Leroi Stephenson, M.D.
Anesthesiology Physician · New Haven, CT
Leroi Stephenson, M.D. is an anesthesiology physician with a practice address in New Haven, Connecticut, and NPI 1598909384, issued on Apr 24, 2009. Check the license (Connecticut 048844, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Leroi Stephenson
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 048844 CT
235862 NY
Self-reported in NPPES; status is on the state search - Practice location
- 333 Cedar St, New Haven, CT 06510
- Phone
- (203) 785-2802
- Enumerated
- Apr 24, 2009
- Record last updated
- Jun 28, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20260115001286); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 797 in Connecticut → Look up another NPI →
Also registered at 333 Cedar St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khalid Abbed, MDNeurological Surgery Physician1386612026
- Wasan Abd Wahab, M.D.Neurology Physician1881380053
- Ghaith Abdulkarim, M.D.Critical Care Medicine (Anesthesiology) Physician1295021236
- Clara Abraham, MDGastroenterology Physician1629139456
- Aymen Alian, M.B.B.CH, M.D.Anesthesiology Physician1386803740
- Robert Alpern, MDNephrology Physician1477785285
Verify Leroi Stephenson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 048844Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 4 group practices
- North Shore - Lij Anesthesiology, PCBay Shore, NY
- Physician Affiliate Group OF New York PCNew York, NY
- Rwjbh Observation Associates LLCToms River, NJ
- Spectrum Health Primary Care PartnersGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leroi Stephenson among 797 anesthesiology physician records in Connecticut
Leroi Stephenson, M.D. is one of 797 anesthesiology physician records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 61% of them.
- NPI issued2009 · 61% of these records are older, 35% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2003 · median 2006 among the 550 with a school on file
- Record last updated2010 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
215 anesthesiology physician records list a practice address in New Haven
They are 215 of the 9,793 NPPES records with a practice address in New Haven, and 797 anesthesiology physician records in Connecticut.
All 797 in Connecticut → Every provider in New Haven → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- David Freyle, MDNew Haven, CT 065101487635728
- Dorothy Gaal, MDNew Haven, CT 065101861473563
- Thomas Halaszynski, MDNew Haven, CT 065101679554984
- Lars Helgeson, MDNew Haven, CT 065101528049210
- Adriana Herrera, MDNew Haven, CT 065101992786685
- Viji Kurup, MDNew Haven, CT 065101285615971
- Lisa Leffert, MDNew Haven, CT 065101992795579
- Wanda Popescu, MDNew Haven, CT 065101861473548
Common questions
What is Leroi Stephenson, M.D.'s NPI number?
Leroi Stephenson, M.D.'s National Provider Identifier (NPI) is 1598909384, issued on Apr 24, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Leroi Stephenson, M.D. located?
The NPPES record lists a practice address at 333 Cedar St, New Haven, CT, 06510. Phone: (203) 785-2802. Providers update this record themselves, so call before visiting.
How can I verify Leroi Stephenson, M.D.'s license?
NPPES lists Connecticut license number 048844, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.