Doctor profile · Federal record

Dr. Stephen Wrenn, MD

Diagnostic Radiology Physician (CMS: Interventional Radiology) · Oakland, CA

  • NPI 1144555194
  • Accepts Medicare
  • 18 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
275 W Macarthur Blvd
Oakland, CA 946115641
(510) 752-1000

Credentials & registration

NPPES · NUCC
NPI registered
October 2009 — 17 yrs on file
Profile last updated
December 15, 2021
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
California #A110249

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144555194. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
81
Distinct HCPCS
2
Medicare allowed
$846
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 56 54 $10
71046 X-ray of chest, 2 views 25 25 $12

In context: peer comparison

Among 24 peers in Oakland Diagnostic Radiology Physician, average services per provider: 78. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$36
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 1 $26.71
Sirtex Medical INC 1 $9.05

By nature of payment

Food and Beverage
$36

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Wrenn's medical specialty?
Dr. Stephen Wrenn practices Diagnostic Radiology Physician in Oakland, CA.
Where does Dr. Stephen Wrenn practice?
Dr. Stephen Wrenn practices at 275 W Macarthur Blvd, Oakland, CA 946115641. Office phone: 5107521000.
What is Dr. Stephen Wrenn's NPI?
Dr. Stephen Wrenn's National Provider Identifier (NPI) is 1144555194, issued by NPPES.
Does Dr. Stephen Wrenn accept Medicare assignment?
Yes. Dr. Stephen Wrenn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Wrenn commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.