Mark Matthew Landreneau, MD

Primary specialty

Neurology PhysicianTaxonomy code 2084N0400X

License

55629 Issued in CT

Practice address

285 Nicoll St Ste 104
New Haven, CT 06511-2625

Phone

(203) 606-2395

NPI assigned

Mar 21, 2012

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CT

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Neurology

Education

Columbia University College of Physicians and Surgeons, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Yale-New Haven Hospital Hospital, New Haven, CT, CCN 070022

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mlandreneau43644@direct.ynhh.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Yale University

  • Anesthesiology Physician
  • New Haven, CT
  • NPI 1205822236

  Neurology

  Medicare reassignment Care Compare group NPD
• Centered PLLC

  • Psychiatric/Mental Health Clinical Nurse Specialist
  • New Haven, CT
  • NPI 1699406132

  Neurology

  Medicare reassignment NPD
• Trinity Health of New England Provider Network Organization Inc

  • Internal Medicine Physician
  • Hartford, CT
  • NPI 1003882812
  Medicare reassignment NPD
• Yale University

  • Durable Medical Equipment & Medical Supplies
  • Fairfield, CT
  • NPI 1548066962
  NPD
• Trinity Health of New England Provider Network Organization Inc

  • Internal Medicine Physician
  • Waterville, ME
  • NPI 1134779531
  NPD
• Baystate Medical Practices, Inc

  • Emergency Medical Services (Emergency Medicine) Physician
  • Springfield, MA
  • NPI 1548205909
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1336139500
  Care Compare affiliation
• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1578778726
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1332288000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773187200000",
    "number": "1659646875",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "285 NICOLL ST APT 104",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065110925",
            "telephone_number": "203-606-2395"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "285 NICOLL ST STE 104",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065112625",
            "telephone_number": "203-606-2395"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LANDRENEAU",
        "first_name": "MARK",
        "middle_name": "MATTHEW",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-03-21",
        "last_updated": "2026-03-11",
        "certification_date": "2026-03-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "CT",
            "license": "55629",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "008072418",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Rachel J Lampert, MD
• Clara Yomaira Lampi, MD
• Robert Nelson Landback, MFT
• Benjamin John Landis, MD
• Margaret Jean Landreneau, MD
• Marie L Landry, MD
• Brianna Lane
• Jill Nadine Langan, RN
• Brittany Clarissa Langdon, PHARMD, RPH
• Jonathan Langdon, M.D., PH.D.

• Neurology Physician in New Haven, CT
• Providers in New Haven, CT by specialty
• Neurology Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 11, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.