Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Mark Aris Macasieb, RPT

Physical Therapist in Sebring, FL · enumerated 2008.

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

National Provider Identifier

1104076983

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark Aris Macasieb

Credential RPT

Sex Male

Practice address 725 S Pine St, Sebring, FL, 33870

Phone (863) 471-9989

Fax (863) 471-9989

Enumeration date Sep 29, 2008

Last updated in NPPES Sep 29, 2008

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT23846 (FL) 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Mark Macasieb?

Mark Macasieb is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-29.