Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Julie A Poulin Siefert, PT

Physical Therapist in Neenah, WI · enumerated 2008.

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

National Provider Identifier

1245403062

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Registry record

Entity type Individual (Type 1)

Name Ms. Julie A Poulin Siefert

Credential PT

Sex Female

Practice address Neenah, WI, 54956

Phone (920) 720-0701

Enumeration date Apr 13, 2008

Last updated in NPPES Apr 13, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5038-024 (WI) 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
40273200	Medicaid	WI	-
265-039	Other	WI	ATHLETIC TRAINER LICENSE
L1181510	Other	MI	PHYSICAL THERAPY LICENSE
5038-024	Other	WI	PHYSICAL THERAPIST LICENS

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 Julie Poulin Siefert?

Julie Poulin Siefert 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.

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