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Edit this profileWhere to find Duane D. Webb, MD
- Sequim location main office
840 N 5Th Ave Ste 1500, Sequim, WA 98382 - Kalispell location
320 Sunnyview Ln, Kalispell, MT 59901 - Great Falls location
1101 26th St S, Great Falls, MT 59405 - Bellingham location
4545 Cordata Pkwy Ste 1B, Bellingham, WA 98226
About Dr. Webb
Based in Sequim, WA, Duane D. Webb, MD is listed in the NPI registry under gastroenterology. Duane graduated from State University of New York at Stony Brook, School of Medicine in 1974. According to Medicare claims data, Duane cared for 230 Medicare patients across 235 services. The services billed most often include new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, biopsy of large bowel using a flexible endoscope, and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope. NPI 1881637742 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (360) 565-0999
- Email not available
Practice Locations
840 N 5TH AVE STE 1500
Sequim, WA 98382
320 Sunnyview Ln
Kalispell, MT 59901
1101 26th St S
Great Falls, MT 59405
4545 Cordata Pkwy Ste 1B
Bellingham, WA 98226
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
- Acute pancreatitis
- Gallstones
- Pancreatic cysts
- Primary sclerosing cholangitis
Colon and anorectal
- Anal fissure
- Colon cancer
- Colon polyps
- Lower gastrointestinal bleeding
Esophagus and swallowing
- Barrett's esophagus
- Eosinophilic esophagitis
- Esophageal stricture
- Esophagitis
Functional bowel and motility
- Chronic diarrhea
- Fecal incontinence
- Small intestinal bacterial overgrowth
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
- Functional dyspepsia
- Gastritis
- Gastroparesis
- H. pylori infection
- Peptic ulcer disease
Bowel & Colon
- Diverticulitis
Digestive Symptoms
- Constipation
Gallbladder & Bile Ducts
- Blocked Bile Duct
Procedures & services
Most searched procedures
- Colonoscopy
- Endoscopy
- Gallbladder removal
- Hernia repair
- Liver biopsy
Lower endoscopy
- Colon polyp removal
- Endoscopic control of gastrointestinal bleeding
- Flexible sigmoidoscopy
Upper endoscopy
- Endoscopic submucosal dissection
- Esophageal dilation
Capsule and physiology testing
- Anorectal manometry
- Capsule endoscopy
- Esophageal manometry
Diagnostic Testing
- 24-Hour Acid Reflux Test
- EUS-Guided Fine Needle Biopsy
- H. Pylori Breath Test
- SIBO Breath Test
Liver procedures
- Esophageal variceal banding
- Liver elastography
- Paracentesis
Treatments
- Stool Transplant
Procedures Most Often Billed to Medicare
235 services · 230 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
37 | As often as other peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
37 | Less often than most peers in Gastroenterology |
| Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | Procedure | 43249 |
12 | Less often than most peers in Gastroenterology |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
44 | More often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
26 | Less often than most peers in Gastroenterology |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
19 | Less often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
19 | As often as other peers in Gastroenterology |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
16 | Less often than most peers in Gastroenterology |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
14 | Less often than most peers in Gastroenterology |
| New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more | Office visit | 99202 |
11 | Less often than most peers in Gastroenterology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other gastroenterologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 21 related providers in 3 groups
Trained at State University of New York at Stony Brook, School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1974 at State University of New York at Stony Brook, School of Medicine 5
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in WA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Webb?
Dr. Webb is a gastroenterologist in Sequim, WA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
What is Dr. Webb's address?
Dr. Webb is listed at 840 N 5Th Ave Ste 1500, Sequim, WA 98382. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Webb?
The number on file is (360) 565-0999. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Webb's NPI number?
Dr. Webb's National Provider Identifier is 1881637742. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Webb train?
Dr. Webb attended State University of New York at Stony Brook, School of Medicine, graduating in 1974. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Webb been practicing?
Dr. Webb has 52 years experience. Calculated from a graduation year of 1974, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Webb perform?
According to Medicare billing data, Dr. Webb performs procedures including biopsy of large bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Webb confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Webb. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.