Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James E Knowles

Physical Therapist in Stoneham, MA · enumerated 2010.

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

National Provider Identifier

1508171190

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Registry record

Entity type Individual (Type 1)

Name James E Knowles

Sex Male

Practice address 92 Montvale Ave, Suite 1400, Stoneham, MA, 02180

Phone (781) 279-8433

Fax (781) 279-8436

Enumeration date Aug 9, 2010

Last updated in NPPES Jun 17, 2026

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 19168 (MA) Primary

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.

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Frequently asked questions

How do I verify James Knowles's NPI record?

Cross-check NPI 1508171190 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1508171190 active?

Yes, as of the latest NPPES snapshot, NPI 1508171190 is active (record last updated 2026-06-17).

Other providers at this practice address

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William Doherty Specialist · Stoneham, MA NPI 1669466223 Larah Bartlett-Jacques Adult Health Nurse Practitioner · Stoneham, MA NPI 1407837230 Julianne Stoughton Surgery Physician · Stoneham, MA NPI 1033191671 Donald Colantino Internal Medicine Physician · Stoneham, MA NPI 1225008410 Sangeeta Banerjee Psychiatry Physician · Stoneham, MA NPI 1285605907 Peter Gee Specialist · Stoneham, MA NPI 1104890268 Jonathan Hall Plastic and Reconstructive Surgery Physician · Stoneham, MA NPI 1912974163 Michelle Lock Pediatrics Physician · Stoneham, MA NPI 1134183429

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-17.