Hayley Chan, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

125082574 Issued in IL

Practice address

20 York St
New Haven, CT 06510-3220

Phone

(203) 688-4242

NPI assigned

Jun 9, 2023

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 IL

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: hchanmd374711@carlehiedirect.net

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.

• Gibson Community Hospital Association

  • Critical Access Hospital
  • Gibson City, IL
  • NPI 1114935681
  NPD (past)

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

{
    "created_epoch": "1686268800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781481600000",
    "number": "1285318345",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20 YORK ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-688-4242"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 YORK ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-688-4242"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHAN",
        "first_name": "HAYLEY",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-06-09",
        "last_updated": "2026-06-15",
        "certification_date": "2026-06-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "125082574",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Angelina Naomi Chambers, C.N.M.
• Shanai Chambers, LCSW
• Martha Muir Chamblin, LCSW
• Debra Holly Champagne, RDH
• Hannah Oi Hay Chan, M.D.
• Isaac Chan, M.D.
• Isaac Hong Yui Chan, MD
• Kathleen Chan, M.D.
• Lisa Chan, MD
• Winnie Chan, PA-C

• All providers in New Haven, CT
• Internal Medicine Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 15, 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.