Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John T Marmarou, DPT, MSCS

Neurology Physical Therapist in Waltham, MA · enumerated 2007.

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

National Provider Identifier

1598954679

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Registry record

Entity type Individual (Type 1)

Name Dr. John T Marmarou

Credential DPT, MSCS

Sex Male

Practice address 179 Bear Hill Rd Ste 105, Waltham, MA, 02451

Phone (609) 202-5353

Fax (781) 895-4800

Enumeration date Oct 15, 2007

Last updated in NPPES Aug 29, 2023

Taxonomy & licenses

2251N0400X Neurology Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 40QA01146300 (NJ) Secondary

2251N0400X Neurology Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 21126 (MA) Primary

DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT 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.

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Frequently asked questions

Is NPI 1598954679 active?

Yes, as of the latest NPPES snapshot, NPI 1598954679 is active (record last updated 2023-08-29).

How do I verify John Marmarou's NPI record?

Cross-check NPI 1598954679 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-29.