Individual provider Active NPI

Rachel Maria Williams, CRNA

  • Certified Registered Nurse Anesthetist
  • Charleston, SC
National Provider Identifier
1558874958
Registry record updated Feb 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
21668 Issued in SC
Practice address
171 Ashley Ave
Charleston, SC 29425-7112
Phone
(843) 792-1414
NPI assigned
Nov 8, 2017
Last updated
Feb 11, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 11, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 21668 SC Primary
Student in an Organized Health Care Education/Training Program 390200000X 217790 SC

Addresses

Primary practice location

171 Ashley Ave
Charleston, SC 29425-7112

Mailing address

PO Box 751461
Charlotte, NC 28275-1461
Phone (843) 792-6200

Other practice location 1

7 Independence Pt Ste 300
Greenville, SC 29615-4569
Phone (864) 522-3700

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in SC

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20180323000628 SC Practitioner - Certified Registered Nurse Anesthetist (Crna) 9335401736 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Kershaw Anesthesia LLCGroup PAC ID 2567764384, 18 clinicians
Trident Anesthesia Group LLCGroup PAC ID 5294631545, 121 clinicians

Practice addresses (Care Compare)

1315 Roberts St
Camden, SC 29020-3737
Phone (803) 713-6376

171 Ashley Ave
Charleston, SC 29425-8908
Phone (843) 792-1414

7 Independence PT
Suite 300
Greenville, SC 29615-4569
Phone (864) 522-3700

9330 Medical Plaza Dr
Charleston, SC 29406-9104
Phone (843) 797-7000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
90.15 of 100Reported as group
Quality
83.18
Promoting interoperability
98
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse

State licenses

LicenseStateTypeSpecialty
217790SCMDStudent in an Organized Health Care Education/Training Program

Practice roles

OrganizationSpecialtyStatusNew patients
Prisma Health University Medical Group CurrentSince Feb 23, 2026 Accepting new patients
Kershaw Anesthesia, LLC CurrentSince Aug 1, 2025 Accepting new patients
Medical University Hospital Authority Nurse Anesthetist, Certified Registered CurrentSince Jan 8, 2020 Accepting new patients
Trident Anesthesia Group, LLC CurrentSince Mar 5, 2018 Accepting new patients
Prisma Health University Medical Group CurrentSince Feb 23, 2026 Accepting new patients
Medical University Hospital Authority CurrentSince Jan 8, 2020 Accepting new patients

Locations

1315 Roberts St
Camden, SC 29020
Phone (803) 432-4311

1 Poston Rd
Ste 110
Charleston, SC 29407
Phone (843) 876-1347

171 Ashley Ave
Charleston, SC 29425
Phone (843) 792-2123

67 Creekside Park Ct
Greenville, SC 29615
Phone (864) 242-4602

7 Independence Pt
Ste 300
Greenville, SC 29615
Phone (864) 522-3700

423 Barony St
Moncks Corner, SC 29461

9263 Medical Plaza Dr
Ste E
North Charleston, SC 29406
Phone (843) 572-1228

9313 Medical Plaza Dr
Ste 102
North Charleston, SC 29406
Phone (843) 572-1228

9330 Medical Plaza Dr
North Charleston, SC 29406
Phone (843) 554-6366

Organizations & group practices 7

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.

Hospital & facility affiliations 8

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1510099200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770768000000",
    "number": "1558874958",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 751461",
            "city": "CHARLOTTE",
            "state": "NC",
            "postal_code": "282751461",
            "telephone_number": "843-792-6200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "171 ASHLEY AVE",
            "city": "CHARLESTON",
            "state": "SC",
            "postal_code": "294257112",
            "telephone_number": "843-792-1414"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "7 Independence Pt Ste 300",
            "address_purpose": "LOCATION",
            "city": "Greenville",
            "state": "SC",
            "postal_code": "296154569",
            "country_code": "US",
            "telephone_number": "864-522-3700",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "RACHEL",
        "middle_name": "MARIA",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-11-08",
        "last_updated": "2026-02-11",
        "certification_date": "2026-02-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "SC",
            "license": "21668",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "SC",
            "license": "217790",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Charleston, SC

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 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.
  • 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.

Verify at the official NPI Registry.