DR. CATHERINE ANNE GRELLET M.D.
Prescription History 1053418939
Internal Medicine in Los Gatos, CA

NPI Status: Active since September 20, 2006

Contact Information

15251 NATIONAL AVE
SUITE 104
LOS GATOS, CA
ZIP 95032
Phone: (408) 358-7360
Fax: (408) 358-7357

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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 DR. CATHERINE ANNE GRELLET M.D., an active Internal Medicine specialist practicing in Los Gatos, CA. Our medical registry currently tracks 8 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 149 documented patient claims. Among these therapy options, the most frequently utilized medication is Atorvastatin Calcium, which accounts for 27 claims alone.


Atorvastatin Calcium

Generic Formulation: Atorvastatin CalciumSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 27
30-Day Fills 77.0
Days Supply 2,310
CA State Average Benchmarks
Peer Average Claims194.0
Peer Average 30-Day Fills503.5
Peer Average Days Supply14,987
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 86.1% less volume than the regional standard for practitioners inside CA. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $326.51 across this reporting matrix range.

Provider Avg Cost Per Claim

$12.09

State Avg Cost Per Claim

$14.16

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 pyrrole and heptanoic acid derivative, HYDROXYMETHYLGLUTARYL-COA REDUCTASE INHIBITOR (statin), and ANTICHOLESTEREMIC AGENT that is used to reduce serum levels of LDL-CHOLESTEROL; APOLIPOPROTEIN B; and TRIGLYCERIDES. It is used to increase serum levels of HDL-CHOLESTEROL in the treatment of HYPERLIPIDEMIAS, and for the prevention of CARDIOVASCULAR DISEASES in patients with multiple risk factors.

Therapeutic Applications

Atorvastatin is used along with a proper diet to help lower bad cholesterol and fats (such as LDL, triglycerides) and raise good cholesterol (HDL) in the blood. It belongs to a group of drugs known as statins. It works by reducing the amount of cholesterol made by the liver. Lowering bad cholesterol and triglycerides and raising good cholesterol decreases the risk of heart disease and helps prevent strokes and heart attacks. In addition to eating a proper diet (such as a low-cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Consult your doctor for more details.

Bupropion Xl

Generic Formulation: Bupropion HclSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 14
30-Day Fills 38.0
Days Supply 1,140
CA State Average Benchmarks
Peer Average Claims35.0
Peer Average 30-Day Fills67.9
Peer Average Days Supply2,016
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 60.0% less volume than the regional standard for practitioners inside CA. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $574.23 across this reporting matrix range.

Provider Avg Cost Per Claim

$41.02

State Avg Cost Per Claim

$40.33

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

Bupropion is used to treat depression. It can improve your mood and feelings of well-being. It may work by helping to restore the balance of certain natural chemicals (neurotransmitters) in your brain.

Duloxetine Hcl

Generic Formulation: Duloxetine HclSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 12
30-Day Fills 32.0
Days Supply 960
CA State Average Benchmarks
Peer Average Claims40.0
Peer Average 30-Day Fills75.2
Peer Average Days Supply2,218
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 70.0% less volume than the regional standard for practitioners inside CA. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $489.23 across this reporting matrix range.

Provider Avg Cost Per Claim

$40.77

State Avg Cost Per Claim

$50.41

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.

Clinical Summary

A thiophene derivative and selective NEUROTRANSMITTER UPTAKE INHIBITOR for SEROTONIN and NORADRENALINE (SNRI). It is an ANTIDEPRESSIVE AGENT and ANXIOLYTIC, and is also used for the treatment of pain in patients with DIABETES MELLITUS and FIBROMYALGIA.

Therapeutic Applications

Duloxetine is used to treat depression and anxiety. In addition, duloxetine is used to help relieve nerve pain (peripheral neuropathy) in people with diabetes or ongoing pain due to medical conditions such as arthritis, chronic back pain, or fibromyalgia (a condition that causes widespread pain). Duloxetine may improve your mood, sleep, appetite, and energy level, and decrease nervousness. It can also decrease pain due to certain medical conditions. Duloxetine is known as a serotonin-norepinephrine reuptake inhibitor (SNRI). This medication works by helping to restore the balance of certain natural substances (serotonin and norepinephrine) in the brain.

Levothyroxine Sodium

Generic Formulation: Levothyroxine SodiumSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 24
30-Day Fills 69.2
Days Supply 2,077
CA State Average Benchmarks
Peer Average Claims124.0
Peer Average 30-Day Fills305.1
Peer Average Days Supply9,029
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 80.6% less volume than the regional standard for practitioners inside CA. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $379.56 across this reporting matrix range.

Provider Avg Cost Per Claim

$15.82

State Avg Cost Per Claim

$19.74

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

The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.

Therapeutic Applications

Levothyroxine is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Having enough thyroid hormone is important for maintaining normal mental and physical activity. In children, having enough thyroid hormone is important for normal mental and physical development. This medication is also used to treat other types of thyroid disorders (such as thyroid cancer). This medication should not be used to treat infertility unless it is caused by low thyroid hormone levels.

Losartan Potassium

Generic Formulation: Losartan PotassiumSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 22
30-Day Fills 62.0
Days Supply 1,860
CA State Average Benchmarks
Peer Average Claims116.0
Peer Average 30-Day Fills302.4
Peer Average Days Supply9,023
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 81.0% less volume than the regional standard for practitioners inside CA. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $260.78 across this reporting matrix range.

Provider Avg Cost Per Claim

$11.85

State Avg Cost Per Claim

$13.35

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.

Metformin Hcl

Generic Formulation: Metformin HclSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 17
30-Day Fills 48.2
Days Supply 1,427
CA State Average Benchmarks
Peer Average Claims101.0
Peer Average 30-Day Fills250.5
Peer Average Days Supply7,453
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 83.2% less volume than the regional standard for practitioners inside CA. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $113.66 across this reporting matrix range.

Provider Avg Cost Per Claim

$6.69

State Avg Cost Per Claim

$10.07

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 biguanide hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. Metformin improves glycemic control by improving insulin sensitivity and decreasing intestinal absorption of glucose. (From Martindale, The Extra Pharmacopoeia, 30th ed, p289)

Therapeutic Applications

Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar. It is used in patients with type 2 diabetes. Controlling high blood sugar helps prevent kidney damage, blindness, nerve problems, loss of limbs, and sexual function problems. Proper control of diabetes may also lessen your risk of a heart attack or stroke. Metformin works by helping to restore your body's proper response to the insulin you naturally produce. It also decreases the amount of sugar that your liver makes and that your stomach/intestines absorb.

Ozempic

Generic Formulation: SemaglutideSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 15
30-Day Fills 15.0
Days Supply 436
CA State Average Benchmarks
Peer Average Claims43.0
Peer Average 30-Day Fills62.6
Peer Average Days Supply1,823
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 65.1% less volume than the regional standard for practitioners inside CA. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $14,412.72 across this reporting matrix range.

Provider Avg Cost Per Claim

$960.85

State Avg Cost Per Claim

$1,314.83

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

Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes. Controlling high blood sugar helps prevent kidney damage, blindness, nerve problems, loss of limbs, and sexual function problems. Semaglutide is also used in people with type 2 diabetes and heart disease to lower the risk of death from heart attack or stroke. Semaglutide is similar to a natural hormone in your body (incretin). It works by causing insulin release in response to high blood sugar (such as after a meal) and decreasing the amount of sugar your liver makes. If you use insulin, semaglutide is not a substitute for insulin treatment.

Rosuvastatin Calcium

Generic Formulation: Rosuvastatin CalciumSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 18
30-Day Fills 54.0
Days Supply 1,620
CA State Average Benchmarks
Peer Average Claims86.0
Peer Average 30-Day Fills222.9
Peer Average Days Supply6,667
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 79.1% less volume than the regional standard for practitioners inside CA. Gross expenditures recorded under Medicare program tracking definitions for this provider calculate to an estimated aggregate of $228.97 across this reporting matrix range.

Provider Avg Cost Per Claim

$12.72

State Avg Cost Per Claim

$35.52

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 HYDROXYMETHYLGLUTARYL-COA-REDUCTASE INHIBITOR, or statin, that reduces the plasma concentrations of LDL-CHOLESTEROL; APOLIPOPROTEIN B, and TRIGLYCERIDES while increasing HDL-CHOLESTEROL levels in patients with HYPERCHOLESTEROLEMIA and those at risk for CARDIOVASCULAR DISEASES.

Therapeutic Applications

Rosuvastatin is used along with a proper diet to help lower bad cholesterol and fats (such as LDL, triglycerides) and raise good cholesterol (HDL) in the blood. It belongs to a group of drugs known as statins. It works by reducing the amount of cholesterol made by the liver. Lowering bad cholesterol and triglycerides and raising good cholesterol decreases the risk of heart disease and helps to prevent strokes and heart attacks. In addition to eating a proper diet (such as a low cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Talk with your doctor for more details.

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 DR. CATHERINE ANNE GRELLET M.D. provides transparency into local medical care patterns within Los Gatos, CA.

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 **Internal Medicine** 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.