Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Isaac Douglas Kenneth Lang, DPT

Q: What is the NPI number for Isaac Lang?

The National Provider Identifier (NPI) for Isaac Lang is 1720337165, a Type 1 (individual) record in the CMS NPPES registry.

Physical Therapist in Loma Linda, CA · enumerated 2012.

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

National Provider Identifier

1720337165

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Registry record

Entity type Individual (Type 1)

Name Dr. Isaac Douglas Kenneth Lang

Credential DPT

Sex Male

Practice address 25671 Carrol Ct, Loma Linda, CA, 92354

Phone (509) 540-6812

Enumeration date Aug 30, 2012

Last updated in NPPES Aug 30, 2012

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Isaac Lang practice?

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

What is the NPI number for Isaac Lang?

The National Provider Identifier (NPI) for Isaac Lang is 1720337165, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-30.