2026 NPPES data Marriage & Family Therapist NPI 1578633400 LMFT
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Katherine Mayhew, LMFT

Marriage & Family Therapist in Las Vegas, Nevada.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 87,699 in Marriage & Family Therapist, 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

Katherine Mayhew, LMFT is a Marriage & Family Therapist in Las Vegas, Nevada, listed in the federal CMS National Provider Identifier registry.

#17
Marriage & Family Therapist rank among Nevada 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.

CMS NPPES provider registry desk

NPI 1578633400 · Marriage & Family Therapist

NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-NONE · BOOK-LIGHT · PHOTO-ENUM

  • NPI-10 1578633400
  • ENUM-LEGACY 2006
  • TAX-MEGA 88K Marriage &
  • RX-NONE No Part D
  • BOOK-LIGHT 1,221 in Nevada
  • PHOTO-ENUM Tammy Lias · 2006

What does the federal data show about Katherine Mayhew, LMFT?

Quality data not reported

NPI registry status

Active

Issued 11/08/2006

NPI 1578633400

Primary specialty

Marriage & Family Therapist

High-volume

87,699 US NPIs in this specialty

Specialty distribution in Nevada

How Marriage & Family Therapist compares to other specialties among Nevada providers

Nevada providers
Personal Care Attendant25.1%Behavior Technician6.3%Rehabilitation Practitioner5.6%Behavior Analyst4.7%Chore Provider4.5%Mental Health Counselor2.6%Marriage & Family Therapist1.3%
Largest specialties in Nevada (% 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 Marriage & Family Therapist. 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

7371 W CHARLESTON BLVD
Las Vegas, NV 89117

Provider Details

NPI 1578633400
Specialty Marriage & Family Therapist
Credentials LMFT
Gender Female
NPI Issued 11/08/2006

Marriage & Family Therapist Overview

How Katherine Mayhew, LMFT fits within the Marriage & Family Therapist landscape nationally.

87,699
Marriage & Family Therapist Providers in US
55
States with Marriage & Family Therapist
217
Avg Claims per Provider

Nationwide Marriage & Family Therapist peers with similar MIPS or enrollment year

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

Same NPPES enumeration year (2006)

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

Nearby Marriage & Family Therapist Providers in Nevada

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

One of 1,221 Marriage & Family Therapist providers enrolled in Nevada, 5 are shown here.

Compare Marriage & Family Therapist nationally: see state-by-state distribution →

Frequently Asked Questions

What is Katherine Mayhew, LMFT's specialty?
Katherine Mayhew, LMFT specializes in Marriage & Family Therapist and practices in Las Vegas, Nevada. Credentials: LMFT.
Where is Katherine Mayhew, LMFT located?
Katherine Mayhew, LMFT is located at 7371 W CHARLESTON BLVD, Las Vegas, NV, 89117. Phone: (702) 217-9989.
What is Katherine Mayhew, LMFT's NPI number?
Katherine Mayhew, LMFT's National Provider Identifier (NPI) is 1578633400, issued on 11/08/2006.
How many Marriage & Family Therapist providers are there in the US?
There are 87,699 Marriage & Family Therapist providers across 55 states in the US. The average Marriage & Family Therapist provider writes 217 Medicare Part D claims per year.
Does Katherine Mayhew, LMFT accept Medicare?
Katherine Mayhew, LMFT appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katherine Mayhew, LMFT's credentials?
Katherine Mayhew, LMFT's NPI is 1578633400 with credentials LMFT. 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 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

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 May 2026.