Doctor profile · Federal record

Dr. John Mardiat, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Vascular & Interventional Radiology Physician · Santa Barbara, CA

  • NPI 1801896675
  • Accepts Medicare
  • 47 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
316 W Junipero St
Santa Barbara, CA 931054305
(805) 448-5825
fax (805) 569-0079
Mailing address
Po Box 30820
Santa Barbara, CA 931300820

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
January 25, 2012
Year of graduation
1979 — 47 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
California #G44393
Medicaid
CA #00G443930

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801896675. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,806
Transactions
10
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Penumbra, Inc. 10 $1,805.70

By nature of payment

Food and Beverage
$968
Travel and Lodging
$838

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. John Mardiat's medical specialty?
Dr. John Mardiat practices Diagnostic Radiology Physician in Santa Barbara, CA.
Where does Dr. John Mardiat practice?
Dr. John Mardiat practices at 316 W Junipero St, Santa Barbara, CA 931054305. Office phone: 8054485825.
What is Dr. John Mardiat's NPI?
Dr. John Mardiat's National Provider Identifier (NPI) is 1801896675, issued by NPPES.
Does Dr. John Mardiat accept Medicare assignment?
Yes. Dr. John Mardiat accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.