Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Kassondra Mellen, PHYSICIAN ASSISTANT
Physician Assistant in Mesa, AZ · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1245418839
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Kassondra Mellen
Credential PHYSICIAN ASSISTANT
Sex Female
Practice address 1432 S Dobson Rd Ste 301, Mesa, AZ, 85202
Phone (480) 464-9400
Enumeration date Feb 5, 2008
Last updated in NPPES Jul 31, 2023
Taxonomy & licenses
363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 3773 (AZ) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 3773 (AZ) Primary
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.
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 Kassondra Mellen?
Kassondra Mellen is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Heidi Cox Pediatric Surgery Physician · Mesa, AZ NPI 1801822168 Lindsay Ruder Surgical Physician Assistant · Mesa, AZ NPI 1851608418 Kristina Gaetano Physician Assistant · Mesa, AZ NPI 1538469127 Jenna Ternes Medical Physician Assistant · Mesa, AZ NPI 1750632964 Nicole Hayes Physician Assistant · Mesa, AZ NPI 1700214897 Reena Marie Ygot Physician Assistant · Mesa, AZ NPI 1184219693 Alejandra Berardinelli Pediatric Nurse Practitioner · Mesa, AZ NPI 1093452427
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-31.