Active NPI
Gurkamal Singh Chatta, MD
- Medical Oncology Physician
- Buffalo, NY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Medical Oncology Physician
- License
- 284329
- Practice address
- Elm and Carlton St
Buffalo, NY 14263-0001 - Phone
- (716) 845-2300
- Fax
- (716) 845-3519
- NPI assigned
- Feb 6, 2006
- 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 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Hematology & Oncology Physician | 207RH0003X | MD00025531 | WA | |
| Specialist | 174400000X | MD417845 | PA | |
| Medical Oncology Physician | 207RX0202X | MD228838 | OR | |
| Medical Oncology Physician | 207RX0202X | 284329 | NY | Primary |
Addresses
Primary practice location
Elm and Carlton St
Buffalo, NY 14263-0001
Mailing address
Elm and Carlton St
Buffalo, NY 14263-0001
Phone (716) 845-2300
Other practice location 1
2610 Uhrmann Rd
Klamath Falls, OR 97601-1123
Phone (541) 274-4171
Other identifiers 3
| Identifier | Type | State | Issuer |
|---|---|---|---|
| P01023152 | Other | WA | RAILROAD MEDICARE |
| 001748651 | Medicaid | PA | |
| 1114999083 | Medicaid | WA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY, OR
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Medical Oncology
- Education
- Other, 1979
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
Elm and Carlton St
Buffalo, NY 14263-0001
Phone (716) 845-2300
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Roswell Park Cancer Institute | Current | Accepting new patients | |
| Roswell Park Cancer Institute | Current | Accepting new patients | |
| Alpine Dermatology, LLC | Past | Accepting new patients | |
| Roswell Park Cancer Institute | Past | Accepting new patients | |
| Windber Hospital, Inc. | Past | Accepting new patients |
Locations
Dept 8000
Buffalo, NY 14267
Elm and Carlton St
Buffalo, NY 14263
Organizations & group practices 6
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.
-
- Multi-Specialty Clinic/Center
- Buffalo, NY
- NPI 1720036593
-
- General Acute Care Hospital
- Klamath Falls, OR
- NPI 1659340370
-
- Pharmacy
- Williamsville, NY
- NPI 1871379586
-
- General Acute Care Hospital
- Buffalo, NY
- NPI 1548315401
-
- Medical Physician Assistant
- Juneau, AK
- NPI 1053619098
-
- General Acute Care Hospital
- Windber, PA
- NPI 1275620536
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Buffalo, NY
- NPI 1548315401
-
- General Acute Care Hospital
- Juneau, AK
- NPI 1891849261
-
- General Acute Care Hospital
- Klamath Falls, OR
- NPI 1659340370
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1139184000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1781136000000",
"number": "1114999083",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "ELM AND CARLTON ST",
"city": "BUFFALO",
"state": "NY",
"postal_code": "142630001",
"telephone_number": "716-845-2300",
"fax_number": "716-845-3519"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "ELM AND CARLTON ST",
"city": "BUFFALO",
"state": "NY",
"postal_code": "142630001",
"telephone_number": "716-845-2300",
"fax_number": "716-845-3519"
}
],
"practiceLocations": [
{
"address_1": "2610 Uhrmann Rd",
"address_purpose": "LOCATION",
"city": "Klamath Falls",
"state": "OR",
"postal_code": "976011123",
"country_code": "US",
"telephone_number": "541-274-4171",
"fax_number": "541-274-4174",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "CHATTA",
"first_name": "GURKAMAL",
"middle_name": "SINGH",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-06",
"last_updated": "2026-06-11",
"certification_date": "2026-06-11",
"status": "A"
},
"taxonomies": [
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "WA",
"license": "MD00025531",
"primary": false
},
{
"code": "174400000X",
"taxonomy_group": "",
"desc": "Specialist",
"state": "PA",
"license": "MD417845",
"primary": false
},
{
"code": "207RX0202X",
"taxonomy_group": "",
"desc": "Internal Medicine, Medical Oncology",
"state": "OR",
"license": "MD228838",
"primary": false
},
{
"code": "207RX0202X",
"taxonomy_group": "",
"desc": "Internal Medicine, Medical Oncology",
"state": "NY",
"license": "284329",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "RAILROAD MEDICARE",
"identifier": "P01023152",
"state": "WA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "001748651",
"state": "PA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "1114999083",
"state": "WA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Buffalo, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 11, 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.