Karim Diab, MD
NPI 1699978916 · Pediatric Cardiology Physician · Fairfax, VA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karim Diab, MD is a Pediatric Cardiology Physician provider in Fairfax, VA (NPI 1699978916).
Provider details
- NPI number
- 1699978916
- Entity type
- Individual
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101273321 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$165 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 1650 W Harrison St708 KellogChicago, IL 60612-3800Phone: (312) 942-6800
- 3300 Gallows RdFalls Church, VA 22042-3307Phone: (703) 776-4001Fax: (703) 776-7113
Registry dates
- Enumerated
- 2007-06-06
- Last updated
- 2022-04-29
- Certified
- 2022-04-29
Frequently asked questions
- What is Karim Diab's NPI number?
- Karim Diab's National Provider Identifier (NPI) is 1699978916, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karim Diab's specialty?
- Karim Diab is listed in the NPPES registry with a primary specialty of Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karim Diab located?
- Karim Diab's practice location on file with NPPES is 8260 Willow Oaks Corporate Dr Ste 400, Fairfax, VA 22031-4513.
- What is Karim Diab's phone number?
- The practice phone number listed in the NPPES registry for Karim Diab is (703) 573-0504.
- Does Karim Diab accept Medicare?
- Karim Diab is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karim Diab's NPI active?
- Yes — Karim Diab's NPI (1699978916) is active in the NPPES registry as of the last update on 2022-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.