Margaret Elizabeth Ritchie, MMS, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

0010-16368 Issued in NC

Practice address

1853 Health Care Dr
Rock Hill, SC 29732

Phone

(803) 329-7772

NPI assigned

Feb 14, 2026

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Specialty

Physician Assistant

Education

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

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.

• Carolina Blood and Cancer Care Associates, P.a.

  • Specialist
  • Rock Hill, SC
  • NPI 1013002013
  NPD

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

{
    "created_epoch": "1771027200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776816000000",
    "number": "1104778703",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1853 HEALTH CARE DR",
            "city": "ROCK HILL",
            "state": "SC",
            "postal_code": "29732",
            "telephone_number": "803-329-7772",
            "fax_number": "803-329-9821"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1853 HEALTH CARE DR",
            "city": "ROCK HILL",
            "state": "SC",
            "postal_code": "29732",
            "telephone_number": "803-329-7772"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RITCHIE",
        "first_name": "MARGARET",
        "middle_name": "ELIZABETH",
        "credential": "MMS, PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-02-14",
        "last_updated": "2026-04-22",
        "certification_date": "2026-04-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NC",
            "license": "0010-16368",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Right Steps LLC
• Right Steps LLC
• Debra Nicole Riley, LISW-CP
• Meleane Riley
• Marjorie J Risser, DMD
• Rite Aid Pharmacy
• Ariana Skye Rivera
• Celine Rivers, FNP-C, PMHNP-BC
• Gabrielle Rivers, PA-C
• Riverview Family Medicine, LLC

• Physician Assistant in Rock Hill, SC
• Providers in Rock Hill, SC by specialty
• Physician Assistant in South Carolina

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 22, 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.

Verify at the official NPI Registry.