Mark Matthew Landreneau, MD
Neurology Physician · New Haven, CT
Mark Matthew Landreneau, MD is a neurology physician with a practice address in New Haven, Connecticut, and NPI 1659646875, issued on Mar 21, 2012. Check the license (Connecticut 55629, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mark Matthew Landreneau
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 55629 CT
Self-reported in NPPES; status is on the state search - Practice location
- 285 Nicoll St Ste 104, New Haven, CT 06511
- Phone
- (203) 606-2395
- Enumerated
- Mar 21, 2012
- Record last updated
- Mar 11, 2026
- Medicaid ID
- 008072418 CT
- Medicare enrollment
- Enrolled (PECOS I20180626000175); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2012
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 345 in Connecticut → Look up another NPI →
Also registered at 285 Nicoll St Ste 104
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Krause, APRNPsychiatric/Mental Health Clinical Nurse Specialist1811911795
Verify Mark Matthew Landreneau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 55629Check 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 one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Matthew Landreneau among 345 neurology physician records in Connecticut
Mark Matthew Landreneau, MD is one of 345 neurology physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 60% of them.
- NPI issued2012 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2009 among the 216 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
121 neurology physician records list a practice address in New Haven
They are 121 of the 9,793 NPPES records with a practice address in New Haven, and 345 neurology physician records in Connecticut.
All 345 in Connecticut → Every provider in New Haven → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Joao De Aquino, M.D.New Haven, CT 065111710398235
- Tova Gardin, MDNew Haven, CT 065111790212959
- Erika Jessen, M. D.New Haven, CT 065111952345407
- Daniel Lafleur, M. D.New Haven, CT 065111174567440
- Lawrence Levenson, M. D.New Haven, CT 065111629019807
- James McVeety, MDNew Haven, CT 065111700812427
- Jennifer Rosen, MDNew Haven, CT 065111245552785
- Louis Sanfilippo, M. D.New Haven, CT 065111043248255
Common questions
What is Mark Matthew Landreneau, MD's NPI number?
Mark Matthew Landreneau, MD's National Provider Identifier (NPI) is 1659646875, issued on Mar 21, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mark Matthew Landreneau, MD located?
The NPPES record lists a practice address at 285 Nicoll St Ste 104, New Haven, CT, 06511. Phone: (203) 606-2395. Providers update this record themselves, so call before visiting.
How can I verify Mark Matthew Landreneau, MD's license?
NPPES lists Connecticut license number 55629, 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.