Maddisson Ann Haslett, NP

Primary specialty

Gerontology Nurse PractitionerTaxonomy code 363LG0600X

License

2022017958 Issued in MO

Practice address

12639 Old Tesson Rd Ste 115
Saint Louis, MO 63128-2786

Phone

(314) 849-0311

Fax

(314) 849-4423

NPI assigned

May 23, 2022

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

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MO

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, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Signature Medical Group IncGroup PAC ID 4880598291, 40 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Hospital South Hospital, Saint Louis, MO, CCN 260077
• SSM Health Rehabilitation Hospital Inpatient rehabilitation facility, Richmond Heights, MO, CCN 263031

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: maddisson.haslett@direct.signature.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.

• Signature Medical Group, Inc

  • Orthopaedic Surgery Physician
  • Saint Louis, MO
  • NPI 1871542761

  MO

  Medicare reassignment Care Compare group NPD
• Signature Medical Group, Inc

  • Durable Medical Equipment & Medical Supplies
  • Chesterfield, MO
  • NPI 1982473153
  NPD

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

• Mercy Hospital South

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1568481984

  Hospital

  Care Compare affiliation
• SSM Select Rehab St Louis LLC

  • Rehabilitation Hospital
  • Richmond Heights, MO
  • NPI 1659511988

  Inpatient rehabilitation facility

  Care Compare affiliation

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

{
    "created_epoch": "1653264000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755561600000",
    "number": "1700524618",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1519 TOWER GROVE AVE APT 1402",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631102276",
            "telephone_number": "618-339-3175"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12639 OLD TESSON RD STE 115",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631282786",
            "telephone_number": "314-849-0311",
            "fax_number": "314-849-4423"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HASLETT",
        "first_name": "MADDISSON",
        "middle_name": "ANN",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-05-23",
        "last_updated": "2025-08-19",
        "certification_date": "2025-08-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "IL",
            "license": "209025216",
            "primary": false
        },
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "MO",
            "license": "2022017958",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "maddisson.haslett@direct.signature.nextgenshare.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "12639 Old Tesson Rd Ste 115",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631282786",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Larry G Haskins, RPH.
• Wesley Haskins II
• Kyler Hasl-Wright, BT
• Richard Denis Haslam, MB, BCH, BAO
• Catherine Bull Hasler, PHD
• Jeffrey Adam Haspel, MD
• Abdalla H Hassan, M.D.
• Ahmad Farghaly Hassan, MD
• Anjum Hassan, MD
• Ghandi Hassan, MD

• Gerontology Nurse Practitioner in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Gerontology Nurse Practitioner in Missouri

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