NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marissa Anderson, DPT, PT

Physical Medicine & Rehabilitation Physician in Lake Mills, WI · enumerated 2024 · practices at Optimal Physical Therapy, LLC.

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

National Provider Identifier

1033950894

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Marissa Anderson
Credential DPT, PT
Sex Female
Practice address 805 Elm St, Lake Mills, WI, 53551
Phone (920) 941-0464
Fax (920) 648-2444
Enumeration date Jun 5, 2024
Last updated in NPPES Jun 5, 2024

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 16804-24 (WI) Primary
DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT credential

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 is the NPI number for Marissa Anderson?
The National Provider Identifier (NPI) for Marissa Anderson is 1033950894, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marissa Anderson practice?
The practice location on file with NPPES is in Lake Mills, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-05.