matrix range.

Provider Avg Cost Per Claim

$3.20

State Avg Cost Per Claim

$6.52

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 long-acting dihydropyridine calcium channel blocker. It is effective in the treatment of ANGINA PECTORIS and HYPERTENSION.

Therapeutic Applications

Amlodipine is used with or without other medications to treat high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Amlodipine belongs to a class of drugs known as calcium channel blockers. It works by relaxing blood vessels so blood can flow more easily. Amlodipine is also used to prevent certain types of chest pain (angina). It may help to increase your ability to exercise and decrease the frequency of angina attacks. It should not be used to treat attacks of chest pain when they occur. Use other medications (such as sublingual nitroglycerin) to relieve attacks of chest pain as directed by your doctor.

Calcitriol

Generic Formulation: CalcitriolSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 129
30-Day Fills 302.6
Days Supply 9,038
TN State Average Benchmarks
Peer Average Claims44.0
Peer Average 30-Day Fills89.2
Peer Average Days Supply2,567
Highly Elevated Utilization

This provider exhibits a high preference for this treatment path, registering a volume 193.2% higher than the standard regional baseline profile for TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $1,892.95 across this reporting matrix range.

Provider Avg Cost Per Claim

$14.67

State Avg Cost Per Claim

$20.00

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

The physiologically active form of vitamin D. It is formed primarily in the kidney by enzymatic hydroxylation of 25-hydroxycholecalciferol (CALCIFEDIOL). Its production is stimulated by low blood calcium levels and parathyroid hormone. Calcitriol increases intestinal absorption of calcium and phosphorus, and in concert with parathyroid hormone increases bone resorption.

Therapeutic Applications

Calcitriol is a man-made active form of vitamin D. Most people get enough vitamin D from exposure to the sun and from fortified food products (such as dairy products, vitamins). Vitamin D helps control parathyroid hormone and the levels of certain minerals (such as calcium, phosphorus) that are needed for building and keeping strong bones. Before regular vitamin D can be used by the body, it needs to be changed to the active form by the liver and kidneys. Calcitriol is used in patients with kidney disease who can't make enough of the active form of Vitamin D. This medication is also used to prevent and treat certain types of calcium/phosphorus/parathyroid problems that can happen with long-term kidney dialysis or hypoparathyroidism. Calcitriol is usually used along with specific diet recommendations and sometimes other medications.

Furosemide

Generic Formulation: FurosemideSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 19
30-Day Fills 46.5
Days Supply 1,396
TN State Average Benchmarks
Peer Average Claims99.0
Peer Average 30-Day Fills189.1
Peer Average Days Supply5,205
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 80.8% less volume than the regional standard for practitioners inside TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $235.38 across this reporting matrix range.

Provider Avg Cost Per Claim

$12.39

State Avg Cost Per Claim

$5.99

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 benzoic-sulfonamide-furan. It is a diuretic with fast onset and short duration that is used for EDEMA and chronic RENAL INSUFFICIENCY.

Therapeutic Applications

Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease. This can lessen symptoms such as shortness of breath and swelling in your arms, legs, and abdomen. This drug is also used to treat high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Furosemide is a water pill (diuretic) that causes you to make more urine. This helps your body get rid of extra water and salt.

Lisinopril

Generic Formulation: LisinoprilSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 26
30-Day Fills 66.0
Days Supply 1,966
TN State Average Benchmarks
Peer Average Claims124.0
Peer Average 30-Day Fills299.0
Peer Average Days Supply8,802
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 79.0% less volume than the regional standard for practitioners inside TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $246.50 across this reporting matrix range.

Provider Avg Cost Per Claim

$9.48

State Avg Cost Per Claim

$6.78

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

One of the ANGIOTENSIN-CONVERTING ENZYME INHIBITORS (ACE inhibitors), orally active, that has been used in the treatment of hypertension and congestive heart failure.

Therapeutic Applications

Lisinopril is used to treat high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. It is also used to treat heart failure and to improve survival after a heart attack. Lisinopril belongs to a class of drugs known as ACE inhibitors. It works by relaxing blood vessels so blood can flow more easily.

Losartan Potassium

Generic Formulation: Losartan PotassiumSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 22
30-Day Fills 64.0
Days Supply 1,920
TN State Average Benchmarks
Peer Average Claims108.0
Peer Average 30-Day Fills266.8
Peer Average Days Supply7,901
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 79.6% less volume than the regional standard for practitioners inside TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $356.26 across this reporting matrix range.

Provider Avg Cost Per Claim

$16.19

State Avg Cost Per Claim

$11.78

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 antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II.

Therapeutic Applications

Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes. It is also used to lower the risk of strokes in patients with high blood pressure and an enlarged heart. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Losartan belongs to a class of drugs called angiotensin receptor blockers (ARBs). It works by relaxing blood vessels so that blood can flow more easily.

Metoprolol Succinate

Generic Formulation: Metoprolol SuccinateSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 13
30-Day Fills 39.0
Days Supply 1,170
TN State Average Benchmarks
Peer Average Claims88.0
Peer Average 30-Day Fills211.6
Peer Average Days Supply6,226
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 85.2% less volume than the regional standard for practitioners inside TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $358.34 across this reporting matrix range.

Provider Avg Cost Per Claim

$27.56

State Avg Cost Per Claim

$19.20

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 selective adrenergic beta-1 blocking agent that is commonly used to treat ANGINA PECTORIS; HYPERTENSION; and CARDIAC ARRHYTHMIAS.

Therapeutic Applications

This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This drug works by blocking the action of certain natural chemicals in your body (such as epinephrine) that affect the heart and blood vessels. This lowers heart rate, blood pressure, and strain on the heart.

Pentoxifylline

Generic Formulation: PentoxifyllineSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 21
30-Day Fills 35.0
Days Supply 974
TN State Average Benchmarks
Peer Average Claims23.0
Peer Average 30-Day Fills33.4
Peer Average Days Supply918
Standard Average Utilization

This provider's prescribing patterns for this therapeutic formulation sit directly in line with standard baseline averages across TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $733.44 across this reporting matrix range.

Provider Avg Cost Per Claim

$34.93

State Avg Cost Per Claim

$37.19

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 METHYLXANTHINE derivative that inhibits phosphodiesterase and affects blood rheology. It improves blood flow by increasing erythrocyte and leukocyte flexibility. It also inhibits platelet aggregation. Pentoxifylline modulates immunologic activity by stimulating cytokine production.

Therapeutic Applications

This medication is used to improve the symptoms of a certain blood flow problem in the legs/arms (intermittent claudication due to occlusive artery disease). Pentoxifylline can decrease the muscle aching/pain/cramps during exercise, including walking, that occur with intermittent claudication. Pentoxifylline belongs to a class of drugs known as hemorrheologic agents. It works by helping blood flow more easily through narrowed arteries. This increases the amount of oxygen that can be delivered by the blood when the muscles need more (such as during exercise) thereby increasing walking distance and duration.

Potassium Chloride

Generic Formulation: Potassium ChlorideSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 17
30-Day Fills 51.0
Days Supply 1,530
TN State Average Benchmarks
Peer Average Claims82.0
Peer Average 30-Day Fills155.8
Peer Average Days Supply4,337
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 79.3% less volume than the regional standard for practitioners inside TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $376.00 across this reporting matrix range.

Provider Avg Cost Per Claim

$22.12

State Avg Cost Per Claim

$26.21

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.

Clinical Summary

A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.

Therapeutic Applications

This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood. A normal level of potassium in the blood is important. Potassium helps your cells, kidneys, heart, muscles, and nerves work properly. Most people get enough potassium by eating a well-balanced diet. Some conditions that can lower your body's potassium level include severe prolonged diarrhea and vomiting, hormone problems such as hyperaldosteronism, or treatment with water pills/diuretics.

Sevelamer Carbonate

Generic Formulation: Sevelamer CarbonateSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 16
30-Day Fills 18.0
Days Supply 540
TN State Average Benchmarks
Peer Average Claims48.0
Peer Average 30-Day Fills71.2
Peer Average Days Supply1,918
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 66.7% less volume than the regional standard for practitioners inside TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $924.68 across this reporting matrix range.

Provider Avg Cost Per Claim

$57.79

State Avg Cost Per Claim

$301.87

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 polymeric amine that binds phosphate and is used to treat HYPERPHOSPHATEMIA in patients with kidney disease.

Therapeutic Applications

Sevelamer is used to lower high blood phosphorus (phosphate) levels in patients who are on dialysis due to severe kidney disease. Dialysis removes some phosphate from your blood, but it is difficult to remove enough to keep your phosphate levels balanced. Decreasing blood phosphate levels can help keep your bones strong, prevent unsafe buildup of minerals in your body, and possibly decrease the risk of heart disease and strokes that can result from high phosphate levels. Sevelamer works by holding onto phosphate from the diet so that it can pass out of your body.

Sodium Chloride

Generic Formulation: Sodium Chloride 0.45 %Specialty: Internal Medicine
Provider Metrics Summary
Total Claims 60
30-Day Fills 60.0
Days Supply 361
TN State Average Benchmarks
Peer Average Claims16.0
Peer Average 30-Day Fills16.0
Peer Average Days Supply101
Highly Elevated Utilization

This provider exhibits a high preference for this treatment path, registering a volume 275.0% higher than the standard regional baseline profile for TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $4,300.12 across this reporting matrix range.

Provider Avg Cost Per Claim

$71.67

State Avg Cost Per Claim

$124.59

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

Hypertonic sodium chloride solution. A solution having an osmotic pressure greater than that of physiologic salt solution (0.9 g NaCl in 100 ml purified water).

Therapeutic Applications

This product is used to treat dryness inside the nose (nasal passages). It helps add moisture inside the nose to dissolve and soften thick or crusty mucus. In babies and young children with stuffy noses who cannot blow their noses, using this product helps to make the mucus easier to remove with a nasal bulb syringe. This helps relieve stuffiness and makes breathing easier. This product contains a purified gentle salt solution (also called saline or sodium chloride solution). It does not contain any medication.

Tamsulosin Hcl

Generic Formulation: Tamsulosin HclSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 25
30-Day Fills 53.0
Days Supply 1,590
TN State Average Benchmarks
Peer Average Claims86.0
Peer Average 30-Day Fills193.3
Peer Average Days Supply5,637
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 70.9% less volume than the regional standard for practitioners inside TN. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $251.16 across this reporting matrix range.

Provider Avg Cost Per Claim

$10.05

State Avg Cost Per Claim

$18.15

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

Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH). It does not shrink the prostate, but it works by relaxing the muscles in the prostate and the bladder. This helps to relieve symptoms of BPH such as difficulty in beginning the flow of urine, weak stream, and the need to urinate often or urgently (including during the middle of the night). Tamsulosin belongs to a class of drugs known as alpha blockers. Do not use this medication to treat high blood pressure.

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 B. RENTZ DUNN JR. M.D. provides transparency into local medical care patterns within Nashville, TN.

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 **Nephrology** 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.