Leon Kogan, M.D.
NPI 1598916223 · Gastroenterology Physician · Babylon, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leon Kogan, M.D. is a Gastroenterology Physician provider in Babylon, NY (NPI 1598916223).
Provider details
- NPI number
- 1598916223
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 15962 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,205 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 571 | $136 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 418 | $90 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 367 | $150 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 216 | $198 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 133 | $112 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 477 | 187 |
| Omeprazole | 196 | 100 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 141 | 136 |
| Pantoprazole Sodium | 97 | 48 |
| Dicyclomine Hcl | 32 | 20 |
| Peg 3350/Sod Sulf,chlr/Pot/Magbrand: Suflave | 28 | 27 |
| Adalimumabbrand: Humira(cf) Pen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$825 across 42 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 580 St. Johnsbury Rd.Littleton, NH 03561Phone: (603) 259-7798Fax: (201) 986-1871
- 1945 State Route 33Neptune, NJ 07753-4859Phone: (732) 897-2770Fax: (732) 897-3970
Registry dates
- Enumerated
- 2008-09-30
- Last updated
- 2024-10-25
- Certified
- 2024-10-25
Frequently asked questions
- What is Leon Kogan's NPI number?
- Leon Kogan's National Provider Identifier (NPI) is 1598916223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leon Kogan's specialty?
- Leon Kogan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Leon Kogan located?
- Leon Kogan's practice location on file with NPPES is 400 W Main St Ste 300, Babylon, NY 11702-3019.
- What is Leon Kogan's phone number?
- The practice phone number listed in the NPPES registry for Leon Kogan is (631) 321-6400.
- Does Leon Kogan accept Medicare?
- Leon Kogan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leon Kogan's NPI active?
- Yes — Leon Kogan's NPI (1598916223) is active in the NPPES registry as of the last update on 2024-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.