Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARISSA NICOLE WALKER APRN, FNP-C
NPI 1902601164
Dermatology in Port Saint Lucie, FL

Active since February 13, 2025PECOS EnrolledAccepts Medicare Assignment
1701 SE HILLMOOR DR, PORT SAINT LUCIE, FL 34952(772) 480-5860 Get Directions Write a Review

NPPES record last updated: August 4, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 4, 2026, Feb 13, 2025 (2 updates tracked since 2025).

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

NPI1902601164
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameMARISSA NICOLE WALKERCredential: APRN, FNP-C
Location Address1701 SE HILLMOOR DRPort Saint Lucie, FL 34952-7552
Mailing Address412 Sw Curtis StPort Saint Lucie, FL 34983-1929 · (772) 971-2934
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateFebruary 13, 2025
Last NPPES UpdateAugust 4, 20262 updates tracked since enumeration
NPPES CertifiedAugust 4, 2026
NPI 1902601164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License Licensed in FL · 11037596
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
Also ListedNurse Practitioner · Primary CareTaxonomy 363LP2300X · License 11037596 (FL)
1701 SE HILLMOOR DR, Port Saint Lucie, FL 34952

Other Names 1

Former Name (1)Marissa Nicole Hewitt Aprn

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID2163943085
PECOS Enrollment IDI20250307003312
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient
$91.69 typical visit price
range $58.56 – $179.05
Typical copayment $22.92 (range $14.64 – $44.76)
Most-billed visit code 99203
Established Patient
$73.00 typical visit price
range $18.44 – $144.68
Typical copayment $18.25 (range $4.61 – $36.17)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Social Worker
1701 SE HILLMOOR DR, SUITE 17
PORT ST LUCIE, FL 34952
Psychiatry & Neurology (Neurology)
1701 SE HILLMOOR DR, SUITE D-16
PORT SAINT LUCIE, FL 34952
Chiropractor
1701 SE HILLMOOR DR, SUITE A1
PORT ST LUCIE, FL 34952
Internal Medicine
1701 SE HILLMOOR DR, SUITE #5
PORT SAINT LUCIE, FL 34952
Nurse Practitioner (Pediatrics)
1701 SE HILLMOOR DR, SUITE 19
PORT ST LUCIE, FL 34952
Massage Therapist
1701 SE HILLMOOR DR, SUITE 1A
PORT ST LUCIE, FL 34952
Clinic/Center (Multi-Specialty)
1701 SE HILLMOOR DR, STE. #A-1
PORT ST LUCIE, FL 34952
Internal Medicine
1701 SE HILLMOOR DR, SUITE 5
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.

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 15 days 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.