NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Seth J Aaron, RPH

Pharmacist in Merion Station, PA · enumerated 2020 · practices at Neff-Merion Enterprises Inc.

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

National Provider Identifier

1902427453

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Seth J Aaron
Credential RPH
Sex Male
Practice address 338 Montgomery Ave, Merion Station, PA, 19066
Phone (610) 664-4815
Enumeration date May 6, 2020
Last updated in NPPES May 6, 2020

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License A1-0004798 (DE) Secondary
183500000X Pharmacist Pharmacy Service Providers · License RP450318 (PA) Primary
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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

Where does Seth Aaron practice?
The practice location on file with NPPES is in Merion Station, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Seth Aaron?
The National Provider Identifier (NPI) for Seth Aaron is 1902427453, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-06.