Doctor profile · Federal record

Dr. DAVID O'BRIEN, MD

Colon & Rectal Surgery Physician (CMS: COLORECTAL SURGERY (PROCTOLOGY)) · Surgery Physician · PORTLAND, OR

  • NPI 1669440350
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4805 NE GLISAN ST, SUITE 6N60
PORTLAND, OR 972132933
(503) 281-0561
fax (503) 416-7377
Additional location
9155 SW Barnes Rd Ste 735
Portland, OR 972256634
Mailing address
541 NE 20TH AVE STE 225
PORTLAND, OR 972322895

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
November 6, 2024
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
208C00000X — NUCC code
State license (1)
Oregon #MD28214
Medicaid (2)
OR #272697 · WA #8508939

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669440350. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
239
Distinct HCPCS
7
Medicare allowed
$34,528
HCPCS Description Services Patients Avg allowed
45300 Diagnostic exam of rectum and lower large bowel using an endoscope 68 62 $126
99214 Established patient office or other outpatient visit, 30-39 minutes 49 42 $131
99204 New patient office or other outpatient visit, 45-59 minutes 38 38 $169
99215 Established patient office or other outpatient visit, 40-54 minutes 25 19 $183
99205 New patient office or other outpatient visit, 60-74 minutes 23 23 $213
99213 Established patient office or other outpatient visit, 20-29 minutes 23 21 $93
99203 New patient office or other outpatient visit, 30-44 minutes 13 13 $114

In context: peer comparison

Among 10 peers in this city , average services per provider: 24. This provider delivers 10.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$292
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Integra LifeSciences Corporation 1 $174.42
ABBVIE INC. 1 $117.48

By nature of payment

Food and Beverage
$292

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
49
Patients
48
Total drug cost
$230
Drug Type Claims Patients Total cost
Ciprofloxacin Hcl Generic 18 18 $68
Metronidazole Generic 18 18 $90
Oxycodone Hcl Generic 13 12 $73