Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary A Volkmann, PHYSICAL THERAPIST

Physical Therapist in Sturgeon Bay, WI · enumerated 2006.

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

National Provider Identifier

1922115674

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Registry record

Entity type Individual (Type 1)

Name Mary A Volkmann

Credential PHYSICAL THERAPIST

Sex Female

Practice address 1300 Egg Harbor Rd Ste 152, Sturgeon Bay, WI, 54235

Phone (920) 746-0410

Enumeration date Aug 25, 2006

Last updated in NPPES Aug 7, 2024

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 393-039 (WI) Secondary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 6330-024 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
40320500	Medicaid	WI	-

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 Mary Volkmann?

Mary Volkmann 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 2024-08-07.