Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Bryan Dieffenbach, MD

Individual provider Vascular Surgery Physician · NPI 1326466137

Bryan Dieffenbach, MD is a Vascular Surgery in San Diego, California. Graduated from University of California, San Diego School of Medicine in 2014, 12 years ago. Practices as a sole proprietor, works from 4 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
12
Trained at
University of California, San Diego School of Medicine
Licensed in
CA
In the registry since
2014
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

550 Washington St Ste 641
San Diego, CA 92103-2229
Phone: (619) 299-2600
Fax: (619) 299-3923
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 9300 Campus Point Dr, La Jolla, CA 92037-1300 — (800) 926-8273
  • 200 W Arbor Dr, San Diego, CA 92103-9000 — (800) 926-8273
  • 6655 Alvarado Rd, San Diego, CA 92120-5208 — (800) 926-8273

Specialties & licences

Vascular Surgery Physician (primary) Taxonomy 2086S0129X · Licence A188066 (CA)

Record details

NPI number1326466137
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 31, 2014
Last updated in NPPESMay 14, 2025
Certification dateMay 14, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyVASCULAR SURGERY
Also practisesGENERAL SURGERY
Medical schoolUNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in San Diego