Karen Arndt, ARNP
NPI 1104995596 · Family Nurse Practitioner · Montesano, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Arndt, ARNP is a Family Nurse Practitioner provider in Montesano, WA (NPI 1104995596).
Provider details
- NPI number
- 1104995596
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP30003364 (WA)
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 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
682 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 353 | $76 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 142 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 81 | $109 |
| Urinalysis, Manual Test81002 | 35 | $3 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 26 | $14 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 78 | 24 |
| Amlodipine Besylate | 73 | 20 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 72 | 23 |
| Levothyroxine Sodium | 61 | 12 |
| Omeprazole | 57 | 15 |
| Losartan Potassium | 57 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-07
- Last updated
- 2007-10-23
Frequently asked questions
- What is Karen Arndt's NPI number?
- Karen Arndt's National Provider Identifier (NPI) is 1104995596, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Arndt's specialty?
- Karen Arndt is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Arndt located?
- Karen Arndt's practice location on file with NPPES is 112 E Broadway Ave, Montesano, WA 98563-3704.
- What is Karen Arndt's phone number?
- The practice phone number listed in the NPPES registry for Karen Arndt is (360) 249-4111.
- Does Karen Arndt accept Medicare?
- Karen Arndt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Arndt's NPI active?
- Yes — Karen Arndt's NPI (1104995596) is active in the NPPES registry as of the last update on 2007-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.