What is David Diffley's NPI number?

David Diffley's National Provider Identifier (NPI) is 1679524631, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is David Diffley's specialty?

David Diffley is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).

Where is David Diffley located?

David Diffley's practice location on file with NPPES is 815 Pennsylvania Ave, Fort Worth, TX 76104-2224.

What is David Diffley's phone number?

The practice phone number listed in the NPPES registry for David Diffley is (817) 321-0312.

Is David Diffley's NPI active?

Yes — David Diffley's NPI (1679524631) is active in the NPPES registry as of the last update on 2012-08-14.

IndividualActive

David Diffley, MD

NPI 1679524631 · Diagnostic Radiology Physician · Fort Worth, TX

David Diffley, MD is a Diagnostic Radiology Physician provider in Fort Worth, TX (NPI 1679524631).

Provider details

NPI number: 1679524631
Entity type: Individual
Primary specialty: Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: H4001 (TX)

Specialties & taxonomies

Diagnostic Radiology PhysicianPrimary2085R0202XLicense H4001 (TX)
Allopathic & Osteopathic Physicians
Body Imaging Physician2085B0100XLicense H4001 (TX)
Allopathic & Osteopathic Physicians
Neuroradiology Physician2085N0700XLicense H4001 (TX)
Allopathic & Osteopathic Physicians
Nuclear Radiology Physician2085N0904XLicense H4001 (TX)
Allopathic & Osteopathic Physicians
Pediatric Radiology Physician2085P0229XLicense H4001 (TX)
Allopathic & Osteopathic Physicians
Vascular & Interventional Radiology Physician2085R0204XLicense H4001 (TX)

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

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.

Practice location

815 Pennsylvania Ave

Fort Worth, TX 76104-2224

Phone: (817) 321-0312

Fax: (817) 317-7033

Street-level locationGet directions

More TX providers

Mailing address

816 W Cannon St

Fort Worth, TX 76104-3146

Enumerated: 2006-05-15
Last updated: 2012-08-14

Frequently asked questions

What is David Diffley's NPI number?: David Diffley's National Provider Identifier (NPI) is 1679524631, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is David Diffley's specialty?: David Diffley is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
Where is David Diffley located?: David Diffley's practice location on file with NPPES is 815 Pennsylvania Ave, Fort Worth, TX 76104-2224.
What is David Diffley's phone number?: The practice phone number listed in the NPPES registry for David Diffley is (817) 321-0312.
Is David Diffley's NPI active?: Yes — David Diffley's NPI (1679524631) is active in the NPPES registry as of the last update on 2012-08-14.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.