Active NPI
Casey Kathleen Paterson, MD
- Surgery Physician
- Grand Rapids, MI
National Provider Identifier
1235759184
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Colon & Rectal Surgery Physician
- License
- 86435
- Practice address
- 538 Litchfield St Ste 201
Torrington, CT 06790-6669 - Phone
- (860) 489-7017
- NPI assigned
- Apr 21, 2020
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Colon & Rectal Surgery Physician | 208C00000X | 86435 | CT | Primary |
| Colon & Rectal Surgery Physician | 208C00000X | 4301514216 | MI | |
| Surgery Physician | 208600000X | MD488426 | PA |
Addresses
Primary practice location
538 Litchfield St Ste 201
Torrington, CT 06790-6669
Mailing address
4100 Lake Dr SE Ste 205
Grand Rapids, MI 49546-8292
Phone (616) 267-7100
Other practice location 1
100 Grand St
New Britain, CT 06052-2016
Phone (860) 224-5011
Other practice location 2
540 Litchfield St
Torrington, CT 06790-6679
Phone (860) 489-7017
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in PA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20200610000559 | PA | Order and Referring Only - General Surgery | 3274954771 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD488426 | PA | MD | Surgery Physician |
| 4301514216 | MI | MD | Colon & Rectal Surgery Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1587427200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789689600000",
"number": "1235759184",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4100 LAKE DR SE STE 205",
"city": "GRAND RAPIDS",
"state": "MI",
"postal_code": "495468292",
"telephone_number": "616-267-7100"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "538 LITCHFIELD ST STE 201",
"city": "TORRINGTON",
"state": "CT",
"postal_code": "067906669",
"telephone_number": "860-489-7017"
}
],
"practiceLocations": [
{
"address_1": "100 Grand St",
"address_purpose": "LOCATION",
"city": "New Britain",
"state": "CT",
"postal_code": "060522016",
"country_code": "US",
"telephone_number": "860-224-5011",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "540 Litchfield St",
"address_purpose": "LOCATION",
"city": "Torrington",
"state": "CT",
"postal_code": "067906679",
"country_code": "US",
"telephone_number": "860-489-7017",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "PATERSON",
"first_name": "CASEY",
"middle_name": "KATHLEEN",
"name_prefix": "Ms.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-04-21",
"last_updated": "2026-09-18",
"certification_date": "2026-09-18",
"status": "A"
},
"taxonomies": [
{
"code": "208C00000X",
"taxonomy_group": "",
"desc": "Colon & Rectal Surgery",
"state": "CT",
"license": "86435",
"primary": true
},
{
"code": "208C00000X",
"taxonomy_group": "",
"desc": "Colon & Rectal Surgery",
"state": "MI",
"license": "4301514216",
"primary": false
},
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "PA",
"license": "MD488426",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Grand Rapids, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 18, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.