Kostas Sideridis, DO
NPI 1003913682 · Gastroenterology Physician · Syosset, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kostas Sideridis, DO is a Gastroenterology Physician provider in Syosset, NY (NPI 1003913682).
Provider details
- NPI number
- 1003913682
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 220299 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
3,402 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 768 | $204 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 726 | $87 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 303 | $18 |
| Advance Care Planning, First 30 Minutes99497 | 294 | $83 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 230 | $192 |
| Infusion Into a Vein for Hydration, 31-60 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 789 | 285 |
| Sucralfate | 364 | 167 |
| Cholestyramine (with Sugar)brand: Cholestyramine | 117 | 46 |
| Omeprazole | 116 | 54 |
| Famotidine | 111 | 39 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 104 | 102 |
| Dicyclomine Hcl | 96 | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$10,110 across 171 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
- 2006-09-17
- Last updated
- 2009-06-02
Frequently asked questions
- What is Kostas Sideridis's NPI number?
- Kostas Sideridis's National Provider Identifier (NPI) is 1003913682, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kostas Sideridis's specialty?
- Kostas Sideridis is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Kostas Sideridis located?
- Kostas Sideridis's practice location on file with NPPES is 237 Jericho Turnpike, Syosset, NY 11791.
- What is Kostas Sideridis's phone number?
- The practice phone number listed in the NPPES registry for Kostas Sideridis is (516) 584-6400.
- Does Kostas Sideridis accept Medicare?
- Kostas Sideridis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kostas Sideridis's NPI active?
- Yes — Kostas Sideridis's NPI (1003913682) is active in the NPPES registry as of the last update on 2009-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.