Physician Profile
Unclaimed ProfileAbout LEE
John Gunn Lee, MD is a healthcare provider in Orange, CA specialising in gastroenterology. John trained at University of Miami, Lm Miller School of Medicine, graduating in 1987.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Lee's specialty?
Dr. Lee is a gastroenterology in Orange, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where can I find Dr. Lee?
Dr. Lee is listed at 101 THE CITY DRIVE SOUTH UCI MEDICAL CENTER, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Lee?
The number on file is (714) 456-8978. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Lee?
Dr. Lee's National Provider Identifier is 1487734521. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Lee's medical education?
Dr. Lee attended University of Miami, Lm Miller School of Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Lee have?
Dr. Lee has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Lee known for?
According to Medicare billing data, Dr. Lee performs procedures including ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare; reads or performs imaging such as review by radiologist of image to guide opening of digestive tract, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Lee's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lee. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (714) 456-8978
- Email not available
Practice Locations
101 THE CITY DRIVE SOUTH UCI MEDICAL CENTER
Orange, CA 92868
Procedures Most Often Billed to Medicare
1,578 services · 1,389 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43259 |
336 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
205 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
178 |
| Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43242 |
129 |
| Removal of stone or debris from bile or pancreatic duct using a flexible endoscope | Procedure | 43264 |
76 |
| Removal of large bowel tissue using a flexible endoscope | Procedure | 45390 |
71 |
| Replacement of stent in pancreatic or bile duct using a flexible endoscope | Procedure | 43276 |
71 |
| Insertion of stent into pancreatic or bile duct using a flexible endoscope | Procedure | 43274 |
61 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
52 |
| Balloon dilation of pancreatic or bile duct or sphincter using a flexible endoscope | Procedure | 43277 |
34 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other gastroenterology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 31 related providers in 4 groups
Other gastroenterology specialists in Orange 7
Same specialty, same city.
Trained at University of Miami, Lm Miller School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at University of Miami, Lm Miller School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.