Dr. John Lee, MD
What this data tells you about Dr. Lee
Dr. John Lee is a gastroenterology specialist in Orange, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Lee performed 1,596 Medicare services across 1,456 unique beneficiaries.
Between the years covered by Open Payments, Dr. Lee received a total of $41,024 from 9 pharmaceutical and/or device companies across 20 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in gastroenterology. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Lee is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Endoscopic ultrasound of esophagus, stomach, or upper small bowel An ultrasound exam of the esophagus, stomach, and/or upper small bowel performed using a flexible endoscope. |
373 | $152 | $1,207 |
| Upper GI endoscopy with biopsy A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities. |
235 | $49 | $681 |
| Colon polyp removal with endoscopic snare This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination. |
153 | $178 | $1,217 |
| Endoscopic ultrasound-guided needle biopsy A procedure using an ultrasound-equipped endoscope to guide a needle for tissue sampling of the esophagus, stomach, or upper small bowel. |
135 | $201 | $1,679 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
75 | $111 | $597 |
| Pancreatic or bile duct stent insertion A flexible endoscope is used to place a stent into the pancreatic or bile duct to keep it open. |
59 | $340 | $2,090 |
| Endoscopic removal of bile or pancreatic duct stone A flexible endoscope is used to remove stones or debris from the bile or pancreatic ducts. |
54 | $81 | $2,036 |
| Stent replacement in pancreatic or bile duct A flexible endoscope is used to remove an existing stent and insert a new one into the pancreatic or bile duct. |
49 | $391 | $2,176 |
| Removal of large bowel tissue using flexible endoscope A procedure to remove tissue from the large intestine using a flexible tube with a camera. The endoscope allows the provider to access and excise the tissue directly. |
45 | $276 | $1,498 |
| Balloon dilation of esophagus, stomach, or upper small bowel, less than 3.0 cm A procedure using a flexible endoscope to widen a narrowed section of the esophagus, stomach, or upper small bowel with a balloon that is less than 3.0 cm in length. |
40 | $98 | $696 |
| Colonoscopy with biopsy A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease. |
38 | $59 | $1,028 |
| Upper endoscopy (EGD) A diagnostic exam of the esophagus, stomach, and upper small bowel using a flexible endoscope. |
35 | $93 | $578 |
| Endoscopic removal of esophagus, stomach, or small bowel polyps This procedure uses an endoscope and a mechanical snare to remove polyps or growths from the esophagus, stomach, or upper small bowel. |
32 | $100 | $886 |
| Balloon dilation of pancreatic or bile duct A procedure using a flexible endoscope to widen a narrowed pancreatic or bile duct with a balloon. This helps restore the flow of digestive fluids. |
28 | $223 | $1,710 |
| Endoscopic removal of pancreatic or bile duct stent A flexible endoscope is used to remove a stent from the pancreatic or bile duct. This procedure accesses the ducts internally to extract the device. |
25 | $242 | $1,701 |
| Endoscopic ligation of esophageal or gastric varices A procedure using a flexible endoscope to tie off dilated veins in the stomach or esophagus. |
22 | $197 | $1,174 |
| Endoscopic removal of esophagus, stomach, or bowel lining A procedure using a flexible endoscope to remove the tissue lining of the esophagus, stomach, and/or upper small bowel. |
21 | $215 | $1,223 |
| Esophageal or gastric stent placement A flexible endoscope is used to place a stent in the esophagus, stomach, or upper small bowel to keep the passage open. |
21 | $139 | $986 |
| Esophageal sensation study by balloon distension This procedure evaluates how the esophagus senses pressure or stretching by inflating a small balloon within the esophagus. |
18 | $42 | $225 |
| Endoscopic destruction of esophagus, stomach, or bowel growth Removal of a polyp or growth in the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The procedure is performed through the mouth to access and destroy the abnormal tissue. |
17 | $180 | $1,039 |
| Colonoscopy A diagnostic exam of the large bowel using a flexible endoscope to visualize the interior of the colon. |
17 | $141 | $856 |
| Endoscopic removal of foreign body from esophagus, stomach, or upper small bowel A flexible endoscope is used to locate and remove a foreign object from the esophagus, stomach, or upper small intestine. |
16 | $87 | $799 |
| Destruction of large bowel polyp via endoscope Removal of a polyp or growth in the large intestine using a flexible tube with a camera. The procedure is performed through the endoscope to destroy the tissue. |
16 | $215 | $1,978 |
| Stomach outlet dilation via endoscopy A flexible tube with a camera is used to widen the opening at the bottom of the stomach. This procedure helps relieve blockages or narrowing in the stomach outlet. |
15 | $90 | $792 |
| Endoscopic insertion of stomach tube A flexible endoscope is used to guide the placement of a tube into the stomach. |
15 | $162 | $994 |
| Radiologist review of digestive tract imaging A radiologist reviews images to guide the opening of the digestive tract. |
15 | $23 | $123 |
| Colonoscopy for colorectal cancer screening, high risk A colonoscopy performed to screen for colorectal cancer in individuals identified as being at high risk for the disease. |
14 | $165 | $856 |
| Endoscopic biopsy of gallbladder, pancreas, liver, and bile ducts A procedure using a flexible endoscope to collect tissue samples from the gallbladder, pancreas, liver, and bile ducts for examination. |
13 | $14 | $1,530 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
The majority of payments (77%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers. Total industry engagement is in the top 8% for gastroenterology in CA.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Lee is a mixed practice specialist, with above-average Medicare volume (top 15% in CA), with consulting-driven industry engagement in the top 8% of CA peers, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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