Brian V Monahan, MD

Primary specialty

Colon & Rectal Surgery PhysicianTaxonomy code 208C00000X

License

80590 Issued in CT

Practice address

34 Maple St
Norwalk, CT 06850

Phone

(203) 852-2000

NPI assigned

Jun 3, 2019

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

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

Colorectal Surgery (Proctology)

Education

Georgetown University School of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Nuvance Health Medical Practice CT IncGroup PAC ID 4789597691, 742 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Norwalk Hospital Hospital, Norwalk, CT, CCN 070034
• Danbury Hospital Hospital, Danbury, CT, CCN 070033

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Nuvance Health Medical Practice CT, Inc.

  • Internal Medicine Physician
  • Danbury, CT
  • NPI 1407898117

  Surgery

  Medicare reassignment Care Compare group NPD

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

• Danbury Hospital

  • Dental Clinic/Center
  • Danbury, CT
  • NPI 1003835935

  Hospital

  Care Compare affiliation
• Danbury Hospital

  • General Acute Care Hospital
  • Danbury, CT
  • NPI 1548293343
  Care Compare affiliation
• Norwalk Hospital Association

  • General Acute Care Hospital
  • Norwalk, CT
  • NPI 1346441953
  Care Compare affiliation
• Norwalk Hospital Association

  • General Acute Care Hospital
  • Norwalk, CT
  • NPI 1427041581
  Care Compare affiliation
• Norwalk Hospital Association

  • Land Ambulance
  • Norwalk, CT
  • NPI 1477546521

  Hospital

  Care Compare affiliation
• Norwalk Hospital Association

  • General Acute Care Hospital
  • Norwalk, CT
  • NPI 1649263880
  Care Compare affiliation

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

{
    "created_epoch": "1559520000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756252800000",
    "number": "1326606690",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "34 MAPLE ST",
            "city": "NORWALK",
            "state": "CT",
            "postal_code": "068503894"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "34 MAPLE ST",
            "city": "NORWALK",
            "state": "CT",
            "postal_code": "06850",
            "telephone_number": "203-852-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MONAHAN",
        "first_name": "BRIAN",
        "middle_name": "V",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-06-03",
        "last_updated": "2025-08-27",
        "certification_date": "2025-08-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "PA",
            "license": "MT217949",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CT",
            "license": "80590",
            "primary": false
        },
        {
            "code": "208C00000X",
            "taxonomy_group": "",
            "desc": "Colon & Rectal Surgery",
            "state": "CT",
            "license": "80590",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CONNECTICUT DEPARTMENT OF HEALTH",
            "identifier": "80590",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Nomzamo Gugu Mngomezulu
• Mobility and Movement Therapy LLC
• Modern Eyecare LLC
• Cecile Diane Moliva Anendaga, MD
• Karen Lin Moll
• Astrid Monsalve-Smith, D.C.
• Gwendolyn Calla Moore, CPNP
• Jennifer I Moore, MD
• Joanna Louise Moore, MD
• Monica Moore, APRN

• Colon & Rectal Surgery Physician in Norwalk, CT
• Providers in Norwalk, CT by specialty
• Colon & Rectal Surgery Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 27, 2025; 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.