Doctor profile · Federal record

Dr. Johannes Decker, MD

Diagnostic Neuroimaging (Radiology) Physician (CMS: Diagnostic Radiology) · Diagnostic Radiology Physician · Stanford, CA

  • NPI 1558892075
  • Accepts Medicare
  • 9 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Additional location
453 Quarry RD
Palo Alto, CA 943041419
(650) 725-6344
Additional location
751 S Bascom Ave
San Jose, CA 951282604
(408) 885-5000

Credentials & registration

NPPES · NUCC
NPI registered
March 2017 — 9 yrs on file
Profile last updated
April 9, 2024
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
2085D0003X — NUCC code
State license (1)
California #A157187

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558892075. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
297
Distinct HCPCS
7
Medicare allowed
$16,331
HCPCS Description Services Patients Avg allowed
70450 Ct scan head or brain without contrast 133 132 $45
72125 Ct scan of upper spine without contrast 67 66 $53
70498 Ct scan of blood vessels of neck with contrast 26 26 $91
70496 Ct scan of blood vessels of head with contrast 21 21 $94
72131 Ct scan of lower spine without contrast 20 20 $52
72128 Ct scan of middle spine without contrast 16 16 $51
70486 Ct scan of face without contrast 14 13 $44

In context: peer comparison

Among 12 peers in this city , average services per provider: 186. This provider delivers 1.6× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Johannes Decker's medical specialty?
Dr. Johannes Decker practices Diagnostic Neuroimaging (Radiology) Physician in Stanford, CA.
Where does Dr. Johannes Decker practice?
Dr. Johannes Decker practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Johannes Decker's NPI?
Dr. Johannes Decker's National Provider Identifier (NPI) is 1558892075, issued by NPPES.
Does Dr. Johannes Decker accept Medicare assignment?
Yes. Dr. Johannes Decker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Johannes Decker commonly perform?
Top Medicare-reported procedures in 2023: Ct scan head or brain without contrast (HCPCS 70450); Ct scan of upper spine without contrast (HCPCS 72125); Ct scan of blood vessels of neck with contrast (HCPCS 70498). Source: CMS Medicare Physician & Other Practitioners file.