Nastassia Nasha Postell, ARNP FNP-BC PMHNP-BC

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

ARNP9229407 Issued in FL

Practice address

3000 41St Street Ocean
Marathon, FL 33050-2373

Phone

(305) 434-7660

NPI assigned

Apr 16, 2018

Last updated

Aug 7, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 5

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in FL

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, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Guidance/Care Center, Inc.Group PAC ID 6608813035, 7 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Guidance/Care Center, Inc.

  • Community/Behavioral Health Agency
  • Marathon, FL
  • NPI 1184627739
  Medicare reassignment Care Compare group NPD
• Guidance/Care Center, Inc.

  • Special Hospital
  • Marathon, FL
  • NPI 1720845407
  NPD

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

{
    "created_epoch": "1523836800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786060800000",
    "number": "1396232484",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3000 41ST STREET OCEAN",
            "city": "MARATHON",
            "state": "FL",
            "postal_code": "330502373",
            "telephone_number": "305-434-7660",
            "fax_number": "305-434-9040"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3000 41ST STREET OCEAN",
            "city": "MARATHON",
            "state": "FL",
            "postal_code": "330502373",
            "telephone_number": "305-434-7660"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "POSTELL",
        "first_name": "NASTASSIA",
        "middle_name": "NASHA",
        "credential": "ARNP FNP-BC PMHNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-04-16",
        "last_updated": "2026-08-07",
        "certification_date": "2026-08-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "FL",
            "license": "ARNP9229407",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "LA",
            "license": "227451",
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "FL",
            "license": "APRN9229407",
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "GA",
            "license": "GAA-NP005459",
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "LA",
            "license": "227451",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "025144800",
            "state": "FL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Harlan Eric Pettit, M.D.
• Linda Florence Philipp, MSN, NP-C
• Michele Phillips, RN
• Lisa Poos
• Lacreashia Pope
• Preventive Dentistry for Children PA (Preventive Dentistry for Children)
• Pride Care Center Inc
• Robert Prosser
• Publix Super Markets Inc (Publix Pharmacy #0575)
• Qi by the Sea, Inc.

• Family Nurse Practitioner in Marathon, FL
• Providers in Marathon, FL by specialty
• Family Nurse Practitioner in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 7, 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.