Doctor profile · Federal record

Dr. Robert Sudduth, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Silverdale, WA

  • NPI 1184651192
  • Accepts Medicare
  • 42 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2200 Nw Myhre RD
Silverdale, WA 983837681
(360) 830-1205
fax (360) 830-1281
Mailing address
9621 Ridgetop Blvd Nw
Silverdale, WA 983838502

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
March 7, 2023
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Washington #MD00025993
Medicaid
WA #8214132

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184651192. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
749
Distinct HCPCS
10
Medicare allowed
$87,972
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 287 285 $5
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 176 176 $244
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 72 72 $176
99214 Established patient office or other outpatient visit, 30-39 minutes 70 59 $127
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 53 53 $177
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope 25 25 $155
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 20 20 $101
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 17 17 $111
45378 Diagnostic exam of large bowel using a flexible endoscope 15 15 $170
99204 New patient office or other outpatient visit, 45-59 minutes 14 14 $156

In context: peer comparison

Among 2 peers in Silverdale Gastroenterology Physician, average services per provider: 96. This provider delivers 7.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$212
Transactions
10
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 7 $165.07
Janssen Biotech, INC. 2 $29.36
CapsoVision, INC. 1 $17.92

By nature of payment

Food and Beverage
$212

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
437
Patients
307
Total drug cost
$34,446
Drug Type Claims Patients Total cost
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 183 180 $3,425
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 51 51 $1,660
Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 42 40 $894
Sulfasalazine Generic 40 0 $1,281
Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 24 23 $447
Mercaptopurine Generic 22 0 $1,208
Mesalamine Generic 20 0 $15,642
Budesonide Dr (Budesonide) Brand 18 0 $3,330
Ondansetron Hcl Generic 13 13 $25
Ondansetron Odt (Ondansetron) Brand 13 0 $257

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Sudduth's medical specialty?
Dr. Robert Sudduth practices Gastroenterology Physician in Silverdale, WA.
Where does Dr. Robert Sudduth practice?
Dr. Robert Sudduth practices at 2200 Nw Myhre RD, Silverdale, WA 983837681. Office phone: 3608301205.
What is Dr. Robert Sudduth's NPI?
Dr. Robert Sudduth's National Provider Identifier (NPI) is 1184651192, issued by NPPES.
Does Dr. Robert Sudduth accept Medicare assignment?
Yes. Dr. Robert Sudduth accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Sudduth 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); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Colorectal cancer screening; colonoscopy on individual at high risk (HCPCS G0105). Source: CMS Medicare Physician & Other Practitioners file.