NPPES file of Aug 9, 2026

Maria Mandalos, M.A.

Mental Health Counselor · Brookline, MA

Maria Mandalos, M.A. is a mental health counselor with a practice address in Brookline, Massachusetts, and NPI 1871964890, issued on Oct 16, 2015. Check the license with the Massachusetts 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
1871964890
Name
Maria Mandalos
Credential
M.A.
Primary taxonomy
Mental Health Counselor 101YM0800X
Practice location
1415 Beacon St, Brookline, MA 02446
Phone
(617) 566-2200
Enumerated
Oct 16, 2015
Record last updated
Oct 16, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20240206003923); 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 18,415 in Massachusetts → Look up another NPI →

Also registered at 1415 Beacon St

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

  1. Ayobami Akindumila, MS, LMFTMarriage & Family Therapist1023473584
  2. Michal Almagor, MAMental Health Counselor1326352865
  3. Rhea Antonio, PSY.D.Psychologist1811148117
  4. Chelsea Baldwin, M.S.W.Clinical Social Worker1679851919
  5. Carol Barnes, MA LMHCMental Health Counselor1548369366
  6. Lydia BaumrindPsychologist1861509937

Verify Maria Mandalos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck 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.

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Bills Medicare through one group practice

  1. North End Community Health Committee, Inc.Boston, MA

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

Maria Mandalos among 18,415 mental health counselor records in Massachusetts

Maria Mandalos, M.A. 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. Its NPI, issued in 2015, is newer than 44% of them.

  • NPI issued2015 · 44% of these records are older, 52% newer
  • In a Medicare fileYes · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2015 · median 2014 among the 1,811 with a school on file
  • Record last updated2015 · 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).

209 mental health counselor records list a practice address in Brookline

They are 209 of the 2,357 NPPES records with a practice address in Brookline, and 18,415 mental health counselor records in Massachusetts.

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

The 8 mental health counselor records with the nearest ZIP codes

  1. Amy Armstrong, LICSWBrookline, MA 024461609961085
  2. Carol Barnes, MA LMHCBrookline, MA 024461548369366
  3. Eden Brenner, LICSWBrookline, MA 024461710089289
  4. Hanna Fogel, LMFT, LMHCBrookline, MA 024461124100409
  5. Tera Hirsch, L.I.C.S.W., PH.D.Brookline, MA 024461386792661
  6. Glenn Klein, LMHCBrookline, MA 024461578657755
  7. Barbara Marks, LICSWBrookline, MA 024461801950357
  8. Chippa Martin, MABrookline, MA 024461942389200

Common questions

What is Maria Mandalos, M.A.'s NPI number?

Maria Mandalos, M.A.'s National Provider Identifier (NPI) is 1871964890, issued on Oct 16, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Maria Mandalos, M.A. located?

The NPPES record lists a practice address at 1415 Beacon St, Brookline, MA, 02446. Phone: (617) 566-2200. Providers update this record themselves, so call before visiting.

How can I verify Maria Mandalos, M.A.'s license?

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. Medicare files from data.cms.gov. 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.