Mary Clark Magill, NP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

R130834 Issued in MD

Practice address

22590 Shady Court
California, MD 20619-5009

Phone

(301) 373-7700

Fax

(301) 373-9197

NPI assigned

Aug 1, 2017

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MD, DC2 enrollments

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.

Enrollment records 2

Specialty

Nurse Practitioner

Education

Other, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Medstar Medical Group - Southern Maryland LLCGroup PAC ID 1355667056, 241 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Medstar Saint Mary'S Hospital Hospital, Leonardtown, MD, CCN 210028

Merit-based Incentive Payment System (MIPS)

Final score

81.41 of 100Reported as group

Quality

61.45

Promoting interoperability

96

Improvement activities

40

Cost

79.91

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mary.magillcrnp.p2@direct.msmg.nextgenshare.com

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.

• Medstar Medical Group - Southern Maryland LLC

  • Internal Medicine Physician
  • Hollywood, MD
  • NPI 1831592211

  DC

  Medicare reassignment Care Compare group NPD
• Medstar Medical Group - Southern Maryland LLC

  • Ambulatory Surgical Clinic/Center
  • Waldorf, MD
  • NPI 1730571118
  NPD
• Frederick Health Hospital Inc

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)
• Medstar Southern Maryland Physicians, LLC

  • Obstetrics & Gynecology Physician
  • White Plains, MD
  • NPI 1366644197
  NPD (past)

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

• St Marys Hospital of St Marys County Inc

  • General Acute Care Hospital
  • Leonardtown, MD
  • NPI 1780650473
  Care Compare affiliation

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

{
    "created_epoch": "1501545600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787097600000",
    "number": "1194249177",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24035 THREE NOTCH RD",
            "city": "HOLLYWOOD",
            "state": "MD",
            "postal_code": "206364871",
            "telephone_number": "301-373-7900",
            "fax_number": "301-373-6900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22590 SHADY COURT",
            "city": "CALIFORNIA",
            "state": "MD",
            "postal_code": "206195009",
            "telephone_number": "301-373-7700",
            "fax_number": "301-373-9197"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAGILL",
        "first_name": "MARY",
        "middle_name": "CLARK",
        "credential": "NP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2017-08-01",
        "last_updated": "2026-08-19",
        "certification_date": "2026-08-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MD",
            "license": "R130834",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MD",
            "license": "R130834",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "444072200",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Mariely Lopez Perez
• Kara Lowe
• Mary Ann Lucero-Pierce, CRNP
• Luxottica Retail North America Inc
• Jessica Lynch, RBT
• Danielle Malhotra, CRNP
• Heidi Marlatt, MA, LMFT
• Keira Marshall
• Alauna Martinez
• Maryland CVS Pharmacy LLC

• Family Nurse Practitioner in California, MD
• Providers in California, MD by specialty
• Family Nurse Practitioner in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 19, 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.