Individual provider Active NPI

Mark Andrew Chanasue, MD

  • Psychiatry Physician
  • Ossining, NY
National Provider Identifier
1366904757
Registry record updated Mar 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
2024022228 Issued in MO
Practice address
22 Rockledge Ave
Ossining, NY 10562-5960
Phone
(914) 944-5220
NPI assigned
Apr 3, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 24, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X 2024022228 MO Primary

Addresses

Primary practice location

22 Rockledge Ave
Ossining, NY 10562-5960

Mailing address

PO Box 7412011
Chicago, IL 60674-2011
Phone (314) 286-1700

Other practice location 1

3009 N Ballas Rd
Dept Psychiatry, Ste 141A
Saint Louis, MO 63131-2322
Phone (314) 286-1700

Other identifiers 1

IdentifierTypeStateIssuer
200143059MedicaidMO

Electronic endpoints 1

TypeEndpointUseAffiliation
FHIR URL https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ Washington University

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MO, NY2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20240718001405 MO Practitioner - Psychiatry 8628438017 Reassigns benefits to 1 organization
I20260406001454 NY Practitioner - Psychiatry 8628438017 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Psychiatry
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Washington University 2,968 clinicians
North Shore-Lij Medical PC 6,374 clinicians

Practice addresses (Care Compare)

600 S Taylor Ave
Suite 122
Saint Louis, MO 63110-1035
Phone (314) 286-1700

701 N Broadway
Sleepy Hollow, NY 10591-1020
Phone (914) 366-3000

Hospital & facility affiliations

  • Phelps Hospital Hospital, Sleepy Hollow, NY, CCN 330261

Merit-based Incentive Payment System (MIPS)

Final score
84.2 of 100Reported as group
Quality
71.6
Promoting interoperability
100
Improvement activities
40
Cost
75.75

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
The Metrohealth System Current Accepting new patients
Phelps Memorial Hospital Association Past Accepting new patients
North Shore-Lij Medical PC Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: mchanasue253891@direct.metrohealth.org

Organizations & group practices 4

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.

Hospital & facility affiliations 1

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": "1554249600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774310400000",
    "number": "1366904757",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "314-286-1700",
            "fax_number": "314-627-7225"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 ROCKLEDGE AVE",
            "city": "OSSINING",
            "state": "NY",
            "postal_code": "105625960",
            "telephone_number": "914-944-5220"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3009 N Ballas Rd",
            "address_2": "Dept Psychiatry, Ste 141A",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631312322",
            "country_code": "US",
            "telephone_number": "314-286-1700",
            "fax_number": "314-627-7225",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHANASUE",
        "first_name": "MARK",
        "middle_name": "ANDREW",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-04-03",
        "last_updated": "2026-03-24",
        "certification_date": "2026-03-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MO",
            "license": "2024022228",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200143059",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "3009 N Ballas Rd",
            "address_2": "Dept Psychiatry, Ste 141A",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631312322",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Ossining, NY

Sources for this page

Verify at the official NPI Registry.