Callie Elizabeth Williams, DNP, AGNP-C

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

R242805 Issued in MD

Practice address

6565 N Charles St
Towson, MD 21204-6800

Phone

(443) 849-3400

NPI assigned

Jul 28, 2025

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

Enrolled in MD

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 1

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Greater Baltimore Medical CenterGroup PAC ID 1759276975, 350 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Greater Baltimore Medical Center Hospital, Baltimore, MD, CCN 210044

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

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.

• Greater Baltimore Medical Center, Inc

  • Obstetrics & Gynecology Physician
  • Baltimore, MD
  • NPI 1891855763
  Medicare reassignment Care Compare group
• Greater Baltimore Medical Center, Inc.

  • Vascular Surgery Physician
  • Baltimore, MD
  • NPI 1467338764
  NPD
• Greater Baltimore Medical Center, Inc.

  • Sleep Medicine (Internal Medicine) Physician
  • Baltimore, MD
  • NPI 1538029731
  NPD

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

• Greater Baltimore Medical Center, Inc.

  • General Acute Care Hospital
  • Baltimore, MD
  • NPI 1255372397
  Care Compare affiliation

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

{
    "created_epoch": "1753660800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769040000000",
    "number": "1336022417",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6565 N CHARLES ST",
            "city": "TOWSON",
            "state": "MD",
            "postal_code": "212046800",
            "telephone_number": "443-849-3400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6565 N CHARLES ST",
            "city": "TOWSON",
            "state": "MD",
            "postal_code": "212046800",
            "telephone_number": "443-849-3400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "CALLIE",
        "middle_name": "ELIZABETH",
        "credential": "DNP, AGNP-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-07-28",
        "last_updated": "2026-01-22",
        "certification_date": "2026-01-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MD",
            "license": "R242805",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alisa Williams
• Allexus Williams
• Ashley Williams
• Boluwatife Williams, RPH
• Brandon Williams
• Denise Williams
• Eric Howard Williams, M.D.
• Gabrielle R Williams, CLC
• Guy Cameron Williams, M.D.
• Hannah Jane Williams

• Nurse Practitioner in Towson, MD
• Providers in Towson, MD by specialty
• Nurse Practitioner in Maryland

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