NPIMap

Individual provider Active NPI

Emily Lyn Mason, PA-C

  • Physician Assistant
  • Charleston, SC
National Provider Identifier
1891424438
Registry record updated Aug 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
4503 Issued in SC
Practice address
171 Ashley Ave
Charleston, SC 29425-0100
Phone
(843) 792-1414
NPI assigned
Jun 8, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 21, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 4503 SC Primary

Addresses

Primary practice location

171 Ashley Ave
Charleston, SC 29425-0100

Mailing address

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

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address direct@direct.musc.edu Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in SC
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20220907003898 SC Practitioner - Physician Assistant 2961886163 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
University of South Carolina School of Medicine, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

1101 Waterline St
Charleston, SC 29492-9049
Phone (843) 792-1414

1106 Chuck Dawley Blvd
Mount Pleasant, SC 29464-4183
Phone (843) 792-1414

1122 Chuck Dawley Blvd
Mt Pleasant, SC 29464-4183
Phone (843) 792-6200

1600 Midtown Ave
Mount Pleasant, SC 29464-3771
Phone (843) 792-1414

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

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

2060 Sam Rittenberg Blvd
Charleston, SC 29407-4616
Phone (843) 792-1414

Hospital & facility affiliations

  • Musc Medical Center Hospital, Charleston, SC, CCN 420004
  • Tidelands Waccamaw Community Hospital Hospital, Murrells Inlet, SC, CCN 420098
  • Beaufort County Memorial Hospital Hospital, Beaufort, SC, CCN 420067
  • Musc Health Florence Medical Center Hospital, Florence, SC, CCN 420091

Merit-based Incentive Payment System (MIPS)

Final score
79.02 of 100Reported as group
Quality
62.41
Promoting interoperability
99
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
University Medical Associates of the Medical University of South Carol Physician Assistant CurrentSince Aug 11, 2022 Accepting new patients

Locations

1101 Waterline St
Charleston, SC 29492
Phone (843) 985-4700

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

Interoperability endpoints

  • Direct secure messaging: emason369903@direct.musc.edu

Organizations & group practices 2

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.

Hospital & facility affiliations 9

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": "1654646400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787270400000",
    "number": "1891424438",
    "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": "294250100",
            "telephone_number": "843-792-1414"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASON",
        "first_name": "EMILY",
        "middle_name": "LYN",
        "name_prefix": "Ms.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-06-08",
        "last_updated": "2026-08-21",
        "certification_date": "2026-08-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "SC",
            "license": "4503",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "direct@direct.musc.edu",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "171 Ashley Ave",
            "city": "Charleston",
            "state": "SC",
            "country_code": "US",
            "postal_code": "294250100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Charleston, SC

Sources for this page

Verify at the official NPI Registry.