Maciej Klosowski, MD
NPI 1093177628 · Anesthesiology Physician · Lewes, DE
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maciej Klosowski, MD is a Anesthesiology Physician provider in Lewes, DE (NPI 1093177628).
Provider details
- NPI number
- 1093177628
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C1-0024033 (DE)
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
10 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
622 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) |
|---|---|---|
| Anesthesia for Exam of Colon Using an Endoscope00812 | 144 | $50 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 61 | $68 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 46 | $78 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 42 | $60 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 35 | $192 |
| Anesthesia for Other Procedure on Upper Abdomen00790 | 31 | $160 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
- 2016-03-23
- Last updated
- 2021-08-27
- Certified
- 2021-08-27
Frequently asked questions
- What is Maciej Klosowski's NPI number?
- Maciej Klosowski's National Provider Identifier (NPI) is 1093177628, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maciej Klosowski's specialty?
- Maciej Klosowski is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Maciej Klosowski located?
- Maciej Klosowski's practice location on file with NPPES is 424 Savannah Rd, Lewes, DE 19958-1462.
- What is Maciej Klosowski's phone number?
- The practice phone number listed in the NPPES registry for Maciej Klosowski is (302) 645-3580.
- Does Maciej Klosowski accept Medicare?
- Maciej Klosowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maciej Klosowski's NPI active?
- Yes — Maciej Klosowski's NPI (1093177628) is active in the NPPES registry as of the last update on 2021-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.