Active NPI
Sajin Mathew Karakattu, M.D.
- Pulmonary Disease Physician
- Marietta, GA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pulmonary Disease Physician
- License
- 88169
- Practice address
- 3747 Roswell Rd Ste 215
Marietta, GA 30062-6228 - Phone
- (770) 422-1372
- Fax
- (770) 973-4425
- NPI assigned
- Jul 22, 2009
- Last updated
- Jan 13, 2026
- 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 8
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 48888 | TN | |
| Family Medicine Physician | 207Q00000X | 0101251018 | VA | |
| Family Medicine Physician | 207Q00000X | 48888 | TN | |
| Internal Medicine Physician | 207R00000X | MD48888 | TN | |
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | 88169 | GA | |
| Pulmonary Disease Physician | 207RP1001X | 88169 | GA | Primary |
| Hospitalist Physician | 208M00000X | 48888 | TN | |
| Hospitalist Physician | 208M00000X | 0101251018 | VA |
Addresses
Primary practice location
3747 Roswell Rd Ste 215
Marietta, GA 30062-6228
Mailing address
1664 Mulkey Rd
Austell, GA 30106-1114
Phone (770) 422-1372
Other practice location 1
1664 Mulkey Rd
Austell, GA 30106-1114
Phone (770) 422-1372
Other practice location 2
851 Locust St
Rogersville, TN 37857-2407
Phone (423) 272-5564
Other practice location 3
4 Sheridan Sq Ste 200
Kingsport, TN 37660-7435
Phone (423) 246-7931
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | skarakattu420822@directwellstar.org | Health Information Exchange (HIE) |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in VA, GA
- 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
- Pulmonary Disease
- Education
- Other, 2005
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
2540 Windy Hill Rd
Marietta, GA 30067-8605
Phone (770) 644-1570
2540 Windy Hill Serd
Marietta, GA 30067-8605
Phone (770) 644-1274
2550 Windy Hill Rd SE
Suite 220
Marietta, GA 30067-8605
Phone (404) 321-9900
3747 Roswell Rd
Suite 215
Marietta, GA 30062-6228
Phone (770) 422-1372
3950 Austell Rd
Austell, GA 30106-1121
Phone (770) 732-4022
5150 Stilesboro N W Rd
Suite 220
Kennesaw, GA 30152-7742
Phone (770) 424-8222
625 Church Nest
Marietta, GA 30060-1101
Phone (770) 422-2004
677 Church Nest
Marietta, GA 30060-1101
677 Church St NE
Suite 100P
Marietta, GA 30060-1101
Phone (470) 793-8585
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 48888 | TN | MD | Family Medicine Physician |
| MD48888 | TN | MD | Internal Medicine Physician |
| 0101251018 | VA | MD | Hospitalist Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Wellstar Medical Group, LLC | Current | Accepting new patients | |
| Wellstar Medical Group, LLC | Family Medicine | Current | Accepting new patients |
| Medical Education Assistance Corporation | Internal Medicine | Past | Accepting new patients |
Locations
1664 Mulkey Rd
Austell, GA 30106
Phone (770) 941-7709
5150 Stilesboro Rd NW
Ste 220
Kennesaw, GA 30152
Phone (770) 424-8222
3747 Roswell Rd
Ste 215
Marietta, GA 30062
805 Sandy Plains Rd
Marietta, GA 30066
Phone (770) 792-1616
Interoperability endpoints
- skarakattu420822@directwellstar.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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba WellStar Family Medicine ACW
- Family Medicine Physician
- Kennesaw, GA
- NPI 1558664003
-
- Multi-Specialty Clinic/Center
- Marietta, GA
- NPI 1275992240
-
- Internal Medicine Physician
- Kingsport, TN
- NPI 1245509280
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Wellstar Cobb Hospital
- General Acute Care Hospital
- Austell, GA
- NPI 1467420448
-
dba Wellstar Kennestone Hospital
- General Acute Care Hospital
- Marietta, GA
- NPI 1649248626
-
dba Wellstar Windy Hill Hospital
- Long Term Care Hospital
- Marietta, GA
- NPI 1700853041
Long-term care hospital
-
dba Wellstar Paulding Hospital
- General Acute Care Hospital
- Hiram, GA
- NPI 1457329435
-
dba WellStar North Fulton Hospital
- General Acute Care Hospital
- Roswell, GA
- NPI 1750312997
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1248220800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1768262400000",
"number": "1619107794",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1664 MULKEY RD",
"city": "AUSTELL",
"state": "GA",
"postal_code": "301061114",
"telephone_number": "770-422-1372",
"fax_number": "770-999-2599"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3747 ROSWELL RD STE 215",
"city": "MARIETTA",
"state": "GA",
"postal_code": "300626228",
"telephone_number": "770-422-1372",
"fax_number": "770-973-4425"
}
],
"practiceLocations": [
{
"address_1": "1664 Mulkey Rd",
"address_purpose": "LOCATION",
"city": "Austell",
"state": "GA",
"postal_code": "301061114",
"country_code": "US",
"telephone_number": "770-422-1372",
"fax_number": "770-999-2599",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "851 Locust St",
"address_purpose": "LOCATION",
"city": "Rogersville",
"state": "TN",
"postal_code": "378572407",
"country_code": "US",
"telephone_number": "423-272-5564",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "4 Sheridan Sq Ste 200",
"address_purpose": "LOCATION",
"city": "Kingsport",
"state": "TN",
"postal_code": "376607435",
"country_code": "US",
"telephone_number": "423-246-7931",
"fax_number": "423-246-1906",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "KARAKATTU",
"first_name": "SAJIN MATHEW",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2009-07-22",
"last_updated": "2026-01-13",
"certification_date": "2026-01-13",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "TN",
"license": "48888",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "VA",
"license": "0101251018",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "TN",
"license": "48888",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TN",
"license": "MD48888",
"primary": false
},
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "GA",
"license": "88169",
"primary": false
},
{
"code": "207RP1001X",
"taxonomy_group": "",
"desc": "Internal Medicine, Pulmonary Disease",
"state": "GA",
"license": "88169",
"primary": true
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "TN",
"license": "48888",
"primary": false
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "VA",
"license": "0101251018",
"primary": false
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "skarakattu420822@directwellstar.org",
"affiliation": "N",
"use": "HIE",
"useDescription": "Health Information Exchange (HIE)",
"address_1": "1664 Mulkey Rd",
"city": "Austell",
"state": "GA",
"country_code": "US",
"postal_code": "301061114",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Marietta, GA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 13, 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.