Gwendolyn Leaf, MA
Mental Health Counselor · Northampton, MA
Gwendolyn Leaf, MA is a mental health counselor with a practice address in Northampton, Massachusetts, and NPI 1184104259, issued on Aug 17, 2018. Check the license with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gwendolyn Leaf
- Credential
- MA
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- Practice location
- 269 Main St, Northampton, MA 01060
- Phone
- (413) 584-0075
- Enumerated
- Aug 17, 2018
- Record last updated
- Aug 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20240111001144); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest mental health counselor records → All 18,415 in Massachusetts → Look up another NPI →
Also registered at 269 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha Chaplin, M.S.W.Clinical Social Worker1417325887
Verify Gwendolyn Leaf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Center For Human Development, Inc.Orange, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gwendolyn Leaf among 18,415 mental health counselor records in Massachusetts
Gwendolyn Leaf, MA 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 2018, is newer than 57% of them.
- NPI issued2018 · 57% of these records are older, 39% newer
- In a Medicare fileYes · 7% of these records are
- In the CMS Doctors and Clinicians fileYes · 10% of these records are
- Graduated2018 · median 2014 among the 1,811 with a school on file
- Record last updated2018 · 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).
198 mental health counselor records list a practice address in Northampton
They are 198 of the 1,816 NPPES records with a practice address in Northampton, and 18,415 mental health counselor records in Massachusetts.
All 18,415 in Massachusetts → Every provider in Northampton → Mental Health Counselor nationwide →
The 8 mental health counselor records with the nearest ZIP codes
- Sandra Berchulski, MA LMHCNorthampton, MA 010601013084896
- Brenden Berge, LMHCNorthampton, MA 010601972546554
- Gia Bernini, LICSWNorthampton, MA 010601770670135
- Kirsten Cirincione, LMHCNorthampton, MA 010601548325269
- Rebecca Downing, LMHCNorthampton, MA 010601740374701
- Sarah Getoff, M EDNorthampton, MA 010601225144397
- Lucy Hemmendinger, LMHCNorthampton, MA 010601407898638
- Kerry Lusignan, MA LMHCNorthampton, MA 010601174586796
Common questions
What is Gwendolyn Leaf, MA's NPI number?
Gwendolyn Leaf, MA's National Provider Identifier (NPI) is 1184104259, issued on Aug 17, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Gwendolyn Leaf, MA located?
The NPPES record lists a practice address at 269 Main St, Northampton, MA, 01060. Phone: (413) 584-0075. Providers update this record themselves, so call before visiting.
How can I verify Gwendolyn Leaf, MA'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.
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.