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James Lang, M.D

NPI 1528488798 · on the registry since 2014

Practice

Address: 151 Everett Ave
Chelsea, MA 02150
Phone: (617) 889-8520
Fax: (617) 889-8571
Organisation at this address: Mass General Hospital
Mind And Heart Workshop Group Llc
Inferred from a shared address, not stated in the registry.
Clinicians at this address: 118

Registry record

Primary taxonomy: Internal Medicine Physician
207R00000X
Also registered as: Internal Medicine Physician
Licence states on file: MA, WA
From the registry's licence fields, which are often incomplete.
Sex: Male
Record last updated: 2025-10-15

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