2026 NPPES data Family Nurse Practitioner NPI 1669756474 DNP. ARNP
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Carol Lamoureux-Lewallen, DNP. ARNP

Family Nurse Practitioner in Spencer, Iowa. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 209,817 in Family Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
334
Medicare Part D claims · 51 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Carol Lamoureux-Lewallen, DNP. ARNP filed 334 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Spencer, Iowa, prescribing 96% generic.

334
Part D claims, 2023
96%
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.

Carol Lamoureux-Lewallen, DNP. ARNP's Medicare Part D volume vs every U.S. prescriber

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

334 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. 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 Carol Lamoureux-Lewallen, DNP. ARNP?

Quality data not reported

NPI registry status

Active

Issued 09/29/2011

NPI 1669756474

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

334 73% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Iowa

How Family Nurse Practitioner compares to other specialties among Iowa providers

Iowa providers

Largest specialties in Iowa (% of in-state providers)

Pharmacist - 6.6%Pharmacist6.6%Physical Therapist - 5.5%Physical Therapist5.5%Mental Health Counselor - 5%Mental Health Counselor5%Family Medicine Physician - 4.8%Family Medicine Physician4.8%Chiropractor - 4.2%Chiropractor4.2%Clinical Social Worker - 4.1%Clinical Social Worker4.1%Family Nurse Practitioner - 3.9%Family Nurse Practitioner3.9%
Largest specialties in Iowa (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Nurse Practitioner. Verify directly:

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).

Carol Lamoureux-Lewallen, DNP. ARNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding DNP. ARNP credentials at 116 E 7TH ST, Spencer, IA, 51301, with a listed phone of (712) 580-6592. NPI 1669756474 was issued on 09/29/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Lamoureux-Lewallen 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 334 prescription claims written by this provider, covering 51 Medicare beneficiaries and totaling roughly $15K in drug spend, split 4% brand-name and 96% generic by claim count. 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

116 E 7TH ST
Spencer, IA 51301

Provider Details

NPI 1669756474
Specialty Family Nurse Practitioner
Credentials DNP. ARNP
Gender Female
NPI Issued 09/29/2011

Brand vs generic prescribing mix · Generic-heavy

Carol Lamoureux-Lewallen, DNP. ARNP - brand share 4.0%
Family Nurse Practitioner average

4% brand-name claims vs 96% generic, on 334 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.

334
Total Claims
$15K
Total Drug Cost
51
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
706
Total Day Supply
18,954
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$10K
Generic Drug Cost
$5K
Antibiotic Claims
59

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
0.57
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

What Carol Lamoureux-Lewallen, DNP. ARNP 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
Azithromycin
15
Lisinopril
15
Atorvastatin Calcium
13
Cephalexin
12
Methylprednisolone
12
Prednisone
12
Rosuvastatin Calcium
11

* 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 Carol Lamoureux-Lewallen, DNP. ARNP 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

Carol Lamoureux-Lewallen, DNP. ARNP's 334 claims are below the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Iowa

Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Lamoureux-Lewallen.

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Iowa medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Carol Lamoureux-Lewallen, DNP. ARNP's specialty?
Carol Lamoureux-Lewallen, DNP. ARNP specializes in Family Nurse Practitioner and practices in Spencer, Iowa. Credentials: DNP. ARNP.
How much does Carol Lamoureux-Lewallen, DNP. ARNP prescribe under Medicare Part D?
In 2023, Carol Lamoureux-Lewallen, DNP. ARNP wrote 334 Medicare Part D claims totaling $15K in drug costs for 51 beneficiaries.
Where is Carol Lamoureux-Lewallen, DNP. ARNP located?
Carol Lamoureux-Lewallen, DNP. ARNP is located at 116 E 7TH ST, Spencer, IA, 51301. Phone: (712) 580-6592.
What is Carol Lamoureux-Lewallen, DNP. ARNP's NPI number?
Carol Lamoureux-Lewallen, DNP. ARNP's National Provider Identifier (NPI) is 1669756474, issued on 09/29/2011.
Does Carol Lamoureux-Lewallen, DNP. ARNP prescribe more brand-name or generic drugs?
Carol Lamoureux-Lewallen, DNP. ARNP's prescribing is 4% brand-name and 96% generic drugs by claim count, with $10K in brand drug costs.
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 Carol Lamoureux-Lewallen, DNP. ARNP prescribe most often?
Based on 2023 Medicare Part D data, Carol Lamoureux-Lewallen, DNP. ARNP's most frequently prescribed drugs include Azithromycin, Lisinopril, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Carol Lamoureux-Lewallen, DNP. ARNP accept Medicare?
Carol Lamoureux-Lewallen, DNP. ARNP appears in CMS Medicare data with 334 Part D claims and 51 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Carol Lamoureux-Lewallen, DNP. ARNP's credentials?
Carol Lamoureux-Lewallen, DNP. ARNP's NPI is 1669756474 with credentials DNP. 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

Compiled from official public sources by the PlainDoctor editorial team.