Mara Penatzer
Clinical Social Worker · Northampton, MA
Mara Penatzer is a clinical social worker with a practice address in Northampton, Massachusetts, and NPI 1336793033, issued on Jul 31, 2019. Check the license (Massachusetts 127100, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mara Penatzer
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 127100 MA
Self-reported in NPPES; status is on the state search - Practice location
- 16 Armory St Ste 11, Northampton, MA 01060
- Phone
- (413) 200-7869
- Enumerated
- Jul 31, 2019
- Record last updated
- May 18, 2026
- Medicare enrollment
- Enrolled (PECOS I20231127000117); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,815 in Massachusetts → Look up another NPI →
Also registered at 16 Armory St Ste 11
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott BarvainisClinical Social Worker1285151647
- Owen ColasClinical Social Worker1427945526
Verify Mara Penatzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 127100Check 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
- Servicenet IncGreenfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mara Penatzer among 17,815 clinical social worker records in Massachusetts
Mara Penatzer is one of 17,815 clinical social worker records with a practice address in Massachusetts. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 77% of them.
- NPI issued2019 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 17% of these records are
- Graduated2020 · median 2004 among the 3,059 with a school on file
- Record last updated2026 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
366 clinical social worker records list a practice address in Northampton
They are 366 of the 1,816 NPPES records with a practice address in Northampton, and 17,815 clinical social worker records in Massachusetts.
All 17,815 in Massachusetts → Every provider in Northampton → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Seth Dunn, MSW LICSWNorthampton, MA 010601285687590
- Phyllis Eckstein, MSW-LICSWNorthampton, MA 010601154305415
- Phoebe Fiddler, LICSWNorthampton, MA 010601366432072
- Melysa Friedman, MSW, LICSWNorthampton, MA 010601952350217
- Jaime Gershman, LICSWNorthampton, MA 010601659324945
- Heidi Haas, LICSWNorthampton, MA 010601013904929
- Susan Karas, L.I.C.S.W.Northampton, MA 010601023055886
- Jill Marland, LICSW MSWNorthampton, MA 010601104812205
Common questions
What is Mara Penatzer's NPI number?
Mara Penatzer's National Provider Identifier (NPI) is 1336793033, issued on Jul 31, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mara Penatzer located?
The NPPES record lists a practice address at 16 Armory St Ste 11, Northampton, MA, 01060. Phone: (413) 200-7869. Providers update this record themselves, so call before visiting.
How can I verify Mara Penatzer's license?
NPPES lists Massachusetts license number 127100, 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.