NPPES file of Aug 9, 2026

Leonid Chernyakhovsky, LGSW

Mental Health Counselor · Middle River, MD

Leonid Chernyakhovsky, LGSW is a mental health counselor with a practice address in Middle River, Maryland, and NPI 1861881443, issued on Jan 20, 2015. Check the license (Maryland 19870, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1861881443
Name
Leonid Chernyakhovsky
Credential
LGSW
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
19870 MD
Self-reported in NPPES; status is on the state search
Practice location
690 Seawave CT, Middle River, MD 21220
Phone
(443) 938-4401
Enumerated
Jan 20, 2015
Record last updated
Jan 20, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180213001363); accepts 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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Verify Leonid Chernyakhovsky in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 19870
    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 Maryland 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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Bills Medicare through one group practice

  1. Apex Counseling Center, LLCBaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Leonid Chernyakhovsky among 4,201 mental health counselor records in Maryland

Leonid Chernyakhovsky, LGSW is one of 4,201 mental health counselor records with a practice address in Maryland. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 21% of them.

  • NPI issued2015 · 21% of these records are older, 77% newer
  • In a Medicare fileYes · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2014 · median 2016 among the 472 with a school on file
  • Record last updated2015 · 37% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 mental health counselor records list a practice address in Middle River

They are 14 of the 175 NPPES records with a practice address in Middle River, and 4,201 mental health counselor records in Maryland.

The 8 mental health counselor records with the nearest ZIP codes

  1. Shari Cain, M.A.Middle River, MD 212201922552801
  2. Kathleen Crawford, LCPCMiddle River, MD 212201801080403
  3. Ashayna DanielMiddle River, MD 212201992664114
  4. Shanzet Jones, LGPCBaltimore, MD 212201679397897
  5. Erica Kelly, LMSWMiddle River, MD 212201609330489
  6. Shaquetta Little-Young, LCPCMiddle River, MD 212201841871993
  7. Al-Jumal Mitchell, LPCMiddle River, MD 212201194553917
  8. Aanchal Mohanty, LGPCMiddle River, MD 212201386488823

Common questions

What is Leonid Chernyakhovsky, LGSW's NPI number?

Leonid Chernyakhovsky, LGSW's National Provider Identifier (NPI) is 1861881443, issued on Jan 20, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Leonid Chernyakhovsky, LGSW located?

The NPPES record lists a practice address at 690 Seawave CT, Middle River, MD, 21220. Phone: (443) 938-4401. Providers update this record themselves, so call before visiting.

How can I verify Leonid Chernyakhovsky, LGSW's license?

NPPES lists Maryland license number 19870, as entered by the provider. Search the Maryland 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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.