Active NPI
Sivaveera Kandasamy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
- Stony Brook, NY
National Provider Identifier
1851788954
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
- License
- 337803
- Practice address
- 101 Nicolls Rd
Health Sciences Center T19-080
Stony Brook, NY 11794-8191 - Phone
- (631) 444-1820
- Fax
- (631) 444-8963
- NPI assigned
- Apr 16, 2015
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Surgery Physician | 208600000X | 337803 | NY | |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | 208G00000X | D0093659 | MD | |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | 208G00000X | 337803 | NY | Primary |
Addresses
Primary practice location
101 Nicolls Rd
Health Sciences Center T19-080
Stony Brook, NY 11794-8191
Mailing address
101 Nicolls Rd
Health Sciences Center T19-080
Stony Brook, NY 11794-8191
Phone (631) 444-1820
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MD, DC, NY
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
Care Compare profile
Medicare Care Compare- Specialty
- General Surgery
- Education
- Other, 2012
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
255 W Montauk Hwy
Life Care Ctr
Hampton Bays, NY 11946
Phone (631) 723-5000
Hospital & facility affiliations
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Upper gastrointestinal (GI) endoscopy for acid reflux | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| D0093659 | MD | MD | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician |
| 337803 | NY | MD | Family Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Stony Brook Surgical Associates, University Faculty Practice Corporati | Surgery | Current | Accepting new patients |
| University of Maryland Surgical Associates, PA | Current | Accepting new patients |
Locations
419 W Redwood St
Ste 300
Baltimore, MD 21201
Phone (410) 328-5300
22 S Greene St
#S8B13
Baltimore, MD 21201
Phone (410) 328-5878
419 W Redwood St
Fl 3
Baltimore, MD 21201
Phone (410) 328-5300
3001 Hospital Dr
Hyattsville, MD 20785
Phone (301) 618-2000
37 Research Way
Setauket, NY 11733
Phone (631) 444-4121
101 Nicolls Rd
#T19080
Stony Brook, NY 11794
Networks
- Healthfirst Medicare Network H1722
- Healthfirst Medicare Network H5989
- Healthfirst Medicare Network H9678
- Healthfirst Medicare Network H3359
Organizations & group practices 2
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.
-
- Surgery Physician
- Stony Brook, NY
- NPI 1063468536
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Stony Brook Southampton Hospital
- General Acute Care Hospital
- Southampton, NY
- NPI 1033224704
-
- General Acute Care Hospital
- Southampton, NY
- NPI 1225507114
-
- General Acute Care Hospital
- Greenport, NY
- NPI 1881690691
-
- General Acute Care Hospital
- Stony Brook, NY
- NPI 1972523348
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1429142400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1753660800000",
"number": "1851788954",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "101 NICOLLS RD",
"address_2": "HEALTH SCIENCES CENTER T19-080",
"city": "STONY BROOK",
"state": "NY",
"postal_code": "117948191",
"telephone_number": "631-444-1820",
"fax_number": "631-444-8963"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "101 NICOLLS RD",
"address_2": "HEALTH SCIENCES CENTER T19-080",
"city": "STONY BROOK",
"state": "NY",
"postal_code": "117948191",
"telephone_number": "631-444-1820",
"fax_number": "631-444-8963"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KANDASAMY",
"first_name": "SIVAVEERA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2015-04-16",
"last_updated": "2025-07-28",
"certification_date": "2025-07-28",
"status": "A"
},
"taxonomies": [
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "NY",
"license": "337803",
"primary": false
},
{
"code": "208G00000X",
"taxonomy_group": "",
"desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
"state": "MD",
"license": "D0093659",
"primary": false
},
{
"code": "208G00000X",
"taxonomy_group": "",
"desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
"state": "NY",
"license": "337803",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Stony Brook, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2025; 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.