Marika Walker, PA-C
NPI 1437469970 · Medical Physician Assistant · Port Orange, FL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marika Walker, PA-C is a Medical Physician Assistant provider in Port Orange, FL (NPI 1437469970).
Provider details
- NPI number
- 1437469970
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- PA9115209 (FL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
367 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 206 | $106 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 114 | $75 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 47 | $139 |
Typical Medicare-allowed amounts for these services range $75–$139 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 111 | 110 |
| Omeprazole | 94 | 51 |
| Famotidine | 79 | 30 |
| Pantoprazole Sodium | 67 | 30 |
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 32 | 31 |
| Linaclotidebrand: Linzess | 27 | — |
| Dicyclomine Hcl | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,068 across 45 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-10-18
- Last updated
- 2024-10-14
- Certified
- 2024-10-14
Frequently asked questions
- What is Marika Walker's NPI number?
- Marika Walker's National Provider Identifier (NPI) is 1437469970, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marika Walker's specialty?
- Marika Walker is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marika Walker located?
- Marika Walker's practice location on file with NPPES is 3635 Clyde Morris Blvd Ste 100, Port Orange, FL 32129-2349.
- What is Marika Walker's phone number?
- The practice phone number listed in the NPPES registry for Marika Walker is (904) 398-7205.
- Does Marika Walker accept Medicare?
- Marika Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marika Walker's NPI active?
- Yes — Marika Walker's NPI (1437469970) is active in the NPPES registry as of the last update on 2024-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.