Physician Profile
Unclaimed ProfileAbout LEON
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Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Leon?
Dr. Leon is a gastroenterology in Maywood, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
What is Dr. Leon's address?
Dr. Leon is listed at 2160 S 1ST AVE, Maywood, IL 60153. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Leon?
The number on file is (708) 216-9000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Leon?
Dr. Leon's National Provider Identifier is 1326010067. 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
Where did Dr. Leon train?
Dr. Leon attended Other, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Leon have?
Dr. Leon has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Leon perform?
According to Medicare billing data, Dr. Leon performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of large bowel using a flexible endoscope and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope; provides treatments such as study of esophagus to assess movement, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Leon's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Leon. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (708) 216-9000
- Email not available
Practice Locations
2160 S 1ST AVE
Maywood, IL 60153
Procedures Most Often Billed to Medicare
648 services · 568 patients · 14 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
54 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
52 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
51 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
33 |
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
20 |
| Study of esophagus to assess movement | Treatment | 91010 |
42 |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
171 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
59 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
47 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
44 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 6
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.
Other gastroenterology specialists in Maywood 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 8
Providers in IL 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.