Doctor profile · Federal record

Dr. Stephen Bader, MD

Radiation Oncology Physician · Portland, OR

  • NPI 1790787422
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4805 Ne Glisan St, Garden Level
Portland, OR 972132933
(503) 215-6029
fax (503) 215-6387
Additional location
9280 Se Sunnybrook Blvd Ste 100
Clackamas, OR 970159315
(503) 513-3300
fax (503) 513-3310
Mailing address
541 Ne 20Th Ave Ste 225
Portland, OR 972322895

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
December 5, 2023
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
Oregon #MD17045
Medicaid (2)
OR #029657 · WA #8128688

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1790787422. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
622
Distinct HCPCS
10
Medicare allowed
$73,539
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 201 59 $45
77300 Calculation of radiation therapy dose 105 36 $33
77427 Radiation treatment management, 5 treatment sessions 80 19 $194
77334 Design and construction of complex radiation treatment device 51 37 $61
77263 Complex radiation therapy planning 40 38 $171
99205 New patient office or other outpatient visit, 60-74 minutes 37 37 $181
77301 High precision radiation therapy planning 28 25 $429
77338 Design and construction of radiation treatment device for high precision radiation therapy 28 24 $230
77295 3d radiation therapy planning 21 21 $230
77014 Ct guidance for insertion of radiation therapy fields 20 16 $46

In context: peer comparison

Among 17 peers in this city , average services per provider: 52. This provider delivers 12× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
98
Patients
44
Total drug cost
$1,398
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 84 31 $1,323
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 14 13 $76

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Bader's medical specialty?
Dr. Stephen Bader practices Radiation Oncology Physician in Portland, OR.
Where does Dr. Stephen Bader practice?
Dr. Stephen Bader practices at 4805 Ne Glisan St, Portland, OR 972132933. Office phone: 5032156029.
What is Dr. Stephen Bader's NPI?
Dr. Stephen Bader's National Provider Identifier (NPI) is 1790787422, issued by NPPES.
What procedures does Dr. Stephen Bader commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Calculation of radiation therapy dose (HCPCS 77300); Radiation treatment management, 5 treatment sessions (HCPCS 77427). Source: CMS Medicare Physician & Other Practitioners file.