Nastassia Nasha Postell, ARNP FNP-BC PMHNP-BC
Family Nurse Practitioner · Marathon, FL
At a glance
3000 41St Street Ocean, Marathon, FL 33050-2373
NPPES record updated Aug 7, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
3000 41St Street OceanMarathon, FL 33050-2373
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2017
- CMS specialties
- Nurse Practitioner
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $83.49 |
Reporting companies
| Company | Amount |
|---|---|
| INDIVIOR INC. | $59.49 |
| E.R. SQUIBB & SONS, L.L.C. | $24.00 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Family Nurse Practitioner
- Taxonomy code
- 363LF0000X
- Enumeration date
- Apr 16, 2018
- Record updated
- Aug 7, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- ARNP FNP-BC PMHNP-BC
Reported taxonomies and licenses
363LP0808X
License reported: APRN9229407 FL
363LP0808X
License reported: GAA-NP005459 GA
363LF0000X · Primary
License reported: ARNP9229407 FL
363LF0000X
License reported: 227451 LA
363LP0808X
License reported: 227451 LA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
3000 41St Street OceanMarathon, FL 33050-2373
- Phone
- (305) 434-7660
Mailing address
3000 41ST STREET OCEANMARATHON, FL 330502373
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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