Seymour Katz, M.D.
NPI 1255337424 · Gastroenterology Physician · Great Neck, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seymour Katz, M.D. is a Gastroenterology Physician provider in Great Neck, NY (NPI 1255337424).
Provider details
- NPI number
- 1255337424
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 094408 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,170 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) |
|---|---|---|
| Stool Analysis for Blood, By Peroxidase Activity82272 | 459 | $4 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 380 | $145 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 150 | $205 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 115 | $9 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 66 | $252 |
Typical Medicare-allowed amounts for these services range $4–$252 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 265 | 93 |
| Cholestyramine (with Sugar)brand: Cholestyramine | 93 | 44 |
| Lactulose | 86 | 28 |
| Mesalamine | 68 | 19 |
| Pantoprazole Sodium | 58 | 19 |
| Famotidine | 56 | 24 |
| Folic Acid | 38 | 14 |
| Ustekinumab |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$57 across 2 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
Registry dates
- Enumerated
- 2005-06-22
- Last updated
- 2024-06-20
- Certified
- 2024-06-20
Frequently asked questions
- What is Seymour Katz's NPI number?
- Seymour Katz's National Provider Identifier (NPI) is 1255337424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seymour Katz's specialty?
- Seymour Katz is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Seymour Katz located?
- Seymour Katz's practice location on file with NPPES is 1000 Northern Blvd, Great Neck, NY 11021-5312.
- What is Seymour Katz's phone number?
- The practice phone number listed in the NPPES registry for Seymour Katz is (516) 466-2340.
- Does Seymour Katz accept Medicare?
- Seymour Katz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seymour Katz's NPI active?
- Yes — Seymour Katz's NPI (1255337424) is active in the NPPES registry as of the last update on 2024-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.