Physician Profile
Unclaimed ProfileAbout STEIN
Based in Garden City, NY, Leonard B. Stein, M.D. is listed in the NPI registry under gastroenterology. Leonard is also listed as specializing in internal medicine. According to Medicare claims data, Leonard cared for 821 Medicare patients across 1,019 services.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (516) 248-3737
- Email not available
Practice Locations
1103 STEWART AVE
Garden City, NY 11530
Procedures Most Often Billed to Medicare
1,019 services · 821 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
50 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
47 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
42 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
35 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
443 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
279 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
69 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
54 |
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 5
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 — 29 related providers in 4 groups
Other gastroenterology specialists in Garden City 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in NY who bill this service to Medicare most often.
Common questions
What does Dr. Stein specialize in?
Dr. Stein is a gastroenterology in Garden City, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Stein located?
Dr. Stein is listed at 1103 STEWART AVE, Garden City, NY 11530. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Stein's phone number?
The number on file is (516) 248-3737. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Stein's NPI number?
Dr. Stein's National Provider Identifier is 1700990272. 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. Stein go to medical school?
Dr. Stein attended Other, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Stein been practicing?
Dr. Stein has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Stein do most often?
According to Medicare billing data, Dr. Stein performs procedures including biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare and biopsy of large bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Stein confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Stein. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.