Individual provider Active NPI

Jan Slupski, MD

  • Internal Medicine Physician
  • Norwalk, CT
National Provider Identifier
1487396933
Registry record updated Apr 1, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
80315 Issued in CT
Practice address
497 Westport Ave
Norwalk, CT 06851-4411
Phone
(203) 424-2830
NPI assigned
Apr 13, 2022
Last updated
Apr 1, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 1, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X NU
Internal Medicine Physician 207R00000X 80315 CT Primary

Addresses

Primary practice location

497 Westport Ave
Norwalk, CT 06851-4411

Mailing address

34 Maple St
Norwalk, CT 06850-3894
Phone (845) 790-2085

Other practice location 1

34 Maple St
Norwalk, CT 06850-3894
Phone (845) 790-2085

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20250829000983 CT Practitioner - Internal Medicine 9537660774 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Rehabilitation Associates IncGroup PAC ID 8022905322, shared by 2 NPIs, 525 clinicians
Nuvance Health Medical Practice CT IncGroup PAC ID 4789597691, 742 clinicians

Practice addresses (Care Compare)

1931 Black Rock Tpke
Fairfield, CT 06825-3506
Phone (203) 384-8681

497 Westport Ave
Norwalk, CT 06851-4411
Phone (203) 852-3494

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
80315CTMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Nuvance Health Medical Practice CT, Inc. Internal Medicine CurrentSince Sep 8, 2025 Accepting new patients

Locations

24 Hospital Ave
Danbury, CT 06810
Phone (203) 739-7118

34 Maple St
Norwalk, CT 06850
Phone (203) 852-2000

497 Westport Ave
Norwalk, CT 06851
Phone (203) 276-4888

Organizations & group practices 1

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.

Hospital & facility affiliations 6

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

NPI Registry JSON

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

{
    "created_epoch": "1649808000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1743465600000",
    "number": "1487396933",
    "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",
            "telephone_number": "845-790-2085"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "497 WESTPORT AVE",
            "city": "NORWALK",
            "state": "CT",
            "postal_code": "068514411",
            "telephone_number": "203-424-2830"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "34 Maple St",
            "address_purpose": "LOCATION",
            "city": "Norwalk",
            "state": "CT",
            "postal_code": "068503894",
            "country_code": "US",
            "telephone_number": "845-790-2085",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SLUPSKI",
        "first_name": "JAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-13",
        "last_updated": "2025-04-01",
        "certification_date": "2025-04-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "80315",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Norwalk, CT

Sources for this page

Verify at the official NPI Registry.