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Edit this profileAt a glance
- 320 Sunnyview Ln, Kalispell, MT 59901
About Dr. Simpson
William G. Simpson, M.D. is a healthcare provider in Kalispell, MT specializing in gastroenterology. William trained at University of Kentucky College of Medicine, graduating in 1998. According to Medicare claims data, William cared for 847 Medicare patients across 884 services. The services billed most often include removal of polyps or growths of large bowel using an endoscope with mechanical snare, balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm, and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope. This provider record is associated with NPI 1487655346.
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
- (406) 752-7441
- Email not available
Practice Locations
320 SUNNYVIEW LN
Kalispell, MT 59901
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
Esophagus and swallowing
- Barrett's esophagus
- Eosinophilic esophagitis
- Esophageal stricture
- Esophagitis
Functional bowel and motility
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
Digestive Symptoms
Gallbladder & Bile Ducts
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
Procedures Most Often Billed to Medicare
884 services · 847 patients · 20 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
156 | More 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 |
107 | More than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
99 | More often than most peers in Gastroenterology |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
59 | More often than most peers in Gastroenterology |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
42 | More often than most peers in Gastroenterology |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
25 | More often than most peers in Gastroenterology |
| Measurement of liver stiffness | Treatment | 91200 |
28 | As often as other peers in Gastroenterology |
| Imaging of digestive tract done from the inside of the digestive tract | Treatment | 91110 |
24 | More often than most peers in Gastroenterology |
| Monitoring and recording of esophageal function through a capsule attached to the esophagus wall | Treatment | 91035 |
21 | 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 |
51 | More 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 4
Same specialty, same street address — most likely the same department or group.
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.
Other gastroenterologists in Kalispell 2
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of Kentucky College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at University of Kentucky College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 7
Providers in MT who bill this service to Medicare most often.
Common questions
What does William G. Simpson specialize in?
William G. Simpson is a gastroenterologist in Kalispell, MT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is William G. Simpson located?
William G. Simpson is listed at 320 Sunnyview Ln, Kalispell, MT 59901. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is William G. Simpson's phone number?
The number on file is (406) 752-7441. Contact the office directly to confirm availability and scheduling.
NPI registry
What is William G. Simpson's NPI number?
William G. Simpson's National Provider Identifier is 1487655346. 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 William G. Simpson train?
William G. Simpson attended University of Kentucky College of Medicine, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has William G. Simpson been practicing?
William G. Simpson has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What does William G. Simpson do most often?
According to Medicare billing data, William G. Simpson performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope; provides treatments such as measurement of liver stiffness and imaging of digestive tract done from the inside of the digestive tract, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has William G. Simpson confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by William G. Simpson. If this is you, claiming it is free.
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