NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lisa Lynn Maher, ARNP

Family Nurse Practitioner in Waterloo, IA · enumerated 2009.

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

National Provider Identifier

1003054305

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Lisa Lynn Maher
Credential ARNP
Sex Female
Practice address 419 East Donald Street, Waterloo, IA, 50703
Phone (319) 236-1911
Fax (319) 287-5832
Enumeration date Jan 26, 2009
Last updated in NPPES Mar 11, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License A114046 (IA) Primary

Other identifiers

Identifier Type State Issuer
421417307-UZ Other IA UHC/RIVER VALLEY/JD
P00704358 (PTAN) Other IA RR MEDICARE
1003054305 Other IA WELLMARK BCBS
1003054305 Medicaid IA -

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

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 Lisa Maher?
Lisa Maher is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-11.