Slawomir Oleszak, M.D.
NPI 1821004102 · Anesthesiology Physician · Stony Brook, NY
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Slawomir Oleszak, M.D. is a Anesthesiology Physician provider in Stony Brook, NY (NPI 1821004102).
Provider details
- NPI number
- 1821004102
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 207030 (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
19 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
283 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 61 | $50 |
| Anesthesia for Insertion of Permanent Heart Pacemaker00530 | 54 | $141 |
| Anesthesia for Procedure to Assess Heart Electrical Activity00537 | 54 | $327 |
| Anesthesia for Procedure to Correct Abnormal Heart Rhythm00410 | 38 | $70 |
| Anesthesia for Other Procedure on Neck Area (1 Year Or Older)00320 | 35 | $375 |
| Anesthesia for Other Procedure on Skin, Muscles, Or Nerves of Head, Neck, and Upper Back00300 | 16 | $256 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Slawomir Oleszak's NPI number?
- Slawomir Oleszak's National Provider Identifier (NPI) is 1821004102, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Slawomir Oleszak's specialty?
- Slawomir Oleszak is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Slawomir Oleszak located?
- Slawomir Oleszak's practice location on file with NPPES is Health Sciences Center, L4, #060, Stony Brook, NY 11794-8480.
- What is Slawomir Oleszak's phone number?
- The practice phone number listed in the NPPES registry for Slawomir Oleszak is (631) 444-2975.
- Does Slawomir Oleszak accept Medicare?
- Slawomir Oleszak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Slawomir Oleszak's NPI active?
- Yes — Slawomir Oleszak's NPI (1821004102) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.