Ellen Walker Seyller, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

082545 Issued in CT

Practice address

70 Shunpike Rd
Cromwell, CT 06416

Phone

(860) 358-5280

Fax

(860) 358-8650

NPI assigned

Apr 7, 2021

Last updated

Nov 5, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Family Practice

Education

University of Vermont College of Medicine, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

MHS Primary Care, Inc.Group PAC ID 4082507371, 180 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Middlesex Health Care at Home and Hospice Program Home health agency, Middletown, CT, CCN 077086
• Middlesex Health Care at Home & Hospice Program Hospice, Middletown, CT, CCN 071522
• Middlesex Hospital Hospital, Middletown, CT, CCN 070020
• Pilgrim Manor Nursing home, Cromwell, CT, CCN 075306

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: eseyller64462@middlesexhealthprd.direct-ci.com

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.

• MHS Primary Care, Inc

  • Family Medicine Physician
  • Middletown, CT
  • NPI 1336279058
  Medicare reassignment Care Compare group NPD
• MHS Primary Care

  • Family Medicine Physician
  • Old Saybrook, CT
  • NPI 1104043017
  NPD
• MHS Primary Care Inc

  dba Middlesex Health Concierge Medicine

  • Internal Medicine Physician
  • Essex, CT
  • NPI 1750276655

  Family Medicine

  NPD

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

• Middlesex Hospital

  dba Middlesex Hospital Homecare

  • Home Health Agency
  • Middletown, CT
  • NPI 1194781328
  Care Compare affiliation Name & address match
• Covenant Home, Inc. (Connecticut)

  dba Pilgrim Manor

  • Skilled Nursing Facility
  • Cromwell, CT
  • NPI 1851497093

  Nursing home

  Care Compare affiliation
• Middlesex Hospital

  • General Acute Care Hospital
  • Middletown, CT
  • NPI 1760454334
  Care Compare affiliation

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

{
    "created_epoch": "1617753600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762300800000",
    "number": "1558940445",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "28 CRESCENT ST",
            "city": "MIDDLETOWN",
            "state": "CT",
            "postal_code": "064573654",
            "telephone_number": "860-358-4870",
            "fax_number": "860-358-8661"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "70 SHUNPIKE RD",
            "city": "CROMWELL",
            "state": "CT",
            "postal_code": "06416",
            "telephone_number": "860-358-5280",
            "fax_number": "860-358-8650"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SEYLLER",
        "first_name": "ELLEN",
        "middle_name": "WALKER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-07",
        "last_updated": "2025-11-05",
        "certification_date": "2025-11-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CT",
            "license": "082545",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jeffrey Joseph Scull, DDS
• Rocio Alexandra Segura
• Serenity Homecare LLC (Serenity Transportation)
• Serenity Homecare LLC
• Fatima Florinda Serrano
• Judith Ann Sgaglione, SLP
• Surya Shah
• Mona Shahriari
• Jamilah A. Shakur
• Julia Shapiro

• Family Medicine Physician in Cromwell, CT
• Providers in Cromwell, CT by specialty
• Family Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 5, 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.