Active NPI
Mark Andrew Chanasue, MD
- Psychiatry Physician
- Ossining, NY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- 2024022228
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 200143059 | Medicaid | MO |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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, NY
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| 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 UniversityNorth Shore-Lij Medical PC
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
Merit-based Incentive Payment System (MIPS)
- Final score
- 84.2 of 100
- 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
| Organization | Specialty | Status | New 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
- 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.
-
- General Acute Care Hospital
- Cleveland, OH
- NPI 1700828852
-
- Community/Retail Pharmacy
- Sleepy Hollow, NY
- NPI 1285706077
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Sleepy Hollow, NY
- NPI 1720185267
Hospital
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 24, 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.
- 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.