Active NPI
Mark Leslie Witkowski, DO
- Surgery Physician
- Murrells Inlet, SC
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgery Physician
- License
- R9182
- Practice address
- 4040 Highway 17
Suite 202
Murrells Inlet, SC 29576-5098 - Phone
- (843) 652-8390
- Fax
- (843) 652-8391
- NPI assigned
- Jun 6, 2011
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Surgery Physician | 208600000X | R9182 | IA | Primary |
Addresses
Primary practice location
4040 Highway 17
Suite 202
Murrells Inlet, SC 29576-5098
Mailing address
PO Box 421718
Georgetown, SC 29442-4203
Phone (843) 527-7000
Other practice location 1
1014 Huger DR
Georgetown, SC 29440-3322
Phone (843) 520-8780
Other practice location 2
2200 Crow LN Ste 303B
Myrtle Beach, SC 29577-1663
Phone (843) 520-8780
Other practice location 3
4040 Highway 17 Unit 104
Murrells Inlet, SC 29576-5098
Phone (843) 652-8390
Other practice location 4
606 Black River Rd Ste 301
Georgetown, SC 29440-3304
Phone (843) 652-8390
Electronic endpoints 4
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | mwitkowski447872@direct.musc.edu | Direct | Georgetown Physician Associates, LLC |
| Direct Messaging Address | mwitkowski447872@direct.musc.edu | Direct | Georgetown Physician Associates, LLC |
| Direct Messaging Address | mwitkowski447872@direct.musc.edu | Direct | Georgetown Physician Associates, LLC |
| Direct Messaging Address | mwitkowski447872@direct.musc.edu | Direct | Georgetown Physician Associates, LLC |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in SC
- 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
- General Surgery
- Education
- Kansas City University of Med & Biosciences, College of Osteo Med, 2011
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1011 N Fraser St
Georgetown, SC 29440-2848
Phone (843) 527-3428
Hospital & facility affiliations
- Tidelands Waccamaw Community Hospital
- Tidelands Georgetown Memorial Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 75 of 100
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 31 |
| Hernia repair - groin (open) | 1-10 |
| Hernia repair (minimally invasive) | 42 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 19 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Georgetown Physician Associates, LLC | Current | Accepting new patients | |
| Georgetown Physician Associates LLC | Surgery | Current | Accepting new patients |
| Georgetown Physician Associates, LLC | Current | Accepting new patients | |
| Georgetown Physician Services, LLC | Past | Accepting new patients |
Locations
1011 N Fraser St
Georgetown, SC 29440
Phone (803) 527-3428
606 Black River Rd
Ste 301
Georgetown, SC 29440
Phone (843) 527-3428
1014 Huger Dr
Georgetown, SC 29440
Phone (843) 652-8390
4040 Highway 17
Unit 104
Murrells Inlet, SC 29576
Phone (843) 652-8150
2347 S Highway 17
Murrells Inlet, SC 29576
Phone (843) 357-2443
4040 Highway 17
Unit 202
Murrells Inlet, SC 29576
Phone (843) 652-8390
2200 Crow Ln
Ste 303B
Myrtle Beach, SC 29577
Phone (843) 520-8780
2200 Crow Ln
Ste 102
Myrtle Beach, SC 29577
Phone (843) 520-8217
12117 Ocean Hwy
Pawleys Island, SC 29585
Phone (843) 237-8231
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 and National Provider Directory roles.
-
- Family Medicine Physician
- Murrells Inlet, SC
- NPI 1235475930
-
- Obstetrics & Gynecology Physician
- Georgetown, SC
- NPI 1548501976
-
- Family Medicine Physician
- Pawleys Island, SC
- NPI 1962691402
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Georgetown, SC
- NPI 1982604021
-
- General Acute Care Hospital
- Murrells Inlet, SC
- NPI 1972503910
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1307318400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764720000000",
"number": "1982998100",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 421718",
"city": "GEORGETOWN",
"state": "SC",
"postal_code": "294424203",
"telephone_number": "843-527-7000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4040 HIGHWAY 17",
"address_2": "SUITE 202",
"city": "MURRELLS INLET",
"state": "SC",
"postal_code": "295765098",
"telephone_number": "843-652-8390",
"fax_number": "843-652-8391"
}
],
"practiceLocations": [
{
"address_1": "1014 Huger DR",
"address_purpose": "LOCATION",
"city": "Georgetown",
"state": "SC",
"postal_code": "294403322",
"country_code": "US",
"telephone_number": "843-520-8780",
"fax_number": "843-652-8399",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "2200 Crow LN Ste 303B",
"address_purpose": "LOCATION",
"city": "Myrtle Beach",
"state": "SC",
"postal_code": "295771663",
"country_code": "US",
"telephone_number": "843-520-8780",
"fax_number": "843-652-8399",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "4040 Highway 17 Unit 104",
"address_purpose": "LOCATION",
"city": "Murrells Inlet",
"state": "SC",
"postal_code": "295765098",
"country_code": "US",
"telephone_number": "843-652-8390",
"fax_number": "843-652-8399",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "606 Black River Rd Ste 301",
"address_purpose": "LOCATION",
"city": "Georgetown",
"state": "SC",
"postal_code": "294403304",
"country_code": "US",
"telephone_number": "843-652-8390",
"fax_number": "843-652-8399",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "WITKOWSKI",
"first_name": "MARK",
"middle_name": "LESLIE",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2011-06-06",
"last_updated": "2025-12-03",
"certification_date": "2025-12-03",
"status": "A"
},
"taxonomies": [
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "IA",
"license": "R9182",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "mwitkowski447872@direct.musc.edu",
"affiliation": "Y",
"affiliationName": "Georgetown Physician Associates, LLC",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "CSV",
"contentTypeDescription": "CSV",
"address_1": "4040 Highway 17 Unit 104",
"city": "Murrells Inlet",
"state": "SC",
"country_code": "US",
"postal_code": "295765098",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "mwitkowski447872@direct.musc.edu",
"affiliation": "Y",
"affiliationName": "Georgetown Physician Associates, LLC",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "CSV",
"contentTypeDescription": "CSV",
"address_1": "1014 Huger DR",
"city": "Georgetown",
"state": "SC",
"country_code": "US",
"postal_code": "294403322",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "mwitkowski447872@direct.musc.edu",
"affiliation": "Y",
"affiliationName": "Georgetown Physician Associates, LLC",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "CSV",
"contentTypeDescription": "CSV",
"address_1": "606 Black River Rd Ste 301",
"city": "Georgetown",
"state": "SC",
"country_code": "US",
"postal_code": "294403304",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "mwitkowski447872@direct.musc.edu",
"affiliation": "Y",
"affiliationName": "Georgetown Physician Associates, LLC",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "CSV",
"contentTypeDescription": "CSV",
"address_1": "2200 Crow LN Ste 303B",
"city": "Myrtle Beach",
"state": "SC",
"country_code": "US",
"postal_code": "295771663",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Murrells Inlet, SC
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 3, 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.