Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karim A Diab, MD

Pediatric Cardiology Physician in Fairfax, VA · enumerated 2007.

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

National Provider Identifier

1699978916

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Registry record

Entity type Individual (Type 1)

Name Karim A Diab

Credential MD

Sex Male

Practice address 8260 Willow Oaks Corporate Dr Ste 400, Fairfax, VA, 22031

Phone (703) 573-0504

Fax (703) 573-4856

Enumeration date Jun 6, 2007

Last updated in NPPES Apr 29, 2022

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 0101273321 (VA) Secondary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 37054 (AZ) Secondary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 0101273321 (VA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

How do I verify Karim Diab's NPI record?

Cross-check NPI 1699978916 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1699978916 active?

Yes, as of the latest NPPES snapshot, NPI 1699978916 is active (record last updated 2022-04-29).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-29.