Olivia Jacquelyn Warner, FNP-C

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

R223054 Issued in MD

Practice address

25 Kent Town Market
Chester, MD 21619-2632

Phone

(667) 343-9501

NPI assigned

Aug 27, 2025

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

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, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Umms Ambulatory Care LLCGroup PAC ID 8426461427, 53 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: owarner1317737@direct.umm.edu

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.

• Umms Ambulatory Care LLC

  • Urgent Care Clinic/Center
  • Denton, MD
  • NPI 1487251997
  Medicare reassignment Care Compare group NPD
• Umms Ambulatory Care LLC

  • Urgent Care Clinic/Center
  • Baltimore, MD
  • NPI 1275130775
  NPD
• Umms Ambulatory Care LLC

  • Urgent Care Clinic/Center
  • Chester, MD
  • NPI 1801554829
  NPD
• Umms Ambulatory Care LLC

  • Urgent Care Clinic/Center
  • Glen Burnie, MD
  • NPI 1801651674
  NPD

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

{
    "created_epoch": "1756252800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759449600000",
    "number": "1275412033",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "25 KENT TOWN MARKET",
            "city": "CHESTER",
            "state": "MD",
            "postal_code": "216192632",
            "telephone_number": "667-343-9501"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "25 KENT TOWN MARKET",
            "city": "CHESTER",
            "state": "MD",
            "postal_code": "216192632",
            "telephone_number": "667-343-9501"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WARNER",
        "first_name": "OLIVIA",
        "middle_name": "JACQUELYN",
        "credential": "FNP-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-08-27",
        "last_updated": "2025-10-03",
        "certification_date": "2025-10-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "HI",
            "license": "APRN-5416-0",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MD",
            "license": "R223054",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Veritas Dental Institute - Kent Island
• Walgreen Co
• Walgreen Co
• Diane Walker, NURSE PRACTITIONER
• Valerie Elizabeth Wallace, NURSE PRACTITIONER
• We Care Clinic
• We Care Clinic
• Elizabeth Welch, RPH
• Ian West, MPT
• Alyssa Anne Wolfe, DDS

• Family Nurse Practitioner in Chester, MD
• Providers in Chester, 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 Oct 3, 2025; 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.