DAVID MANFOOK CHAN M.D.
Prescription History 1982944005
Internal Medicine in Loma Linda, CA

NPI Status: Active since February 26, 2013

Contact Information

11815 KNIGHTSBRIDGE PL
LOMA LINDA, CA
ZIP 92354
Phone: (909) 641-6882

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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 DAVID MANFOOK CHAN M.D., an active Internal Medicine specialist practicing in Loma Linda, CA. Our medical registry currently tracks 2 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 22 documented patient claims. Among these therapy options, the most frequently utilized medication is Losartan Potassium, which accounts for 11 claims alone.

Medication Index

No matching medications currently found on file.

Losartan Potassium

Generic Formulation: Losartan PotassiumSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 11
30-Day Fills 11.0
Days Supply 330
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 90.5% 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 $100.53 across this reporting matrix range.

Provider Avg Cost Per Claim

$9.14

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 Er

Generic Formulation: Metformin HclSpecialty: Internal Medicine
Provider Metrics Summary
Total Claims 11
30-Day Fills 11.0
Days Supply 330
CA State Average Benchmarks
Peer Average Claims48.0
Peer Average 30-Day Fills132.1
Peer Average Days Supply3,949
Highly Conservative Utilization

This provider demonstrates a highly selective approach to this formula, recording 77.1% 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 $51.65 across this reporting matrix range.

Provider Avg Cost Per Claim

$4.70

State Avg Cost Per Claim

$11.67

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.

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 DAVID MANFOOK CHAN M.D. provides transparency into local medical care patterns within Loma Linda, 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.