2026 NPPES data Family Nurse Practitioner NPI 1255703559 NP-C
Verify on CMS →

KATHRYN WALKER, NP-C

Family Nurse Practitioner in RATHDRUM, Idaho. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 213 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KATHRYN WALKER, NP-C filed 3,164 Medicare Part D claims in 2023 as a Family Nurse Practitioner in RATHDRUM, Idaho, prescribing 90% generic.

3K
Part D claims, 2023
90%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

KATHRYN WALKER, NP-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

3,164 Top 11% higher than 89% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about KATHRYN WALKER, NP-C?

Quality data not reported

NPI registry status

Active

Issued 10/26/2015

NPI 1255703559

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

3,164 159% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Idaho

How Family Nurse Practitioner compares to other specialties among Idaho providers

Idaho providers

Family Nurse Practitioner share within Idaho

1. Family Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Nurse Practitioner share within Idaho

Specialty board-certification context

Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

KATHRYN WALKER, NP-C appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding NP-C credentials at 16760 N HIGHWAY 41, RATHDRUM, ID, 83858, with a listed phone of (208) 687-5627. NPI 1255703559 was issued on 10/26/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WALKER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 3,164 prescription claims written by this provider, covering 213 Medicare beneficiaries and totaling roughly $302K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 4.7%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

16760 N HIGHWAY 41
RATHDRUM, ID 83858

Provider Details

NPI 1255703559
Specialty Family Nurse Practitioner
Credentials NP-C
Gender Female
NPI Issued 10/26/2015

Hospital and facility affiliations

Facilities where KATHRYN WALKER, NP-C bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

NEW HEALTH PROGRAMS ASSOCIATION
SPRINGDALE, WA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

KATHRYN WALKER, NP-C — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 3,164 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

3,164
Total Claims
$302K
Total Drug Cost
213
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,541
Total Day Supply
161,802
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$209K
Generic Drug Cost
$91K
Opioid Claims
148 (4.7% rate)
Antibiotic Claims
34

Patient Demographics

Average Patient Age
65.5 years
Avg HCC Risk Score
1.15
Gender Split
62% female / 38% male
Age Distribution
<65: 62, 65-74: 130, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What KATHRYN WALKER, NP-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Diclofenac Sodium
128
Atorvastatin Calcium
118
Levothyroxine Sodium
117
Omeprazole
110
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
101
Potassium Chloride
86
Amlodipine Besylate
76
Gabapentin
75
Lisinopril
75
Fluticasone Propionate
59

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Nurse Practitioner Overview

How KATHRYN WALKER, NP-C fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

KATHRYN WALKER, NP-C's 3,164 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Idaho

Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as WALKER.

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is KATHRYN WALKER, NP-C's specialty?
KATHRYN WALKER, NP-C specializes in Family Nurse Practitioner and practices in RATHDRUM, Idaho. Credentials: NP-C.
How much does KATHRYN WALKER, NP-C prescribe under Medicare Part D?
In 2023, KATHRYN WALKER, NP-C wrote 3,164 Medicare Part D claims totaling $302K in drug costs for 213 beneficiaries.
Where is KATHRYN WALKER, NP-C located?
KATHRYN WALKER, NP-C is located at 16760 N HIGHWAY 41, RATHDRUM, ID, 83858. Phone: (208) 687-5627.
What is KATHRYN WALKER, NP-C's NPI number?
KATHRYN WALKER, NP-C's National Provider Identifier (NPI) is 1255703559, issued on 10/26/2015.
Does KATHRYN WALKER, NP-C prescribe more brand-name or generic drugs?
KATHRYN WALKER, NP-C's prescribing is 10% brand-name and 90% generic drugs by claim count, with $209K in brand drug costs.
Does KATHRYN WALKER, NP-C prescribe opioids?
Yes, KATHRYN WALKER, NP-C had 148 opioid claims in 2023 with an opioid prescribing rate of 4.7%.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does KATHRYN WALKER, NP-C prescribe most often?
Based on 2023 Medicare Part D data, KATHRYN WALKER, NP-C's most frequently prescribed drugs include Diclofenac Sodium, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHRYN WALKER, NP-C accept Medicare?
KATHRYN WALKER, NP-C appears in CMS Medicare data with 3,164 Part D claims and 213 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHRYN WALKER, NP-C's credentials?
KATHRYN WALKER, NP-C's NPI is 1255703559 with credentials NP-C. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology