JOHN GUNN LEE MD
Prescription History 1487734521
Internal Medicine - Gastroenterology in Orange, CA

Active since October 16, 2006PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
101 THE CITY DRIVE SOUTH, UCI MEDICAL CENTER, ORANGE, CA 92868(714) 456-8978 Get Directions

NPPES record last updated: March 26, 2014. 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 JOHN GUNN LEE MD, an active Gastroenterology specialist practicing in Orange, CA. Our medical registry currently tracks 6 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 240 documented patient claims. Among these therapy options, the most frequently utilized medication is Ciprofloxacin Hcl, which accounts for 80 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.

6
Medications
240
Total Claims
285
30-Day Fills
Ciprofloxacin Hcl
Most Prescribed · 80 claims
View details
6 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by JOHN GUNN LEE 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 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 80 Medicare prescriptions for Ciprofloxacin Hcl, about 2.8 times the volume of the typical California prescriber of this medication (29). Medicare paid an average of $4.27 per fill, versus $7.51 statewide.

How often this provider prescribes it

This provider
80
CA average
29.0

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
$4.27
CA average
$7.51

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

80
30-Day Fills
standardized to 30-day supplies
398
Days of Medication
total across all patients in 2023

About Gavilyte-G: 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 76 Medicare prescriptions for Gavilyte-G, about 1.5 times the volume of the typical California prescriber of this medication (50). Medicare paid an average of $17.44 per fill, versus $14.69 statewide.

How often this provider prescribes it

This provider
76
CA average
50.0

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
$17.44
CA average
$14.69

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

76
30-Day Fills
standardized to 30-day supplies
82
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 30 Medicare prescriptions for Omeprazole, about a third of the volume of the typical California prescriber of this medication (80). Medicare paid an average of $28.13 per fill, versus $13.72 statewide.

How often this provider prescribes it

This provider
30
CA average
80.0

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
$28.13
CA average
$13.72

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

68
30-Day Fills
standardized to 30-day supplies
1,992
Days of Medication
total across all patients in 2023

About Peg 3350-Electrolyte: 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 21 Medicare prescriptions for Peg 3350-Electrolyte, about a third of the volume of the typical California prescriber of this medication (52). Medicare paid an average of $25.61 per fill, versus $20.91 statewide.

How often this provider prescribes it

This provider
21
CA average
52.0

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
$25.61
CA average
$20.91

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

21
30-Day Fills
standardized to 30-day supplies
25
Days of Medication
total across all patients in 2023

About Latanoprost: Latanoprost is used to treat high pressure inside the eye due to glaucoma (open angle type) or other eye diseases (such as ocular hypertension). Show more ▾

It is similar to a natural chemical in the body (prostaglandin) and works by regulating the flow of fluid within the eye which results in lower pressure. Lowering high pressure inside the eye helps to prevent blindness. A prostaglandin F analog used to treat OCULAR HYPERTENSION in patients with GLAUCOMA.

In 2023, this provider wrote 17 Medicare prescriptions for Latanoprost, about 11% of the volume of the typical California prescriber of this medication (159). Medicare paid an average of $10.81 per fill, versus $21.01 statewide.

How often this provider prescribes it

This provider
17
CA average
159.0

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
$10.81
CA average
$21.01

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

23.5
30-Day Fills
standardized to 30-day supplies
667
Days of Medication
total across all patients in 2023

About Sod Sulf-Potass Sulf-Mag Sulf: Sodium/potassium/magnesium sulfate solution is used to clean out the intestines before a certain bowel exam procedure (colonoscopy). Show more ▾

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

In 2023, this provider wrote 16 Medicare prescriptions for Sod Sulf-Potass Sulf-Mag Sulf, about 62% of the volume of the typical California prescriber of this medication (26). Medicare paid an average of $83.51 per fill, versus $83.42 statewide.

How often this provider prescribes it

This provider
16
CA average
26.0

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
$83.51
CA average
$83.42

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

16
30-Day Fills
standardized to 30-day supplies
21
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 JOHN GUNN LEE 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 Orange, 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.