Doctor profile · Federal record

Dr. Derek Clark, M.D.

Neurocritical Care Physician (CMS: Neurology) · Neurology Physician · Neurology Physician · Portland, OR

  • NPI 1518283589
  • Accepts Medicare
  • 16 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
9135 Sw Barnes RD Ste 461
Portland, OR 972256643
(503) 216-1150
Additional location
500 17Th Ave
Seattle, WA 981225711
(206) 320-2800
fax (206) 320-2827
Mailing address
Po Box 3158
Portland, OR 972083158

Credentials & registration

NPPES · NUCC
NPI registered
April 2010 — 16 yrs on file
Profile last updated
November 25, 2022
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
2084A2900X — NUCC code
State licenses (2)
Oregon #MD158550 · Washington #MD60658145

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518283589. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
86
Distinct HCPCS
2
Medicare allowed
$15,506
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 66 31 $212
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 20 19 $77

In context: peer comparison

Among 5 peers in Portland Neurocritical Care Physician, average services per provider: 44. This provider delivers 2.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Derek Clark's medical specialty?
Dr. Derek Clark practices Neurocritical Care Physician in Portland, OR.
Where does Dr. Derek Clark practice?
Dr. Derek Clark practices at 9135 Sw Barnes RD Ste 461, Portland, OR 972256643. Office phone: 5032161150.
What is Dr. Derek Clark's NPI?
Dr. Derek Clark's National Provider Identifier (NPI) is 1518283589, issued by NPPES.
Does Dr. Derek Clark accept Medicare assignment?
Yes. Dr. Derek Clark accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Derek Clark commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.