ANNA SHENG
Prescription History 1356825921
Nurse Practitioner - Adult Health in Los Altos, CA

Active since September 19, 2018PECOS EnrolledAccepts Medicare Assignment
370 DISTEL CIR, LOS ALTOS, CA 94022(650) 254-5200 Get Directions

NPPES record last updated: June 3, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 3, 2020, Feb 20, 2020, Sep 19, 2018 (3 updates tracked since 2018).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for ANNA SHENG, an active Adult Health specialist practicing in Los Altos, CA. Our medical registry currently tracks 4 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 92 documented patient claims. Among these therapy options, the most frequently utilized medication is Paxlovid, which accounts for 36 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.

4
Medications
92
Total Claims
94
30-Day Fills
Paxlovid
Most Prescribed · 36 claims
View details
4 medications · 2024 Medicare Part D
Medicare Part D medications prescribed by ANNA SHENG 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

About Paxlovid: This combination of nirmatrelvir and ritonavir is used to treat coronavirus disease (COVID-19) in people who have mild to moderate symptoms and have a high risk for COVID-19 complications. Show more ▾

It helps people who have COVID-19 to stay out of the hospital. It is not for use by people who are hospitalized due to COVID-19. Nirmatrelvir is a SARS-CoV-2 main protease inhibitor. It works by preventing the growth of the virus that causes COVID-19. Ritonavir increases ("boosts") the levels of nirmatrelvir. This helps nirmatrelvir work better. This medication works by stopping the coronavirus from growing. It cannot be used to prevent COVID-19.

In 2024, this provider wrote 36 Medicare prescriptions for Paxlovid, about 1.5 times the volume of the typical California prescriber of this medication (24.2). Medicare paid an average of $115.54 per fill, versus $42.82 statewide.

How often this provider prescribes it

This provider
36
CA average
24.2

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

What Medicare paid per fill

This provider
$115.54
CA average
$42.82

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

36
30-Day Fills
standardized to 30-day supplies
180
Days of Medication
total across all patients in 2024

About Zolpidem Tartrate: Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults. Show more ▾

If you have trouble falling asleep, it helps you fall asleep faster, so you can get a better night's rest. Zolpidem belongs to a class of drugs called sedative-hypnotics. It acts on your brain to produce a calming effect. An imidazopyridine derivative and short-acting GABA-A receptor agonist that is used for the treatment of INSOMNIA.

In 2024, this provider wrote 25 Medicare prescriptions for Zolpidem Tartrate, about half the volume of the typical California prescriber of this medication (44.7). Medicare paid an average of $5.70 per fill, versus $6.02 statewide.

How often this provider prescribes it

This provider
25
CA average
44.7

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
$5.70
CA average
$6.02

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

27
30-Day Fills
standardized to 30-day supplies
772
Days of Medication
total across all patients in 2024

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 17 Medicare prescriptions for Cephalexin, about half the volume of the typical California prescriber of this medication (29.7). Medicare paid an average of $6.32 per fill, versus $7.62 statewide.

How often this provider prescribes it

This provider
17
CA average
29.7

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
$6.32
CA average
$7.62

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

17
30-Day Fills
standardized to 30-day supplies
122
Days of Medication
total across all patients in 2024

About Amoxicillin-Clavulanate Potass: Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections. Show more ▾

It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections.

In 2024, this provider wrote 14 Medicare prescriptions for Amoxicillin-Clavulanate Potass, about half the volume of the typical California prescriber of this medication (25.6). Medicare paid an average of $6.84 per fill, versus $9.18 statewide.

How often this provider prescribes it

This provider
14
CA average
25.6

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
$6.84
CA average
$9.18

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

14
30-Day Fills
standardized to 30-day supplies
104
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 ANNA SHENG 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 Adult Health prescribing approach at this Los Altos, 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.