NPI registry status
Active
2026 NPPES data Mental Health Counselor NPI 1154084747
Verify on CMS → Mariah Williams
Mental Health Counselor in Baton Rouge, Louisiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 293,893 in Mental Health Counselor, 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
Mariah Williams is a Mental Health Counselor in Baton Rouge, Louisiana, listed in the federal CMS National Provider Identifier registry.
- #2
- Mental Health Counselor rank among Louisiana 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 1154084747 · Mental Health Counselor
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-NONE · BOOK-MID · PHOTO-ENUM
- NPI-10 1154084747
- ENUM-RECENT 2021
- TAX-MEGA 294K Mental Health
- RX-NONE No Part D
- BOOK-MID 6,533 in Louisiana
- PHOTO-ENUM Shanterica Blake · 2021
What does the federal data show about Mariah Williams?
Quality data not reportedPrimary specialty
Mental Health Counselor
Specialty distribution in Louisiana
How Mental Health Counselor compares to other specialties among Louisiana 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 Mental Health Counselor. 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
Provider Details
| NPI | 1154084747 |
|---|---|
| Specialty | Mental Health Counselor |
| Gender | Female |
| NPI Issued | 10/20/2021 |
Mental Health Counselor Overview
How Mariah Williams fits within the Mental Health Counselor landscape nationally.
293,893
Mental Health Counselor Providers in US
55
States with Mental Health Counselor
1,063
Avg Claims per Provider
Nationwide Mental Health Counselor peers with similar MIPS or enrollment year
Two federal-record peer sets for Williams, both outside Louisiana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2021)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Mental Health Counselor Providers in Louisiana
Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as Williams.
One of 6,533 Mental Health Counselor providers enrolled in Louisiana, 5 are shown here.
Dr. Alexis Aaron
MHP
Alexandria, LA
Dr. Jamarcus Aaron
BAASC
Thibodaux, LA
Audrey Aaron-Williams
Zachary, LA
Dr. Ann Abbrecht
LPNCC
New Orleans, LA
Dr. Mary Abel
LCSW
Baton Rouge, LA
Compare Mental Health Counselor nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mariah Williams's specialty? ▼
Mariah Williams specializes in Mental Health Counselor and practices in Baton Rouge, Louisiana.
Where is Mariah Williams located? ▼
Mariah Williams is located at 11861 COURSEY BLVD, Baton Rouge, LA, 70816. Phone: (225) 328-3218.
What is Mariah Williams's NPI number? ▼
Mariah Williams's National Provider Identifier (NPI) is 1154084747, issued on 10/20/2021.
How many Mental Health Counselor providers are there in the US? ▼
There are 293,893 Mental Health Counselor providers across 55 states in the US. The average Mental Health Counselor provider writes 1,063 Medicare Part D claims per year.
Does Mariah Williams accept Medicare? ▼
Mariah Williams appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mariah Williams's credentials? ▼
Mariah Williams's NPI is 1154084747. 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.