Kenneth Hillel Shubin Stein, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

226900 Issued in NY

Practice address

55 Post Rd W
Westport, CT 06880-4235

Phone

(917) 905-7236

Fax

(917) 475-4703

NPI assigned

May 3, 2011

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

Medicare fee-for-service enrollment

Enrolled in NY

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kenneth.shubinstein@831466553606148.direct.elationemr.com
• FHIR API: https://api.platform.athenahealth.com/24265/brand/1/csg/1/fhir/r4

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.

• Cortex Health PLLC

  • Brain Injury Medicine (Psychiatry & Neurology) Physician
  • Southport, CT
  • NPI 1801603576
  NPD Authorized official
• Atria Physician Practice New York, PC

  • Internal Medicine Physician
  • New York, NY
  • NPI 1194487520
  NPD

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

{
    "created_epoch": "1304380800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788134400000",
    "number": "1437441987",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 POST RD W FL 2",
            "city": "WESTPORT",
            "state": "CT",
            "postal_code": "068804235",
            "telephone_number": "917-453-1081",
            "fax_number": "917-475-4703"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 POST RD W",
            "city": "WESTPORT",
            "state": "CT",
            "postal_code": "068804235",
            "telephone_number": "917-905-7236",
            "fax_number": "917-475-4703"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3449 Post Rd",
            "address_purpose": "LOCATION",
            "city": "Southport",
            "state": "CT",
            "postal_code": "068901399",
            "country_code": "US",
            "telephone_number": "917-905-7236",
            "fax_number": "917-475-4703",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SHUBIN STEIN",
        "first_name": "KENNETH",
        "middle_name": "HILLEL",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-05-03",
        "last_updated": "2026-08-31",
        "certification_date": "2026-08-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "226900",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "CT",
            "license": "69862",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sheraton Caregivers
• Boris V Sheynberg, MD
• Shoreline Integrative Pharmacy LLC
• Shoreline Therapy Center of Southwest CT LLC
• Shreya Patel OD, PC
• Robban Ariel Sica, M.D.
• Jessica Gail Siegel, LCSW
• Cesar A Sierra, MD
• Melissa Rennia Signorile, LPC
• Stefania Anna Sigurdsson

• Internal Medicine Physician in Westport, CT
• Providers in Westport, CT by specialty
• Internal Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 31, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.