Shannon Olexa-Fowler, CRNP

Primary specialty

Adult Health Nurse PractitionerTaxonomy code 363LA2200X

License

R239349 Issued in MD

Practice address

985 Prince Frederick Blvd
Prince Frederick, MD 20678-3128

Phone

(410) 535-2005

NPI assigned

Aug 31, 2026

Last updated

Oct 26, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Calvert Digestive Disease Associates, Endoscopy and Surgery Center LLC

  • Endoscopy Clinic/Center
  • Prince Frederick, MD
  • NPI 1699219766
  NPD (past)

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

{
    "created_epoch": "1788134400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1792972800000",
    "number": "1336057595",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "985 PRINCE FREDERICK BLVD",
            "city": "PRINCE FREDERICK",
            "state": "MD",
            "postal_code": "206783128",
            "telephone_number": "410-535-2005",
            "fax_number": "410-535-4850"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "985 PRINCE FREDERICK BLVD",
            "city": "PRINCE FREDERICK",
            "state": "MD",
            "postal_code": "206783128",
            "telephone_number": "410-535-2005"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OLEXA-FOWLER",
        "first_name": "SHANNON",
        "credential": "CRNP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-08-31",
        "last_updated": "2026-10-26",
        "certification_date": "2026-10-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "MD",
            "license": "R239349",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stephanie Marie Nunez, DDS, PHD
• Paul Blake O'Brien, M.D.
• Julie O'Keefe, MD
• Gary M. O'Shea, D.D.S.
• Oasis Nursing & Rehab LLC
• Kristen Olivo, LCPC
• Tamera Ireland Olson, LCSW-C
• Orthocare Solutions Inc
• Darlyn Rose Osborn
• Outreach Recovery II

• Adult Health Nurse Practitioner in Prince Frederick, MD
• Providers in Prince Frederick, MD by specialty
• Adult Health Nurse Practitioner in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 26, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.