2026 NPPES data Nurse Practitioner NPI 1003440215 NP
Verify on CMS →

Cassondra Simmoneau, NP

Nurse Practitioner in Springfield, Missouri. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 87,227 in 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
39
Medicare Part D claims · 18 beneficiaries · Nurse Practitioner avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Cassondra Simmoneau, NP filed 39 Medicare Part D claims in 2023 as a Nurse Practitioner in Springfield, Missouri.

39
Part D claims, 2023

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.

Cassondra Simmoneau, NP's Medicare Part D volume vs every U.S. prescriber

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

39 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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. 2,000–2,200: 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 Cassondra Simmoneau, NP?

Quality data not reported

NPI registry status

Active

Issued 02/26/2020

NPI 1003440215

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

39 96% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

Specialty distribution in Missouri

How Nurse Practitioner compares to other specialties among Missouri providers

Missouri providers

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

Pharmacist — 4.8%Pharmacist4.8%Professional Counselor — 4.8%Professional Counselor4.8%Speech-Language Pathologist — 4.5%Speech-Language Pathologist4.5%Clinical Social Worker — 4.5%Clinical Social Worker4.5%Family Nurse Practitioner — 4.3%Family Nurse Practitioner4.3%Physical Therapist — 4%Physical Therapist4%Nurse Practitioner — 1.4%Nurse Practitioner1.4%
Largest specialties in Missouri (% of in-state providers)

Specialty board-certification context

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

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

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

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

Cassondra Simmoneau, NP appears in the CMS NPPES registry as a Nurse Practitioner provider holding NP credentials at 3800 S NATIONAL AVE STE 510, Springfield, MO, 65807, with a listed phone of (417) 875-3000. NPI 1003440215 was issued on 02/26/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Simmoneau 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 39 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $2K in drug spend. 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.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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

3800 S NATIONAL AVE STE 510
Springfield, MO 65807

Provider Details

NPI 1003440215
Specialty Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 02/26/2020

Hospital and facility affiliations

Facilities where Cassondra Simmoneau, NP 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.

Lester E Cox Medical Centers
Springfield, MO

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

Medicare Part D Prescribing Data

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

39
Total Claims
$2K
Total Drug Cost
18
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
69
Total Day Supply
1,858
Generic Drug Cost
$480

Patient Demographics

Average Patient Age
66.6 years
Avg HCC Risk Score
2.25

Nurse Practitioner Overview

How Cassondra Simmoneau, NP fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

Cassondra Simmoneau, NP's 39 claims are below the specialty average of 1,084.

Nearby Nurse Practitioner Providers in Missouri

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

Compare 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 Missouri medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby 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 Cassondra Simmoneau, NP's specialty?
Cassondra Simmoneau, NP specializes in Nurse Practitioner and practices in Springfield, Missouri. Credentials: NP.
How much does Cassondra Simmoneau, NP prescribe under Medicare Part D?
In 2023, Cassondra Simmoneau, NP wrote 39 Medicare Part D claims totaling $2K in drug costs for 18 beneficiaries.
Where is Cassondra Simmoneau, NP located?
Cassondra Simmoneau, NP is located at 3800 S NATIONAL AVE STE 510, Springfield, MO, 65807. Phone: (417) 875-3000.
What is Cassondra Simmoneau, NP's NPI number?
Cassondra Simmoneau, NP's National Provider Identifier (NPI) is 1003440215, issued on 02/26/2020.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
Does Cassondra Simmoneau, NP accept Medicare?
Cassondra Simmoneau, NP appears in CMS Medicare data with 39 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cassondra Simmoneau, NP's credentials?
Cassondra Simmoneau, NP's NPI is 1003440215 with credentials NP. 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.