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BRYAN DIEFFENBACH, INC.
NPI 1871276386
Surgery - Vascular Surgery in San Diego, CA

Active since August 10, 2023
550 WASHINGTON ST STE 641, SAN DIEGO, CA 92103(619) 299-2600(619) 299-3923 Get Directions Write a Review

NPPES record last updated: August 10, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Bryan Dieffenbach, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BRYAN DIEFFENBACH, INC. (NPI 1871276386) is a healthcare organization registered as a vascular surgery in San Diego, California and active in the NPI registry since August 2023. The organization lists Bryan Dieffenbach, President, as its authorized official.

NPPES Registry Identity

NPI1871276386
Entity TypeOrganization
Primary Taxonomy2086S0129X
Legal Business NameBRYAN DIEFFENBACH, INC.
Location Address550 WASHINGTON ST STE 641San Diego, CA 92103-2229
Mailing Address550 Washington St Ste 641San Diego, CA 92103-2229 · (619) 298-3100
Phone(619) 299-2600
Fax(619) 299-3923
Organization SubpartNo
Authorized OfficialBryan DieffenbachPresident · (619) 298-3100
Enumeration DateAugust 10, 2023
NPPES CertifiedAugust 10, 2023
✔ NPI 1871276386 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
550 WASHINGTON ST STE 641, San Diego, CA 92103
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Bryan Dieffenbach, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Bryan Dieffenbach, Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Bryan Dieffenbach, M.D.
Vascular Surgery
NPI 1326466137
550 WASHINGTON ST STE 641
San Diego, CA 92103
(619) 299-2600
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Bryan Dieffenbach, Inc.'s NPI number?

The NPI number for Bryan Dieffenbach, Inc. is 1871276386. It was assigned to this organization in the NPPES registry on August 10, 2023.

Where is Bryan Dieffenbach, Inc. located?

Bryan Dieffenbach, Inc. is located at 550 Washington St Ste 641, San Diego, CA 92103. The listed phone number is (619) 299-2600.

What is Bryan Dieffenbach, Inc.'s specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Bryan Dieffenbach, Inc. enrolled in Medicare?

Yes. Bryan Dieffenbach, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Bryan Dieffenbach, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Vascular Surgery) reassigns their Medicare billing to Bryan Dieffenbach, Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Bryan Dieffenbach, Inc. was last updated on August 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.