Leroi Stephenson, M.D.
NPI 1598909384 · Anesthesiology Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leroi Stephenson, M.D. is a Anesthesiology Physician provider in New Haven, CT (NPI 1598909384).
Provider details
- NPI number
- 1598909384
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
84 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) |
|---|---|---|
| Anesthesia for Procedure to Assess Heart Electrical Activity00537 | 26 | $506 |
| Anesthesia for Placement Or Revision of Blood Flow Shunt01844 | 17 | $358 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 17 | $48 |
| Anesthesia for Insertion of Permanent Heart Pacemaker00530 | 13 | $280 |
| Anesthesia for X-Ray on Artery of Neck Or Heart01925 | 11 | $387 |
Typical Medicare-allowed amounts for these services range $48–$506 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-04-24
- Last updated
- 2010-06-28
Frequently asked questions
- What is Leroi Stephenson's NPI number?
- Leroi Stephenson's National Provider Identifier (NPI) is 1598909384, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leroi Stephenson's specialty?
- Leroi Stephenson is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Leroi Stephenson located?
- Leroi Stephenson's practice location on file with NPPES is 333 Cedar St, New Haven, CT 06510-3206.
- What is Leroi Stephenson's phone number?
- The practice phone number listed in the NPPES registry for Leroi Stephenson is (203) 785-2802.
- Does Leroi Stephenson accept Medicare?
- Leroi Stephenson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leroi Stephenson's NPI active?
- Yes — Leroi Stephenson's NPI (1598909384) is active in the NPPES registry as of the last update on 2010-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.