Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JASON WYETH KOOB M.D.
Prescription History 1093943821
Emergency Medicine in San Ramon, CA

Active since July 01, 2009PECOS EnrolledAccepts Medicare Assignment
6001 NORRIS CANYON RD, SAN RAMON, CA 94583(925) 275-9200(925) 308-8944 Get Directions

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 6, 2026, Jan 21, 2016 (2 updates tracked since 2016).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DR. JASON WYETH KOOB M.D., an active Emergency Medicine specialist practicing in San Ramon, CA. Our medical registry currently tracks 2 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 45 documented patient claims. Among these therapy options, the most frequently utilized medication is Cephalexin, which accounts for 24 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.

2
Medications
45
Total Claims
45
30-Day Fills
Cephalexin
Most Prescribed · 24 claims
View details
2 medications · 2024 Medicare Part D
Medicare Part D medications prescribed by DR. JASON WYETH KOOB M.D. in 2024, with prescription volumes, average cost per fill, and CA state comparisons
Medication Prescriptions (2024)Rx (2024) Avg Cost per FillCost / Fill Vs. Other CA PrescribersVs. CA Avg
Cephalexin24$6.69▼ below CA avg≈ Typical

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

This medication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria. This medication will not work for viral infections (such as common cold, flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness. A semisynthetic cephalosporin antibiotic with antimicrobial activity similar to that of CEPHALORIDINE or CEPHALOTHIN, but somewhat less potent. It is effective against both gram-positive and gram-negative organisms.

In 2024, this provider wrote 24 Medicare prescriptions for Cephalexin, about 81% of the volume of the typical California prescriber of this medication (29.7). Medicare paid an average of $6.69 per fill, versus $7.62 statewide.

How often this provider prescribes it

This provider
24
CA average
29.7

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

What Medicare paid per fill

This provider
$6.69
CA average
$7.62

This provider's average cost per fill is below the CA average for this medication.

24
30-Day Fills
standardized to 30-day supplies
192
Days of Medication
total across all patients in 2024
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen21$2.86▼ below CA avg▼ Less than typical

About Hydrocodone-Acetaminophen: This combination medication is used to relieve moderate to severe pain. Show more ▾

It contains an opioid pain reliever (hydrocodone) and a non-opioid pain reliever (acetaminophen). Hydrocodone works in the brain to change how your body feels and responds to pain. Acetaminophen can also reduce a fever.

In 2024, this provider wrote 21 Medicare prescriptions for Hydrocodone-Acetaminophen, about a quarter of the volume of the typical California prescriber of this medication (76.2). Medicare paid an average of $2.86 per fill, versus $21.39 statewide.

How often this provider prescribes it

This provider
21
CA average
76.2

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
$2.86
CA average
$21.39

This provider's average cost per fill is below the CA average for this medication.

21
30-Day Fills
standardized to 30-day supplies
58
Days of Medication
total across all patients in 2024
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 DR. JASON WYETH KOOB M.D. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, 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 Emergency Medicine prescribing approach at this San Ramon, 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 among CA prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.

About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.