Active NPIIndividual provider

James S Lang, MD

Internal Medicine in Chelsea, Massachusetts

NPI Number1528488798
Practice location
151 Everett Ave, Chelsea, MA 02150-1807
Fax
617-889-8571
Last updated
October 15, 2025

James Stewart Lang is an Internal Medicine based in Chelsea, MA. James Stewart Lang practices in Chelsea, MA and has the professional credentials of MD. The NPI Number for James Stewart Lang is 1528488798 and holds a License No. 269504 (MA). The current practice location address for James Stewart Lang is 151 Everett Ave, Chelsea, MA 02150-1807 and can be reached out via phone at 617-889-8520 and via fax at 617-889-8571.

Provider Profile Details

NPI Number
1528488798
Provider Name
James Stewart Lang
Credential
MD
Provider Entity Type
Individual
Gender
Male
Address
151 Everett Ave, Chelsea, MA 02150-1807
Phone Number
617-889-8520
Fax Number
617-889-8571
Primary Taxonomy
Internal Medicine · 207R00000X
Sole Proprietor
No
Provider Enumeration Date
April 25, 2014
Last Update Date
October 15, 2025
Certification Date
October 15, 2025
NPI Status
Active

Provider Business Practice Location Address Details

Address
151 Everett Ave
Chelsea, MA 02150-1807
Zip
02150-1807
Phone Number
617-889-8520
Fax Number
617-889-8571
Chelsea, MA 02150Get directions →

Provider Business Mailing Address Details

Address
55 Fruit St
Boston, MA 02114-2621
City
Boston
State
MA
Zip
02114-2621

License Information

License Number (1)
269504
License State (1)
MA
Taxonomy (1)
Internal Medicine · 207R00000X · Primary
License Number (2)
MD61493634
License State (2)
WA
Taxonomy (2)
Internal Medicine · 207R00000X

Legacy Identifiers

IdentifierTypeStateIssuer
No legacy identifiers (Medicaid, Medicare or plan IDs) are on file for this provider.

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Frequently Asked Questions

What is the NPI number of James S Lang, MD?

The NPI number of James S Lang, MD is 1528488798. It was assigned on April 25, 2014 and is currently active in the NPPES registry.

What is the specialty of James S Lang, MD?

James S Lang, MD is registered under the primary taxonomy Internal Medicine (code 207R00000X), licensed in MA under license number 269504.

Where does James S Lang, MD practice?

The practice location is 151 Everett Ave, Chelsea, MA 02150-1807. The office can be reached at 617-889-8520 (phone) or 617-889-8571 (fax).

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). It is used in HIPAA standard transactions.

How do I verify this NPI record?

This record is sourced from the public NPPES NPI Registry maintained by CMS. You can confirm it by searching NPI 1528488798 directly on the NPPES registry website.

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