NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Riddle Endocrinology & Metabolism Associates, PC

Endocrinology, Diabetes & Metabolism Physician in Aston, PA · enumerated 2009 · authorized official Rex Kessler, Manager.

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

National Provider Identifier

1164659140

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Riddle Endocrinology & Metabolism Associates, PC
Practice address 2901 Dutton Mill Rd, Ste 110, Aston, PA, 19014
Phone (610) 876-2300
Fax (610) 876-3004
Enumeration date Jun 17, 2009
Last updated in NPPES Oct 3, 2012

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD035193E (PA) Secondary
207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License MD436772 (PA) Primary

Authorized official

Name Rex Kessler
Title Manager
Phone (610) 876-2300

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 is Riddle Endocrinology & Metabolism Associates, PC located?
The practice location on file with NPPES is in Aston, PA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-10-03. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-03.