Doctor profile · Federal record

Dr. Murray Larsen, MD

Gastroenterology Physician (CMS: Gastroenterology) · Clarkston, WA

  • NPI 1568451102
  • Accepts Medicare
  • 46 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
625 6Th St
Clarkston, WA 994032010
(509) 758-2200
fax (509) 758-6511

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
January 29, 2024
Year of graduation
1980 — 46 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Washington #MD00029346
Medicaid (2)
ID #0027334 · WA #2039081

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568451102. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,375
Distinct HCPCS
9
Medicare allowed
$112,748
HCPCS Description Services Patients Avg allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito 639 509 $5
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope 255 195 $155
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 143 139 $58
45380 Biopsy of large bowel using a flexible endoscope 128 128 $138
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 111 111 $243
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 38 38 $176
45378 Diagnostic exam of large bowel using a flexible endoscope 25 25 $179
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 24 24 $179
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 12 11 $119

In context: peer comparison

Among 1 peers in this city , average services per provider: 152. This provider delivers 9.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Murray Larsen's medical specialty?
Dr. Murray Larsen practices Gastroenterology Physician in Clarkston, WA.
Where does Dr. Murray Larsen practice?
Dr. Murray Larsen practices at 625 6Th St, Clarkston, WA 994032010. Office phone: 5097582200.
What is Dr. Murray Larsen's NPI?
Dr. Murray Larsen's National Provider Identifier (NPI) is 1568451102, issued by NPPES.
Does Dr. Murray Larsen accept Medicare assignment?
Yes. Dr. Murray Larsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Murray Larsen commonly perform?
Top Medicare-reported procedures in 2023: Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500); Insertion of guide wire with dilation of esophagus using a flexible endoscope (HCPCS 43248); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.