RAYMOND H. TU MD
Prescription History 1114003621
Internal Medicine - Gastroenterology in San Jose, CA

Active since October 27, 2006PECOS EnrolledAccepts Medicare Assignment
260 INTERNATIONAL CIR, SAN JOSE, CA 95119(408) 972-7000 Get Directions

NPPES record last updated: December 13, 2021. 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 RAYMOND H. TU MD, an active Gastroenterology specialist practicing in San Jose, CA. Our medical registry currently tracks 12 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 563 documented patient claims. Among these therapy options, the most frequently utilized medication is Gavilyte-C, which accounts for 224 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.

12
Medications
563
Total Claims
1,054
30-Day Fills
Gavilyte-C
Most Prescribed · 224 claims
View details
12 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by RAYMOND H. TU 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

About Gavilyte-C: PEG (polyethylene glycol) with electrolyte is used to clean out the intestines before certain bowel exam procedures such as colonoscopy or barium enema X-rays. Show more ▾

It is a laxative that works by drawing large amounts of water into the colon. This effect results in watery bowel movements. Clearing stool from the intestines helps your doctor to better examine the intestines during your procedure.

In 2023, this provider wrote 224 Medicare prescriptions for Gavilyte-C, about 2.8 times the volume of the typical California prescriber of this medication (81). Medicare paid an average of $20.94 per fill, versus $17.51 statewide.

How often this provider prescribes it

This provider
224
CA average
81.0

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
$20.94
CA average
$17.51

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

224
30-Day Fills
standardized to 30-day supplies
405
Days of Medication
total across all patients in 2023

About Omeprazole: Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers). Show more ▾

It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as heartburn, difficulty swallowing, and cough. This medication helps heal acid damage to the stomach and esophagus, helps prevent ulcers, and may help prevent cancer of the esophagus. Omeprazole belongs to a class of drugs known as proton pump inhibitors (PPIs). If you are self-treating with this medication, over-the-counter omeprazole products are used to treat frequent heartburn (occurring 2 or more days a week). Since it may take 1 to 4 days to have full effect, these products do not relieve heartburn right away. For over-the-counter products, carefully read the package instructions to make sure the product is right for you. Check the ingredients on the label even if you have used the product before. The manufacturer may have changed the ingredients. Also, products with similar brand names may contain different ingredients meant for different purposes. Taking the wrong product could harm you. A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.

In 2023, this provider wrote 115 Medicare prescriptions for Omeprazole, about 1.4 times the volume of the typical California prescriber of this medication (80). Medicare paid an average of $8.71 per fill, versus $13.72 statewide.

How often this provider prescribes it

This provider
115
CA average
80.0

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
$8.71
CA average
$13.72

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

312
30-Day Fills
standardized to 30-day supplies
9,328
Days of Medication
total across all patients in 2023

About Famotidine: Famotidine is used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed. Show more ▾

This medication is also used to treat certain stomach and throat (esophagus) problems (such as erosive esophagitis, gastroesophageal reflux disease-GERD, Zollinger-Ellison syndrome). It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as cough that doesn't go away, stomach pain, heartburn, and difficulty swallowing. Famotidine belongs to a class of drugs known as H2 blockers. This medication is also available without a prescription. It is used to prevent and treat heartburn and other symptoms caused by too much acid in the stomach (acid indigestion). If you are taking this medication for self-treatment, it is important to read the manufacturer's package instructions carefully so you know when to consult your doctor or pharmacist. A competitive histamine H2-receptor antagonist. Its main pharmacodynamic effect is the inhibition of gastric secretion.

In 2023, this provider wrote 42 Medicare prescriptions for Famotidine, about 82% of the volume of the typical California prescriber of this medication (51). Medicare paid an average of $16.67 per fill, versus $6.17 statewide.

How often this provider prescribes it

This provider
42
CA average
51.0

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
$16.67
CA average
$6.17

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

136.5
30-Day Fills
standardized to 30-day supplies
4,100
Days of Medication
total across all patients in 2023

About Peg-3350 And Electrolytes: PEG (polyethylene glycol) with electrolyte is used to clean out the intestines before certain bowel exam procedures such as colonoscopy or barium enema X-rays. Show more ▾

It is a laxative that works by drawing large amounts of water into the colon. This effect results in watery bowel movements. Clearing stool from the intestines helps your doctor to better examine the intestines during your procedure.

In 2023, this provider wrote 35 Medicare prescriptions for Peg-3350 And Electrolytes, about 81% of the volume of the typical California prescriber of this medication (43). Medicare paid an average of $25.39 per fill, versus $16.58 statewide.

How often this provider prescribes it

This provider
35
CA average
43.0

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
$25.39
CA average
$16.58

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

35
30-Day Fills
standardized to 30-day supplies
105
Days of Medication
total across all patients in 2023

About Pantoprazole Sodium: Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux). Show more ▾

It works by decreasing the amount of acid your stomach makes. This medication relieves symptoms such as heartburn, difficulty swallowing, and cough. It helps heal acid damage to the stomach and esophagus, helps prevent ulcers, and may help prevent cancer of the esophagus. Pantoprazole belongs to a class of drugs known as proton pump inhibitors (PPIs). 2-pyridinylmethylsulfinylbenzimidazole proton pump inhibitor that is used in the treatment of GASTROESOPHAGEAL REFLUX and PEPTIC ULCER.

In 2023, this provider wrote 29 Medicare prescriptions for Pantoprazole Sodium, about half the volume of the typical California prescriber of this medication (62). Medicare paid an average of $13.88 per fill, versus $16.94 statewide.

How often this provider prescribes it

This provider
29
CA average
62.0

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
$13.88
CA average
$16.94

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

69.2
30-Day Fills
standardized to 30-day supplies
2,075
Days of Medication
total across all patients in 2023

About Sucralfate: This medication is used to treat ulcers in the intestines. Show more ▾

Sucralfate forms a coating over ulcers, protecting the area from further injury. This helps ulcers heal more quickly. A basic aluminum complex of sulfated sucrose.

In 2023, this provider wrote 27 Medicare prescriptions for Sucralfate, about the same volume as the typical California prescriber of this medication (27). Medicare paid an average of $69.42 per fill, versus $71.55 statewide.

How often this provider prescribes it

This provider
27
CA average
27.0

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
$69.42
CA average
$71.55

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

54
30-Day Fills
standardized to 30-day supplies
1,610
Days of Medication
total across all patients in 2023

About Lialda: This medication is used to treat a certain bowel disease (ulcerative colitis). Show more ▾

It helps to reduce symptoms of ulcerative colitis such as diarrhea, rectal bleeding, and stomach pain. Mesalamine belongs to a class of drugs known as aminosalicylates. It works by decreasing swelling in the colon. An anti-inflammatory agent, structurally related to the SALICYLATES, which is active in INFLAMMATORY BOWEL DISEASE. It is considered to be the active moiety of SULPHASALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed)

In 2023, this provider wrote 24 Medicare prescriptions for Lialda, about 86% of the volume of the typical California prescriber of this medication (28). Medicare paid an average of $684.84 per fill, versus $576.27 statewide.

How often this provider prescribes it

This provider
24
CA average
28.0

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
$684.84
CA average
$576.27

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

74
30-Day Fills
standardized to 30-day supplies
2,220
Days of Medication
total across all patients in 2023

About Ursodiol: Ursodiol is used to dissolve certain types of gallstones, to prevent gallstones from forming in obese patients who are losing weight rapidly, and to treat a certain type of liver disease (primary biliary cholangitis). Show more ▾

Ursodiol is a bile acid. A penicillin derivative commonly used in the form of its sodium or potassium salts in the treatment of a variety of infections. It is effective against most gram-positive bacteria and against gram-negative cocci. It has also been used as an experimental convulsant because of its actions on GAMMA-AMINOBUTYRIC ACID mediated synaptic transmission.

In 2023, this provider wrote 15 Medicare prescriptions for Ursodiol, about half the volume of the typical California prescriber of this medication (29). Medicare paid an average of $289.71 per fill, versus $244.56 statewide.

How often this provider prescribes it

This provider
15
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
$289.71
CA average
$244.56

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

49
30-Day Fills
standardized to 30-day supplies
1,470
Days of Medication
total across all patients in 2023

About Cholestyramine: Cholestyramine is used along with a proper diet to lower cholesterol in the blood. Show more ▾

Lowering cholesterol helps decrease the risk for strokes and heart attacks. In addition to a proper diet (such as a low-cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Consult your doctor for more details. Cholestyramine may also be used to treat itching in people with too much bile acid caused by a certain type of liver/bile duct disease (partial biliary obstruction). This medication is known as a bile acid-binding resin. It works by removing bile acid from the body. In people with high cholesterol, this causes the liver to make more bile acid by using cholesterol in the blood. This helps to lower the cholesterol levels. A strongly basic anion exchange resin whose main constituent is polystyrene trimethylbenzylammonium Cl(-) anion.

In 2023, this provider wrote 14 Medicare prescriptions for Cholestyramine, about 74% of the volume of the typical California prescriber of this medication (19). Medicare paid an average of $47.81 per fill, versus $101.15 statewide.

How often this provider prescribes it

This provider
14
CA average
19.0

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
$47.81
CA average
$101.15

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

21.2
30-Day Fills
standardized to 30-day supplies
546
Days of Medication
total across all patients in 2023

About Lansoprazole: Lansoprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers). Show more ▾

It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as heartburn, difficulty swallowing, and cough. This medication helps heal acid damage to the stomach and esophagus, helps prevent ulcers, and may help prevent cancer of the esophagus. Lansoprazole belongs to a class of drugs known as proton pump inhibitors (PPIs). If you are self-treating with this medication, over-the-counter lansoprazole products are used to treat frequent heartburn (occurring 2 or more days a week). Since it may take 1 to 4 days to have full effect, these products do not relieve heartburn right away. For over-the-counter products, carefully read the package instructions to make sure the product is right for you. Check the ingredients on the label even if you have used the product before. The manufacturer may have changed the ingredients. Also, products with similar brand names may contain different ingredients meant for different purposes. Taking the wrong product could harm you. Lansoprazole is not recommended for use in children younger than 1 year due to an increased risk of serious side effects. Ask the doctor or pharmacist for details. A 2,2,2-trifluoroethoxypyridyl derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS. Lansoprazole is a racemic mixture of (R)- and (S)-isomers.

In 2023, this provider wrote 14 Medicare prescriptions for Lansoprazole, about half the volume of the typical California prescriber of this medication (25). Medicare paid an average of $74.62 per fill, versus $82.04 statewide.

How often this provider prescribes it

This provider
14
CA average
25.0

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
$74.62
CA average
$82.04

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

41.7
30-Day Fills
standardized to 30-day supplies
1,250
Days of Medication
total across all patients in 2023

About Lubiprostone: This medication is used to treat certain types of constipation (chronic idiopathic constipation, irritable bowel syndrome with constipation). Show more ▾

Chronic idiopathic constipation has an unknown cause and is not due to diet, other diseases, or drugs. Lubiprostone is also used to treat constipation caused by opioid medications in people with ongoing pain due to medical conditions other than cancer. This medication may improve symptoms such as bloating and abdominal discomfort, improve stool texture, lessen the need to strain, and decrease the feeling of not completely relieving oneself. Lubiprostone belongs to a class of drugs known as chloride channel activators. It works by increasing the amount of fluid within your intestines, making the passage of stool easier. Member of a bicyclic fatty acid class of compounds derived from PROSTAGLANDIN E1 involved in chloride channel gating.

In 2023, this provider wrote 13 Medicare prescriptions for Lubiprostone, about 62% of the volume of the typical California prescriber of this medication (21). Medicare paid an average of $242.27 per fill, versus $349.43 statewide.

How often this provider prescribes it

This provider
13
CA average
21.0

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
$242.27
CA average
$349.43

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

26
30-Day Fills
standardized to 30-day supplies
780
Days of Medication
total across all patients in 2023

About Lactulose: This medication is a laxative used to treat constipation. Show more ▾

It may help to increase the number of bowel movements per day and the number of days you have a bowel movement. Lactulose is a colonic acidifier that works by increasing stool water content and softening the stool. It is a man-made sugar solution. A synthetic disaccharide used in the treatment of constipation and hepatic encephalopathy. It has also been used in the diagnosis of gastrointestinal disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p887)

In 2023, this provider wrote 11 Medicare prescriptions for Lactulose, about a third of the volume of the typical California prescriber of this medication (28). Medicare paid an average of $29.38 per fill, versus $87.63 statewide.

How often this provider prescribes it

This provider
11
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
$29.38
CA average
$87.63

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

11.6
30-Day Fills
standardized to 30-day supplies
229
Days of Medication
total across all patients in 2023
No medications match the current filters.
= the 5 medications this provider prescribes most. 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 RAYMOND H. TU 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 Gastroenterology prescribing approach at this San Jose, 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.