Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Stephen O Chastain MD PC

Organization Adult Medicine Physician · NPI 1053502153

Stephen O Chastain MD PC is an Adult Medicine Physician in Methuen, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2007.

Licensed in
MA
In the registry since
2007
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

33 Lawrence St
Methuen, MA 01844-4445
Phone: (978) 683-3023
Fax: (978) 691-5139
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Medicine Physician (primary) Taxonomy 207QA0505X · Licence 45089 (MA)

Record details

NPI number1053502153
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Stephen Chastain — President · (978) 683-4314
NPI enumeratedAugust 5, 2007
Last updated in NPPESAugust 5, 2007
Mailing address33 Lawrence St, Methuen, MA 01844-4445

Other providers in Methuen