2026 NPPES data Speech-Language Pathologist NPI 1558497800 CCC-SLP
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Nancy Smiley, CCC-SLP

Speech-Language Pathologist in Chesterfield, 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 197,587 in Speech-Language Pathologist, 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.

What the federal data shows

Nancy Smiley, CCC-SLP is a Speech-Language Pathologist in Chesterfield, Missouri, listed in the federal CMS National Provider Identifier registry.

#4
Speech-Language Pathologist rank among Missouri specialties

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.

Federal trust snapshot

What official records show about Nancy Smiley, CCC-SLP

Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1558497800), first enumerated 02/23/2007.

    Source: CMS NPPES

  • Not in federal data

    Medicare Part D participation

    No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).

    Source: CMS Part D Prescriber PUF

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

Compare Smiley with other Speech-Language Pathologist providers

Same primary specialty, same federal CMS NPPES roster.

All 111 Speech-Language Pathologist providers in Chesterfield, MO →

Also enrolled in Missouri

Other specialties in Chesterfield: Internal Medicine Physician (153) · Physical Therapist (116) · Pharmacist (101) · Family Nurse Practitioner (99)

CMS NPPES provider registry desk

NPI 1558497800 · Speech-Language Pathologist

NPI-10 · ENUM-MID · TAX-MEGA · RX-NONE · BOOK-MID · PHOTO-ENUM

  • NPI-10 1558497800
  • ENUM-MID 2007
  • TAX-MEGA 198K Speech-Language Pathologist
  • RX-NONE No Part D
  • BOOK-MID 5,032 in Missouri
  • PHOTO-ENUM Cindy Kumar, SLP · 2007

What does the federal data show about Nancy Smiley, CCC-SLP?

Quality data not reported

NPI registry status

Active

Issued 02/23/2007

NPI 1558497800

Primary specialty

Speech-Language Pathologist

High-volume

197,587 US NPIs in this specialty

Specialty distribution in Missouri

How Speech-Language Pathologist compares to other specialties among Missouri providers

Missouri providers
Professional Counselor4.8%Pharmacist4.8%Clinical Social Worker4.5%Speech-Language Pathologist4.5%Family Nurse Practitioner4.3%Physical Therapist4%
Largest specialties in Missouri (% 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 Speech-Language Pathologist. Verify directly:

How MIPS and board certification work

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).

Practice Address

1809 CLARKSON RD
Chesterfield, MO 63017

Provider Details

NPI 1558497800
Specialty Speech-Language Pathologist
Credentials CCC-SLP
Gender Female
NPI Issued 02/23/2007

Speech-Language Pathologist Overview

How Nancy Smiley, CCC-SLP fits within the Speech-Language Pathologist landscape nationally.

197,587
Speech-Language Pathologist Providers in US
55
States with Speech-Language Pathologist
293
Avg Claims per Provider

Nationwide Speech-Language Pathologist peers with similar MIPS or enrollment year

Two federal-record peer sets for Smiley, both outside Missouri so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2007)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Speech-Language Pathologist Providers in Missouri

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

One of 5,032 Speech-Language Pathologist providers enrolled in Missouri, 11 are shown on this page.

Compare Speech-Language Pathologist nationally: see state-by-state distribution →

Frequently Asked Questions

What is Nancy Smiley, CCC-SLP's specialty? ▼
Nancy Smiley, CCC-SLP specializes in Speech-Language Pathologist and practices in Chesterfield, Missouri. Credentials: CCC-SLP.
Where is Nancy Smiley, CCC-SLP located? ▼
Nancy Smiley, CCC-SLP is located at 1809 CLARKSON RD, Chesterfield, MO, 63017. Phone: (636) 532-3211.
What is Nancy Smiley, CCC-SLP's NPI number? ▼
Nancy Smiley, CCC-SLP's National Provider Identifier (NPI) is 1558497800, issued on 02/23/2007.
How many Speech-Language Pathologist providers are there in the US? ▼
There are 197,587 Speech-Language Pathologist providers across 55 states in the US. The average Speech-Language Pathologist provider writes 293 Medicare Part D claims per year.
Does Nancy Smiley, CCC-SLP accept Medicare? ▼
Nancy Smiley, CCC-SLP appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nancy Smiley, CCC-SLP's credentials? ▼
Nancy Smiley, CCC-SLP's NPI is 1558497800 with credentials CCC-SLP. 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

View source datasets and methodology notes
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.
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 August 2026 (NPPES) / 2024 (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

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.