NPPES file of Aug 9, 2026

Jonathan Chack, M.A.

Mental Health Counselor · Ayer, MA

Jonathan Chack, M.A. is a mental health counselor with a practice address in Ayer, Massachusetts, and NPI 1922312347, issued on Jul 27, 2010. Check the license (Massachusetts 7572, as entered in NPPES) 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
1922312347
Name
Jonathan Chack
Credential
M.A.
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
7572 MA
Self-reported in NPPES; status is on the state search
Practice location
10 East St, Ayer, MA 01432
Phone
(978) 464-1048
Enumerated
Jul 27, 2010
Record last updated
Jan 14, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20240110004796); may accept 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.
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Verify Jonathan Chack 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 7572
    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.

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Bills Medicare through one group practice

  1. Forensic Consultation And Counseling ServiceRutland, VT

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

7 mental health counselor records list a practice address in Ayer

They are 7 of the 118 NPPES records with a practice address in Ayer, and 18,415 mental health counselor records in Massachusetts.

Other mental health counselor records in Massachusetts

  1. Casandra Aasmundsen, MAWorcester, MA1104234442
  2. Maryam AbalkhailHolyoke, MA1275035131
  3. Daniela AbarcaSpringfield, MA1871262006
  4. Lorena Abarr, LMHC, CADCAmherst, MA1902178858
  5. Laura AbascianoDedham, MA1336446137
  6. Tatyana AbashinaSpringfield, MA1902013113
  7. Diana AbathGreenfield, MA1679371942
  8. Bryan Abbott, MSTaunton, MA1306671987
  9. Carolee Abbott, LMHCHyannis, MA1013030485
  10. Rebeca AbboudJamaica Plain, MA1588991525

Common questions

What is Jonathan Chack, M.A.'s NPI number?

Jonathan Chack, M.A.'s National Provider Identifier (NPI) is 1922312347, issued on Jul 27, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Chack, M.A. located?

The NPPES record lists a practice address at 10 East St, Ayer, MA, 01432. Phone: (978) 464-1048. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Chack, M.A.'s license?

NPPES lists Massachusetts license number 7572, 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. 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.