Ioanis Siderias, MD
NPI 1164463857 · Emergency Medicine Physician · Sayville, NY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ioanis Siderias, MD is a Emergency Medicine Physician provider in Sayville, NY (NPI 1164463857).
Provider details
- NPI number
- 1164463857
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 217866 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,052 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 400 | $103 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 174 | $67 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 113 | $142 |
| Automated Urinalysis Test81003 | 103 | $2 |
| X-Ray of Chest, 2 Views71046 | 70 | $37 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 | 60 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 142 | 136 |
| Doxycycline Hyclate | 140 | 140 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 94 | 84 |
| Cephalexin | 79 | 77 |
| Azithromycin | 46 | 46 |
| Doxycycline Monohydrate | 40 | 40 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 37 | 37 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-10
- Last updated
- 2013-10-24
Frequently asked questions
- What is Ioanis Siderias's NPI number?
- Ioanis Siderias's National Provider Identifier (NPI) is 1164463857, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ioanis Siderias's specialty?
- Ioanis Siderias is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ioanis Siderias located?
- Ioanis Siderias's practice location on file with NPPES is 5600 Sunrise Hwy, Sayville, NY 11782-1017.
- What is Ioanis Siderias's phone number?
- The practice phone number listed in the NPPES registry for Ioanis Siderias is (631) 563-7828.
- Does Ioanis Siderias accept Medicare?
- Ioanis Siderias is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ioanis Siderias's NPI active?
- Yes — Ioanis Siderias's NPI (1164463857) is active in the NPPES registry as of the last update on 2013-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.