Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Mark Christian Portaro, P.T.

Physical Therapist in New Albany, IN · enumerated 2006.

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

National Provider Identifier

1558380626

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark Christian Portaro

Credential P.T.

Sex Male

Practice address 2125 State St, Suite 2, New Albany, IN, 47150

Phone (812) 948-2947

Fax (812) 948-4164

Enumeration date Jul 19, 2006

Last updated in NPPES Dec 7, 2020

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 05003695A (IN) 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
200360530A	Medicaid	IN	-

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

What specialty is Mark Portaro?

Mark Portaro 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-07.