Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Gregory Worthing Masiko, MS, PT

Physical Therapist in Glen Mills, PA · enumerated 2005 · practices at Orthopedic and Sports Physical Therapy Services, Inc..

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

National Provider Identifier

1699773960

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Registry record

Entity type Individual (Type 1)

Name Mr. Gregory Worthing Masiko

Credential MS, PT

Sex Male

Practice address 331 Wilmington Pike, Suite 1, Glen Mills, PA, 19342

Phone (610) 558-5866

Enumeration date Jul 12, 2005

Last updated in NPPES Apr 16, 2008

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT016673 (PA) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Other identifiers

Identifier	Type	State	Issuer
1650476	Other	PA	BC/BS HMO
7158567	Other	PA	AETNA
2327928000	Other	PA	BC/BS PPO

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

What is the NPI number for Gregory Masiko?

The National Provider Identifier (NPI) for Gregory Masiko is 1699773960, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregory Masiko practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-16.