Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Clayton Joseph Cassidy, DPM

Foot & Ankle Surgery Podiatrist in Lorain, OH · enumerated 2022.

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

National Provider Identifier

1780320663

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Registry record

Entity type Individual (Type 1)

Name Dr. Clayton Joseph Cassidy

Credential DPM

Sex Male

Practice address Lorain, OH, 44053

Phone (440) 960-4000

Enumeration date May 12, 2022

Last updated in NPPES Jun 28, 2022

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

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

213ES0103X Foot & Ankle Surgery Podiatrist Podiatric Medicine & Surgery Service Providers · License 59.000962 (OH) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM 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 Clayton Cassidy practice?

The practice location on file with NPPES is in Lorain, OH. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Clayton Cassidy?

The National Provider Identifier (NPI) for Clayton Cassidy is 1780320663, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Michael Choban Anesthesiology Physician · Lorain, OH NPI 1841291341 Lee Zalud Internal Medicine Physician · Lorain, OH NPI 1609877893 Virginia Stevenson Certified Registered Nurse Anesthetist · Lorain, OH NPI 1124012794 Eswari Sivanandam Anatomic Pathology & Clinical Pathology Physician · Lorain, OH NPI 1447223227 Won Lee Anatomic Pathology & Clinical Pathology Physician · Lorain, OH NPI 1164496659 Heather Scullin Physical Medicine & Rehabilitation Physician · Lorain, OH NPI 1285608539 Peter Harroff Obstetrics & Gynecology Physician · Lorain, OH NPI 1144295940 Patricia Yost Gynecology Physician · Lorain, OH NPI 1770550428

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-28.