TOBIAS XIAO DONG MD, PHD
Prescription History 1639638869
Internal Medicine in Stanford, CA

Active since March 18, 2019PECOS EnrolledAccepts Medicare Assignment
76.5/100
CMS Quality Rating
300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions

NPPES record last updated: April 18, 2024. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Apr 18, 2024, Jul 19, 2022, Mar 18, 2019 (3 updates tracked since 2019).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for TOBIAS XIAO DONG MD, PHD, an active Internal Medicine specialist practicing in Stanford, CA. Our medical registry currently tracks 5 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 63 documented patient claims. Among these therapy options, the most frequently utilized medication is Oxycodone Hcl, which accounts for 15 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.

5
Medications
63
Total Claims
63
30-Day Fills
Oxycodone Hcl
Most Prescribed · 15 claims
View details
5 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by TOBIAS XIAO DONG MD, PHD 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

About Oxycodone Hcl: This medication is used to help relieve moderate to severe pain. Show more ▾

Oxycodone belongs to a class of drugs known as opioid analgesics. It works in the brain to change how your body feels and responds to pain. A semisynthetic derivative of CODEINE.

In 2023, this provider wrote 15 Medicare prescriptions for Oxycodone Hcl, about a third of the volume of the typical California prescriber of this medication (42). Medicare paid an average of $10.24 per fill, versus $25.37 statewide.

How often this provider prescribes it

This provider
15
CA average
42.0

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
$10.24
CA average
$25.37

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

15
30-Day Fills
standardized to 30-day supplies
115
Days of Medication
total across all patients in 2023

About Ondansetron Odt: This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy. Show more ▾

It is also used to prevent and treat nausea and vomiting after surgery. Ondansetron works by blocking one of the body's natural substances (serotonin) that causes vomiting. A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties.

In 2023, this provider wrote 13 Medicare prescriptions for Ondansetron Odt, about half the volume of the typical California prescriber of this medication (22). Medicare paid an average of $23.42 per fill, versus $21.79 statewide.

How often this provider prescribes it

This provider
13
CA average
22.0

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
$23.42
CA average
$21.79

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

13
30-Day Fills
standardized to 30-day supplies
154
Days of Medication
total across all patients in 2023

About Duloxetine Hcl: Duloxetine is used to treat depression and anxiety. Show more ▾

In addition, duloxetine is used to help relieve nerve pain (peripheral neuropathy) in people with diabetes or ongoing pain due to medical conditions such as arthritis, chronic back pain, or fibromyalgia (a condition that causes widespread pain). Duloxetine may improve your mood, sleep, appetite, and energy level, and decrease nervousness. It can also decrease pain due to certain medical conditions. Duloxetine is known as a serotonin-norepinephrine reuptake inhibitor (SNRI). This medication works by helping to restore the balance of certain natural substances (serotonin and norepinephrine) in the brain. A thiophene derivative and selective NEUROTRANSMITTER UPTAKE INHIBITOR for SEROTONIN and NORADRENALINE (SNRI). It is an ANTIDEPRESSIVE AGENT and ANXIOLYTIC, and is also used for the treatment of pain in patients with DIABETES MELLITUS and FIBROMYALGIA.

In 2023, this provider wrote 13 Medicare prescriptions for Duloxetine Hcl, about a third of the volume of the typical California prescriber of this medication (40). Medicare paid an average of $12.64 per fill, versus $50.41 statewide.

How often this provider prescribes it

This provider
13
CA average
40.0

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
$12.64
CA average
$50.41

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

13
30-Day Fills
standardized to 30-day supplies
390
Days of Medication
total across all patients in 2023

About Ciprofloxacin Hcl: This medication is used to treat eye infections. Show more ▾

Ciprofloxacin belongs to a class of drugs called quinolone antibiotics. It works by stopping the growth of bacteria. This medication treats only bacterial eye infections. It will not work for other types of eye infections. Unnecessary use or overuse of any antibiotic can lead to its decreased effectiveness. A broad-spectrum antimicrobial carboxyfluoroquinoline.

In 2023, this provider wrote 11 Medicare prescriptions for Ciprofloxacin Hcl, about a third of the volume of the typical California prescriber of this medication (29). Medicare paid an average of $6.23 per fill, versus $7.51 statewide.

How often this provider prescribes it

This provider
11
CA average
29.0

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
$6.23
CA average
$7.51

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

11.4
30-Day Fills
standardized to 30-day supplies
88
Days of Medication
total across all patients in 2023

About Vemlidy: Tenofovir alafenamide is used to treat chronic hepatitis B infection, a viral infection of the liver. Show more ▾

It works by stopping or slowing the growth of the virus. Chronic hepatitis infection can lead to serious liver damage (cirrhosis) and liver cancer. It is not known if tenofovir alafenamide can cure hepatitis B or can prevent you from passing the virus to others. Practice safer sex (such as the use of latex condoms) to lower the risk of passing the virus to others.

In 2023, this provider wrote 11 Medicare prescriptions for Vemlidy, about a quarter of the volume of the typical California prescriber of this medication (49). Medicare paid an average of $1,484.44 per fill, versus $1,448.60 statewide.

How often this provider prescribes it

This provider
11
CA average
49.0

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
$1,484.44
CA average
$1,448.60

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

11
30-Day Fills
standardized to 30-day supplies
330
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 TOBIAS XIAO DONG MD, PHD 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 Stanford, 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.