NPPES file of Aug 9, 2026

Arianna Monica Williams, LMHC

Mental Health Counselor · New Rochelle, NY

Arianna Monica Williams, LMHC is a mental health counselor with a practice address in New Rochelle, New York, and NPI 1891565099, issued on Jan 8, 2024. Check the license (New York 017433, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891565099
Name
Arianna Monica Williams
Credential
LMHC
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
017433 NY
Self-reported in NPPES; status is on the state search
Practice location
481 Main St Ste 401, New Rochelle, NY 10801
Phone
(914) 355-2440
Enumerated
Jan 8, 2024
Record last updated
Jan 29, 2026
Medicare enrollment
Enrolled (PECOS I20260211001080); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest mental health counselor records → All 19,989 in New York → Look up another NPI →

Also registered at 481 Main St Ste 401

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah AbrilMental Health Counselor1922930981
  2. Dalyn Algarin, LMFTMarriage & Family Therapist1598495293
  3. Yhatrid Algarin, LCSWRClinical Social Worker1447293642
  4. Alissa Atkinson, LMSWSocial Worker1326869363
  5. Lauren Barragan, LMSWSocial Worker1982583381
  6. Raffaela Bonventre, LMSWSocial Worker1851967863

Verify Arianna Monica Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 017433    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Arianna Monica Williams among 19,989 mental health counselor records in New York

Arianna Monica Williams, LMHC is one of 19,989 mental health counselor records with a practice address in New York. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2024, is newer than 77% of them.

  • NPI issued2024 · 77% of these records are older, 15% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2023 · median 2018 among the 2,142 with a school on file
  • Record last updated2026 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

90 mental health counselor records list a practice address in New Rochelle

They are 90 of the 2,105 NPPES records with a practice address in New Rochelle, and 19,989 mental health counselor records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 19,989 in New York → Every provider in New Rochelle → Mental Health Counselor nationwide →

The 8 mental health counselor records with the nearest ZIP codes

  1. Cecilia Alvarez, LMHCNew Rochelle, NY 108011447585203
  2. Arie AndersonNew Rochelle, NY 108011235534025
  3. Joyce Bellish, LCATNew Rochelle, NY 108011588998421
  4. Richard Boddie, CSWNew Rochelle, NY 108011881803401
  5. Carolyn Burgos, LMHCNew Rochelle, NY 108011154754299
  6. Adriana Daza, M.SNew Rochelle, NY 108011023326204
  7. Joshua Despain, LMHCNew Rochelle, NY 108011295009504
  8. Lynn Gonzalez, LCSWNew Rochelle, NY 108011437401379

Common questions

What is Arianna Monica Williams, LMHC's NPI number?

Arianna Monica Williams, LMHC's National Provider Identifier (NPI) is 1891565099, issued on Jan 8, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Arianna Monica Williams, LMHC located?

The NPPES record lists a practice address at 481 Main St Ste 401, New Rochelle, NY, 10801. Phone: (914) 355-2440. Providers update this record themselves, so call before visiting.

How can I verify Arianna Monica Williams, LMHC's license?

NPPES lists New York license number 017433, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.