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: July 26, 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 3 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 67 documented patient claims. Among these therapy options, the most frequently utilized medication is Paxlovid (Eua), which accounts for 41 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.

3
Medications
67
Total Claims
69
30-Day Fills
Paxlovid (Eua)
Most Prescribed · 41 claims
View details
3 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by ANNA SHENG 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
Paxlovid (Eua)Nirmatrelvir/Ritonavir41$10.10▼ below CA avg More than typical

About Paxlovid (Eua): The combination of nirmatrelvir tablets and ritonavir tablets is a product that the FDA is allowing to be given for emergency use to treat COVID-19. Show more ▾

The product is also approved to be used in Canada to treat COVID-19. It is used by people who have recently tested positive for coronavirus, have had mild to moderate symptoms for no more than 5 days and are not hospitalized. To receive this product you must also be at high risk for COVID-19 complications due to older age, obesity, or ongoing medical conditions (such as lung or heart disease or diabetes, among others). Talk to your doctor about the risks and benefits of treatment with nirmatrelvir and ritonavir. 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. More information about nirmatrelvir and ritonavir is available from the FDA Fact Sheet for Patients, Parents, and Caregivers for Emergency Use and from the Health Canada Patient Medication Information sheet. There is limited information about how safe and effective the combination of nirmatrelvir and ritonavir is for treating COVID-19. Study results show that nirmatrelvir and ritonavir may help people who have recently tested positive for coronavirus stay out of the hospital. This product is not for use by people who are hospitalized due to COVID-19. The information in this document reflects emerging data, which is evolving and subject to reassessment. Users should be aware of these considerations in their review of nirmatrelvir and ritonavir, and it is always the responsibility of treating practitioners to exercise independent judgement in making care decisions.

In 2023, this provider wrote 41 Medicare prescriptions for Paxlovid (Eua), about 1.7 times the volume of the typical California prescriber of this medication (24). Medicare paid an average of $10.10 per fill, versus $11.70 statewide.

How often this provider prescribes it

This provider
41
CA average
24.0

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
$10.10
CA average
$11.70

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

41
30-Day Fills
standardized to 30-day supplies
205
Days of Medication
total across all patients in 2023
Cephalexin14$7.50▼ below CA avg Less than 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 2023, this provider wrote 14 Medicare prescriptions for Cephalexin, about half the volume of the typical California prescriber of this medication (28). Medicare paid an average of $7.50 per fill, versus $9.52 statewide.

How often this provider prescribes it

This provider
14
CA average
28.0

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
$7.50
CA average
$9.52

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

14
30-Day Fills
standardized to 30-day supplies
97
Days of Medication
total across all patients in 2023
Zolpidem Tartrate12$7.54▼ below CA avg Less than typical

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 2023, this provider wrote 12 Medicare prescriptions for Zolpidem Tartrate, about a quarter of the volume of the typical California prescriber of this medication (45). Medicare paid an average of $7.54 per fill, versus $8.23 statewide.

How often this provider prescribes it

This provider
12
CA average
45.0

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
$7.54
CA average
$8.23

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

14
30-Day Fills
standardized to 30-day supplies
372
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 ANNA SHENG 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 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 volume among CA prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.