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Edit this profileAt a glance
- 210 Portland St Ste 100, Columbia, MO 65201
About Dr. Williams
Michael D. Williams, MD is a healthcare provider in Columbia, MO specializing in gastroenterology. Michael trained at University of Missouri, Columbia School of Medicine, graduating in 2003. According to Medicare claims data, Michael cared for 1,692 Medicare patients across 20,545 services. The services billed most often include injection, vedolizumab, intravenous, 1 mg, pathology examination of tissue using a microscope, intermediate complexity, and chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month. This provider record is associated with NPI 1750334470.
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
- (573) 777-8818
- Email not available
Practice Locations
210 PORTLAND ST STE 100
Columbia, MO 65201
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
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
20,545 services · 1,692 patients · 19 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 |
235 | More than most peers in Gastroenterology |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
231 | More than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
208 | More 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 |
66 | More than most peers in Gastroenterology |
| Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43255 |
26 | More often than most peers in Gastroenterology |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
26 | More often than most peers in Gastroenterology |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
14 | Less often than most peers in Gastroenterology |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
82 | More than most peers in Gastroenterology |
| Imaging of digestive tract done from the inside of the digestive tract | Treatment | 91110 |
31 | More often than most peers in Gastroenterology |
| Injection, vedolizumab, intravenous, 1 mg | Drug given | J3380 |
17,400 | 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 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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 — 29 related providers in 4 groups
Other gastroenterologists in Columbia 6
Same specialty, same city.
Trained at University of Missouri, Columbia School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at University of Missouri, Columbia School of Medicine 7
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 8
Providers in MO who bill this service to Medicare most often.
Common questions
What does Dr. Williams specialize in?
Dr. Williams is a gastroenterologist in Columbia, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Dr. Williams located?
Dr. Williams is listed at 210 Portland St Ste 100, Columbia, MO 65201. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Williams's phone number?
The number on file is (573) 777-8818. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Williams's NPI number?
Dr. Williams's National Provider Identifier is 1750334470. 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. Williams go to medical school?
Dr. Williams attended University of Missouri, Columbia School of Medicine, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Williams been practicing?
Dr. Williams has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Williams do most often?
According to Medicare billing data, Dr. Williams performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of large bowel using a flexible endoscope and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope; provides treatments such as infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 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 Dr. Williams confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Williams. If this is you, claiming it is free.
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