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James Michael Isaacs

Medical Oncology Physician in Cleveland, OH · enumerated 2016 · practices at The Cleveland Clinic Foundation.

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

National Provider Identifier

1629423934

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Registry record

Entity type Individual (Type 1)
Name James Michael Isaacs
Sex Male
Practice address 10201 Carnegie Ave, Cleveland, OH, 44106
Phone (866) 223-8100
Enumeration date Apr 25, 2016
Last updated in NPPES Jul 12, 2022

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 35.144466 (OH) Primary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

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

How do I verify James Isaacs's NPI record?
Cross-check NPI 1629423934 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1629423934 active?
Yes, as of the latest NPPES snapshot, NPI 1629423934 is active (record last updated 2022-07-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-12.