LAUREN JEFFERIS MD
Prescription History 1346354776
Internal Medicine in San Marcos, CA

Active since August 19, 2006
150 VALPREDA RD, SAN MARCOS, CA 92069(760) 736-6700(760) 736-6782 Get Directions

NPPES record last updated: February 27, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for LAUREN JEFFERIS MD, an active Internal Medicine specialist practicing in San Marcos, CA. Our medical registry currently tracks 1 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 12 documented patient claims. Among these therapy options, the most frequently utilized medication is Amlodipine Besylate, which accounts for 12 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
12
Total Claims
36
30-Day Fills
Amlodipine Besylate
Most Prescribed · 12 claims
View details
1 medication · 2023 Medicare Part D
Medicare Part D medications prescribed by LAUREN JEFFERIS MD in 2023, with prescription volumes, average cost per fill, and CA state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other CA PrescribersVs. CA Avg
Amlodipine Besylate12$14.00 Less than typical

About Amlodipine Besylate: Amlodipine is used with or without other medications to treat high blood pressure. Show more ▾

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

In 2023, this provider wrote 12 Medicare prescriptions for Amlodipine Besylate, about 9% of the volume of the typical California prescriber of this medication (138). Medicare paid an average of $14.00 per fill, versus $9.16 statewide.

How often this provider prescribes it

This provider
12
CA average
138.0

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

What Medicare paid per fill

This provider
$14.00
CA average
$9.16

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

36
30-Day Fills
standardized to 30-day supplies
1,080
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 CA prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the CA average cost per fill.

About this data. The prescription history for LAUREN JEFFERIS 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 Internal Medicine prescribing approach at this San Marcos, CA 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 CA prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.