Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gwyneth Ellen Markowitz, PA

Physician Assistant in Mentor, OH · enumerated 2025.

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

National Provider Identifier

1124904479

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Registry record

Entity type Individual (Type 1)

Name Gwyneth Ellen Markowitz

Credential PA

Sex Female

Practice address 9485 Mentor Ave, Mentor, OH, 44060

Phone (440) 701-6612

Enumeration date Aug 13, 2025

Last updated in NPPES Aug 13, 2025

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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.

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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 Gwyneth Markowitz?

Gwyneth Markowitz 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

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Jerome Privitera Foot & Ankle Surgery Podiatrist · Mentor, OH NPI 1639173628 Paul Eisenberg Foot Surgery Podiatrist · Mentor, OH NPI 1750386629 Ronald Posner Ophthalmology Physician · Mentor, OH NPI 1952306961 Mentor Surgery Center Ltd Ambulatory Surgical Clinic/Center · Mentor, OH NPI 1417958729 Howard Lee Pain Medicine (Physical Medicine & Rehabilitation) Physician · Mentor, OH NPI 1477548634 James Macy General Practice Dentistry · Mentor, OH NPI 1538121520 Jacqueline Cerar General Practice Dentistry · Mentor, OH NPI 1144283227 Lake Hospital System Inc Pediatrics Physician · Mentor, OH NPI 1013951920

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-13.