2026 NPPES data Primary Care Nurse Practitioner NPI 1114601812 ARNP
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SANJA PROSZEK, ARNP

Primary Care Nurse Practitioner in SPOKANE VALLEY, Washington. 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
428
Medicare Part D claims · 186 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Industry payments
$73.69
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SANJA PROSZEK, ARNP is a Primary Care Nurse Practitioner ([object Object]) practicing in SPOKANE VALLEY, Washington with a Medicare Part D prescribing footprint of 428 claims across 186 beneficiaries . Industry payments of $73.69 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SANJA PROSZEK, ARNP filed 428 Medicare Part D claims in 2023 across SPOKANE VALLEY, Washington. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SANJA PROSZEK, ARNP at a glance

Quality data not reported

NPI registry status

Active

Issued 06/13/2023

NPI 1114601812

Primary specialty

Primary Care Nurse Practitioner

Mid-sized

10,138 US NPIs in this specialty

Medicare Part D claims

428 69% vs specialty avg

2023 prescription claims

Specialty avg: 1,363

Specialty distribution in Washington

How Primary Care Nurse Practitioner compares to other specialties among Washington providers

Washington providers

Primary Care Nurse Practitioner share within Washington

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Primary Care 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).

SANJA PROSZEK, ARNP is a Primary Care Nurse Practitioner provider practicing in SPOKANE VALLEY, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: ARNP. NPI: 1114601812. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SANJA PROSZEK, ARNP appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider holding ARNP credentials at 1215 N MCDONALD RD, SPOKANE VALLEY, WA, 99216, with a listed phone of (509) 598-7750. NPI 1114601812 was issued on 06/13/2023. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PROSZEK 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 428 prescription claims written by this provider, covering 186 Medicare beneficiaries and totaling roughly $52K in drug spend, with an opioid prescribing rate of 9.6%. 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.

Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 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

1215 N MCDONALD RD
SPOKANE VALLEY, WA 99216

Provider Details

NPI 1114601812
Specialty Primary Care Nurse Practitioner
Credentials ARNP
Gender Female
NPI Issued 06/13/2023

Hospital and facility affiliations

Facilities where SANJA PROSZEK, ARNP 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.

MULTICARE HEALTH SYSTEM
TACOMA, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for SANJA PROSZEK, ARNP. Source: openpaymentsdata.cms.gov.

Total received

$74

Largest payer

Gilead Sciences, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Washington WMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 — they are NOT specific to SANJA PROSZEK, ARNP. To verify SANJA PROSZEK, ARNP's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

428
Total Claims
$52K
Total Drug Cost
186
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
702
Total Day Supply
19,131
Generic Drug Cost
$8K
Opioid Claims
41 (9.6% rate)
Antibiotic Claims
20

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.53
Gender Split
66% female / 34% male
Age Distribution
<65: 30, 65-74: 62, 75-84: 68, 85+: 26

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
18
Fluticasone Propionate
12

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

Primary Care Nurse Practitioner Overview

How SANJA PROSZEK, ARNP fits within the Primary Care Nurse Practitioner landscape nationally.

10,138
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider

SANJA PROSZEK, ARNP's 428 claims are below the specialty average of 1,363.

Nearby Primary Care Nurse Practitioner Providers in Washington

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

Compare Primary Care Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is SANJA PROSZEK, ARNP's specialty?
SANJA PROSZEK, ARNP specializes in Primary Care Nurse Practitioner and practices in SPOKANE VALLEY, Washington. Credentials: ARNP.
How much does SANJA PROSZEK, ARNP prescribe under Medicare Part D?
In 2023, SANJA PROSZEK, ARNP wrote 428 Medicare Part D claims totaling $52K in drug costs for 186 beneficiaries.
Where is SANJA PROSZEK, ARNP located?
SANJA PROSZEK, ARNP is located at 1215 N MCDONALD RD, SPOKANE VALLEY, WA, 99216. Phone: (509) 598-7750.
What is SANJA PROSZEK, ARNP's NPI number?
SANJA PROSZEK, ARNP's National Provider Identifier (NPI) is 1114601812, issued on 06/13/2023.
Does SANJA PROSZEK, ARNP prescribe opioids?
Yes, SANJA PROSZEK, ARNP had 41 opioid claims in 2023 with an opioid prescribing rate of 9.6%.
How many Primary Care Nurse Practitioner providers are there in the US?
There are 10,138 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does SANJA PROSZEK, ARNP prescribe most often?
Based on 2023 Medicare Part D data, SANJA PROSZEK, ARNP's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SANJA PROSZEK, ARNP accept Medicare?
SANJA PROSZEK, ARNP appears in CMS Medicare data with 428 Part D claims and 186 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SANJA PROSZEK, ARNP's credentials?
SANJA PROSZEK, ARNP's NPI is 1114601812 with credentials ARNP. 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