Doctor profile · Federal record

Dr. William Tanner, M.D.

Body Imaging Physician (CMS: Diagnostic Radiology) · Walnut Creek, CA

  • NPI 1457383929
  • Accepts Medicare
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2125 Oak Grove RD Ste 200
Walnut Creek, CA 945982520
(925) 296-7150
Additional location
411 30Th St, #508
Oakland, CA 946093310
(925) 274-4950
Mailing address
2152 Clinton Ave, Apt C
Alameda, CA 945016618

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
December 20, 2021
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
2085B0100X — NUCC code
State license (1)
California #A63125
Medicaid
CA #00A631250

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457383929. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
156
Distinct HCPCS
5
Medicare allowed
$5,951
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 55 51 $9
77067 Screening mammography 47 24 $69
70450 Ct scan head or brain without contrast 21 20 $42
71046 X-ray of chest, 2 views 21 21 $11
74177 Ct scan of abdomen and pelvis with contrast 12 12 $92

In context: peer comparison

Among 1 peers in Walnut Creek Body Imaging Physician, average services per provider: 31. This provider delivers 5.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. William Tanner's medical specialty?
Dr. William Tanner practices Body Imaging Physician in Walnut Creek, CA.
Where does Dr. William Tanner practice?
Dr. William Tanner practices at 2125 Oak Grove RD Ste 200, Walnut Creek, CA 945982520. Office phone: 9252967150.
What is Dr. William Tanner's NPI?
Dr. William Tanner's National Provider Identifier (NPI) is 1457383929, issued by NPPES.
Does Dr. William Tanner accept Medicare assignment?
Yes. Dr. William Tanner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Tanner commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Screening mammography (HCPCS 77067); Ct scan head or brain without contrast (HCPCS 70450). Source: CMS Medicare Physician & Other Practitioners file.