Marelda Whitmarsh, ARPN, MN, RN NP-C
NPI 1285645390 · Family Nurse Practitioner · Nine Mile Falls, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marelda Whitmarsh, ARPN, MN, RN NP-C is a Family Nurse Practitioner provider in Nine Mile Falls, WA (NPI 1285645390).
Provider details
- NPI number
- 1285645390
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARPN, MN, RN NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- AP4151 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
328 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 121 | $109 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $76 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 41 | $142 |
| Automated Urinalysis Test81003 | 34 | $2 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 19 | $95 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 83 | 78 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 42 | 41 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 32 | 30 |
| Cephalexin | 26 | 25 |
| Doxycycline Hyclate | 25 | 25 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 24 | 23 |
| Azithromycin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-11
- Last updated
- 2022-10-12
- Certified
- 2022-10-12
Frequently asked questions
- What is Marelda Whitmarsh's NPI number?
- Marelda Whitmarsh's National Provider Identifier (NPI) is 1285645390, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marelda Whitmarsh's specialty?
- Marelda Whitmarsh is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marelda Whitmarsh located?
- Marelda Whitmarsh's practice location on file with NPPES is 5952 Blackstone Way, Nine Mile Falls, WA 99026-4900.
- What is Marelda Whitmarsh's phone number?
- The practice phone number listed in the NPPES registry for Marelda Whitmarsh is (509) 464-3627.
- Does Marelda Whitmarsh accept Medicare?
- Marelda Whitmarsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marelda Whitmarsh's NPI active?
- Yes — Marelda Whitmarsh's NPI (1285645390) is active in the NPPES registry as of the last update on 2022-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.