NPI Portal NPI Lookup & Verification

Aaron D Lesser

Aaron D Lesser is a Behavior Analyst provider (Behavior Analyst) practicing in Omaha, NE, registered in the NPPES registry with NPI 1215277710 since 2013. Practices at University of Nebraska Medical Center (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1215277710
Entity type Individual (Type 1)
Name Aaron D Lesser
Sex Male
Practice address Omaha, NE, 68198
Phone 4025598863
Enumeration date 2013-02-20
Last updated in NPPES 2015-06-18

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
103K00000X Behavior Analyst Primary 1-11-8711 MD
390200000X Student in an Organized Health Care Education/Training Program Secondary 1-11-8711 MD
Copy-ready billing details
Provider: Aaron Lesser
NPI: 1215277710
Taxonomy: 103K00000X (Behavior Analyst)
Address: Omaha, NE, 68198

Other providers at this practice address

NPI Name Type Specialty Location
1235212432 Joseph Evans Individual Cognitive & Behavioral Psychologist Omaha, NE
1730266909 Susan Fager Individual Speech-Language Pathologist Omaha, NE
1013056076 Susan Riley Individual Pediatric Physical Therapist Omaha, NE
1952598872 Margaret Floress Individual Psychologist Omaha, NE
1114106846 Bradley Corr Individual Physical Therapist Omaha, NE
1982888012 Jody Lieske Individual Clinical Psychologist Omaha, NE
1467621425 Tiffany Kodak Individual Clinical Child & Adolescent Psychologist Omaha, NE
1841451572 Rhonda Turner Individual Clinical Psychologist Omaha, NE

Verify this record

Cross-check NPI 1215277710 against the authoritative CMS record: view Aaron D Lesser on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Aaron Lesser?
Aaron Lesser is registered in NPPES with the primary taxonomy of Behavior Analyst. 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 2026-07-11. Provider record last updated 2015-06-18.