Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Douglas William Stewart, DMD

Endodontics in Hingham, MA · enumerated 2006 · practices at Hingham Endodontics, Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1245305390

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Registry record

Entity type Individual (Type 1)

Name Dr. Douglas William Stewart

Credential DMD

Sex Male

Practice address 210 Whiting Street, Suite 2, Hingham, MA, 02043

Phone (781) 749-1119

Fax (781) 740-8033

Enumeration date Nov 22, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223E0200X Endodontics Dental Providers · License 10601 (MA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Douglas Stewart?

The National Provider Identifier (NPI) for Douglas Stewart is 1245305390, a Type 1 (individual) record in the CMS NPPES registry.

Where does Douglas Stewart practice?

The practice location on file with NPPES is in Hingham, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

John Dolbec Endodontics · Hingham, MA NPI 1437224482 Hingham Endodontics, Inc. Endodontics · Hingham, MA NPI 1386719334 Samer Khayat Prosthodontics · Hingham, MA NPI 1134258205

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.