npidata.org Sign in
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbySpecialtiesEvery NUCC taxonomy, with counts by state and cityStatesProvider counts and breakdowns for all 50 statesPhysician listsMDs and DOs with addresses and phone numbersNP listsNurse practitioners, the fastest-growing groupAPIJSON, delta feed, free tier
Use cases
Healthcare sales prospectingPhysician recruiting and locum staffingMedical device sales territory planningCredentialing and provider verificationHealthcare marketing lists and audience buildingPharmaceutical sales and prescriber targeting
Account
Start freeThree radars and an export a month Sign in Pricing
Explore
Data Labs API
About
About usTermsPrivacyContact us

Search › Massachusetts › 103T00000X

Marsha Chaskelson, PH.D

NPI 1639293681 · on the registry since 2007 · sole proprietor

Practice

Address
76 Bedford St
Suite 26
Lexington, MA 02420
Phone
(781) 863-5599
Fax
(781) 863-2488
Organisation at this address
Dylan J Dyer
Bill Maronn Licsw
Usman Ghumman Llc
Marlene Major Llc
Brian J Zinsmeister
Inferred from a shared address, not stated in the registry.
Clinicians at this address
50

Registry record

Primary taxonomy
103T00000X
103T00000X
Also registered as
103G00000X
103TB0200X
103TC2200X
Licence states on file
MA
From the registry's licence fields, which are often incomplete.
Sex
Female
Record last updated
2025-09-11

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Massachusetts