NPPES file of Aug 9, 2026

Marci Beth Simon, LMHC

Mental Health Counselor · Lexington, MA

Marci Beth Simon, LMHC is a mental health counselor with a practice address in Lexington, Massachusetts, and NPI 1023165941, issued on Jan 4, 2007. Check the license (Massachusetts 5811, as entered in NPPES) with the Massachusetts 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
1023165941
Name
Marci Beth Simon
Credential
LMHC
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
5811 MA
Self-reported in NPPES; status is on the state search
Practice location
789 Massachusetts Ave, Lexington, MA 02420
Phone
(617) 888-3060
Enumerated
Jan 4, 2007
Record last updated
Dec 7, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20240119001601); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

8 nearest mental health counselor records → All 18,415 in Massachusetts → Look up another NPI →

Also registered at 789 Massachusetts Ave

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

  1. Eileen Kern, LICSWClinical Social Worker1801018734
  2. Karen Maguire, LIC.AC.Contractor1588872733

Verify Marci Beth Simon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 5811    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 Massachusetts 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Marci Beth Simon among 18,415 mental health counselor records in Massachusetts

Marci Beth Simon, LMHC is one of 18,415 mental health counselor records with a practice address in Massachusetts. 7% 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 2007, is newer than 6% of them.

  • NPI issued2007 · 6% of these records are older, 84% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2002 · median 2014 among the 1,811 with a school on file
  • Record last updated2020 · 60% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

429 mental health counselor records list a practice address in Lexington

They are 429 of the 1,467 NPPES records with a practice address in Lexington, and 18,415 mental health counselor records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 18,415 in Massachusetts → Every provider in Lexington → Mental Health Counselor nationwide →

The 8 mental health counselor records with the nearest ZIP codes

  1. Jonathan Baxter, MA, MS, LMHCLexington, MA 024201760618417
  2. Alison Cook, PHDLexington, MA 024201316351935
  3. Jennifer Coplon, LICSWLexington, MA 024201114095619
  4. Eleanor Elkin, LICSWLexington, MA 024201962573642
  5. Karen Ford, LMHCLexington, MA 024201447374681
  6. Allison Kroeger, LICSWLexington, MA 024201144379637
  7. Nancy Maclean, LMHCLexington, MA 024201225471410
  8. Erin McGreevy, LMHCLexington, MA 024201578838272

Common questions

What is Marci Beth Simon, LMHC's NPI number?

Marci Beth Simon, LMHC's National Provider Identifier (NPI) is 1023165941, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Marci Beth Simon, LMHC located?

The NPPES record lists a practice address at 789 Massachusetts Ave, Lexington, MA, 02420. Phone: (617) 888-3060. Providers update this record themselves, so call before visiting.

How can I verify Marci Beth Simon, LMHC's license?

NPPES lists Massachusetts license number 5811, as entered by the provider. Search the Massachusetts 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.