Michelle Siegel Marrinan, MD

Primary specialty

Otology & Neurotology PhysicianTaxonomy code 207YX0901X

License

042226 Issued in CT

Practice address

49 Lake Ave
Greenwich, CT 06830-4501

Phone

(203) 869-2030

Fax

(203) 869-9262

NPI assigned

Jun 23, 2005

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Other names 1

• Michelle Siegel Former name

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

Otolaryngology

Education

Albert Einstein College of Medicine of Yeshiva University, 1997

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Greenwich Ear Nose and Throat PCGroup PAC ID 5890755193, 9 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Greenwich Hospital Association - Hospital, Greenwich, CT, CCN 070018

Merit-based Incentive Payment System (MIPS)

Final score

95 of 100Reported as group

Quality

90

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Greenwich Ear Nose & Throat PC

  • Otolaryngology Physician
  • Greenwich, CT
  • NPI 1316012511
  Medicare reassignment Care Compare group NPD
• Associates of Otolaryngology PC

  • Otolaryngology Physician
  • Greenwich, CT
  • NPI 1538353321
  NPD (past)
• New York City Health and Hospitals Corporation

  dba Gouverneur Healthcare Services

  • Clinic/Center
  • New York, NY
  • NPI 1548208127

  Otolaryngology

  NPD (past)

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

• Greenwich Hospital

  • General Acute Care Hospital
  • Greenwich, CT
  • NPI 1609846088
  Care Compare affiliation

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

{
    "created_epoch": "1119484800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1598761629",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "49 LAKE AVE",
            "city": "GREENWICH",
            "state": "CT",
            "postal_code": "068304501",
            "telephone_number": "203-869-2030",
            "fax_number": "203-869-9262"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "49 LAKE AVE",
            "city": "GREENWICH",
            "state": "CT",
            "postal_code": "068304501",
            "telephone_number": "203-869-2030",
            "fax_number": "203-869-9262"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARRINAN",
        "first_name": "MICHELLE",
        "middle_name": "SIEGEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-06-23",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "CT",
            "license": "042226",
            "primary": false
        },
        {
            "code": "207YX0901X",
            "taxonomy_group": "",
            "desc": "Otolaryngology, Otology & Neurotology",
            "state": "CT",
            "license": "042226",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "001422261",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MICHELLE",
            "last_name": "SIEGEL",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Ellika P Mardh, M.D.
• Sandra L Margoles, M,D,
• A Michael Marino, M.D.
• Mary Ellen Markowitz
• Gail Marie Marquez, LMHC, LPC
• Ernest Richard Marrone Sr., DC
• Rachel Marshall, PHD
• Martin N. Seif, PH.D., Psychologist, P.C.
• Jolene Rene Martin, APRN
• Kimberly A Martin, LCSW

• Otology & Neurotology Physician in Greenwich, CT
• Providers in Greenwich, CT by specialty
• Otology & Neurotology Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.