Allyse Marie Ortega, FNP-C, AGACNP, RN

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

2017001487 Issued in MO

Practice address

844 Waterbury Falls Dr Ste B
O Fallon, MO 63368-2208

Phone

(636) 385-5556

Fax

(636) 614-2093

NPI assigned

Dec 30, 2016

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in MO, IL2 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, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Registered Nurse

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.

• Cep America, LLC

  • Emergency Medicine Physician
  • Saint Louis, MO
  • NPI 1619332046
  Medicare reassignment NPD
• Complete Infusion Solutions LLC

  • Internal Medicine Physician
  • O Fallon, MO
  • NPI 1386372514
  Medicare reassignment NPD
• South St Louis Medical Associates LLC

  • Internal Medicine Physician
  • Saint Louis, MO
  • NPI 1750681151
  Medicare reassignment NPD
• Total Access Urgent Care, PC

  • Urgent Care Clinic/Center
  • Saint Louis, MO
  • NPI 1962684886
  Medicare reassignment NPD
• Tauc Il, PC

  • Urgent Care Clinic/Center
  • Collinsville, IL
  • NPI 1487401709
  Medicare reassignment NPD
• Mercy East Ambulatory Services LLC

  • Urgent Care Clinic/Center
  • Chesterfield, MO
  • NPI 1134673148
  Medicare reassignment
• Cep America LLC

  • Emergency Medicine Physician
  • Bridgeton, MO
  • NPI 1851946370
  NPD
• Total Access Urgent Care, PC

  • Urgent Care Clinic/Center
  • Saint Louis, MO
  • NPI 1952729402
  NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Fort Lauderdale, FL
  • NPI 1700747946
  NPD
• Cep America - California

  • Emergency Medicine Physician
  • Pomona, CA
  • NPI 1740235258
  NPD (past)

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

{
    "created_epoch": "1483056000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769472000000",
    "number": "1982149878",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "844 WATERBURY FALLS DR STE B",
            "city": "O FALLON",
            "state": "MO",
            "postal_code": "633682208",
            "telephone_number": "636-385-5556",
            "fax_number": "636-614-2093"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "844 WATERBURY FALLS DR STE B",
            "city": "O FALLON",
            "state": "MO",
            "postal_code": "633682208",
            "telephone_number": "636-385-5556",
            "fax_number": "636-614-2093"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9556 Manchester Rd",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631191313",
            "country_code": "US",
            "telephone_number": "314-373-5740",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "17 Clarkson Rd",
            "address_purpose": "LOCATION",
            "city": "Ellisville",
            "state": "MO",
            "postal_code": "630112215",
            "country_code": "US",
            "telephone_number": "636-552-9079",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "27 The Boulevard Saint Louis",
            "address_purpose": "LOCATION",
            "city": "Richmond Heights",
            "state": "MO",
            "postal_code": "631171118",
            "country_code": "US",
            "telephone_number": "636-385-5556",
            "fax_number": "636-614-2093",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ORTEGA",
        "first_name": "ALLYSE",
        "middle_name": "MARIE",
        "credential": "FNP-C, AGACNP, RN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-12-30",
        "last_updated": "2026-01-27",
        "certification_date": "2026-01-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MO",
            "license": "2017001487",
            "primary": true
        },
        {
            "code": "163WE0003X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Emergency",
            "state": "MO",
            "license": "2010020396",
            "primary": false
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "MO",
            "license": "2023000801",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ofallon Optometric Clinic
• Offshift Inc
• Oleary Chiropractic Healing and Wellness
• Robert S Olson Jr., DDS MS
• Debra L Omara
• Jenna Osseck, O.D.
• Alison H Oswald, MD
• Macie Oswald, RD, RDN
• Raymond James Ottomeyer III, D.C.
• Outpatient Surgery Services

• Family Nurse Practitioner in O Fallon, MO
• Providers in O Fallon, MO by specialty
• Family Nurse Practitioner in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 27, 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.