MARISSA NICOLE WALKER APRN, FNP-C
NPI 1902601164
Dermatology in Port Saint Lucie, FL
About Marissa Nicole Walker Aprn, Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARISSA NICOLE WALKER APRN, FNP-C (NPI 1902601164) is an individual dermatology provider in Port Saint Lucie, Florida, licensed in Florida (11037596) and active in the NPI registry since February 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Marissa Nicole Walker Aprn, Fnp-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Marissa Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stuart, FL 34994
- Reassigned Medicare billing, Florida enrollment
- 45 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 34952 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORT SAINT LUCIE, FL 34952
PORT SAINT LUCIE, FL 34952
PORT ST LUCIE, FL 34952
PORT ST LUCIE, FL 34952
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marissa Walker's NPI number?
The NPI number for Marissa Walker is 1902601164. It was assigned to this individual provider in the NPPES registry on February 13, 2025. The provider is also known as Marissa Nicole Hewitt Aprn.
Where is Marissa Walker located?
Marissa Walker practices at 1701 SE Hillmoor Dr, Port Saint Lucie, FL 34952. The listed phone number is (772) 480-5860.
What is Marissa Walker's specialty?
The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.
Is Marissa Walker enrolled in Medicare?
Yes. Marissa Walker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Marissa Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Walker reassigns Medicare benefits to Primary Care Solutions & More LLC (Stuart, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marissa Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Marissa Walker was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Marissa Nicole Walker, APRN, FNP-C · NPI 1902601164
Dermatology physician in Port Saint Lucie, Florida. Individual provider, active in the CMS NPPES registry since February 13, 2025.
## Identity
- **NPI:** 1902601164 (Entity type: Individual)
- **Enumerated:** February 13, 2025
- **Primary specialty:** Dermatology · taxonomy 207N00000X
- **State license:** 11037596 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 1701 SE HILLMOOR DR, Port Saint Lucie, FL 34952-7552
- **Phone:** (772) 480-5860
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Primary Care Solutions & More LLC (NPI 1659037562, Stuart, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** August 4, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1902601164) · Data from the CMS NPPES public registry.