Active NPI
Gillian V Kupakuwana-Suk, M.D., PHD
- Hematology & Oncology Physician
- New Haven, CT
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- 298769
- Practice address
- 15 York St
Ynhh Dept of Medicine, LMP 1092
New Haven, CT 06510-3221 - Phone
- (203) 688-5555
- NPI assigned
- May 24, 2016
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Hematology & Oncology Physician | 207RH0003X | 298769 | NY | Primary |
| Internal Medicine Physician | 207R00000X | 298769 | NY |
Addresses
Primary practice location
15 York St
Ynhh Dept of Medicine, LMP 1092
New Haven, CT 06510-3221
Mailing address
Dept. of Medicine Medical Service Group
750 E. Adams St.
Syracuse, NY 13210
Phone (315) 464-8200
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Hospitalist
- Education
- Columbia University College of Physicians and Surgeons, 2016
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
750 E Adams St
Syracuse, NY 13210-2306
Phone (315) 464-5240
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 86.4 of 100
- Quality
- 72.79
- Improvement activities
- 40
- Cost
- 71.22
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine, Doctor of Philosophy
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Department of Medicine Medical Serv GRP at Suny HLTH Sci Ctr Syr in | Internal Medicine | Current | Accepting new patients |
| Department of Medicine Medical Service Group | Hematology & Oncology | Current | Accepting new patients |
| Apogee Medical Group, New York, PC | Internal Medicine | Current | Accepting new patients |
| Suny Health Science Center at Syracuse | Past | Accepting new patients | |
| Samaritan Medical Center | Past | Accepting new patients |
Locations
515 Main St
Olean, NY 14760
Phone (716) 373-2600
4900 Broad Rd
Rm 1139
Syracuse, NY 13215
Phone (315) 492-5555
750 E Adams St
Syracuse, NY 13210
Phone (315) 464-4363
830 Washington St
Watertown, NY 13601
Phone (315) 785-4000
Interoperability endpoints
- gkupakuwana171725@direct.upstate.edu
Organizations & group practices 5
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.
-
- Internal Medicine Physician
- Syracuse, NY
- NPI 1063468239
-
- Hematology & Oncology Physician
- Homer, NY
- NPI 1205104262
-
- General Acute Care Hospital
- Watertown, NY
- NPI 1598713745
-
- General Acute Care Hospital
- Syracuse, NY
- NPI 1578554630
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Syracuse, NY
- NPI 1578554630
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1464048000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1758067200000",
"number": "1851748438",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "DEPT. OF MEDICINE MEDICAL SERVICE GROUP",
"address_2": "750 E. ADAMS ST.",
"city": "SYRACUSE",
"state": "NY",
"postal_code": "13210",
"telephone_number": "315-464-8200",
"fax_number": "315-464-8206"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "15 YORK ST",
"address_2": "YNHH DEPT OF MEDICINE, LMP 1092",
"city": "NEW HAVEN",
"state": "CT",
"postal_code": "065103221",
"telephone_number": "203-688-5555"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KUPAKUWANA-SUK",
"first_name": "GILLIAN",
"middle_name": "V",
"name_prefix": "Dr.",
"credential": "M.D., PHD",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2016-05-24",
"last_updated": "2025-09-17",
"certification_date": "2025-09-17",
"status": "A"
},
"taxonomies": [
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "NY",
"license": "298769",
"primary": true
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "NY",
"license": "298769",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in New Haven, CT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 17, 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.