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Edit this profileAt a glance
- 901 Patients First Drive Suite 3300, Washington, MO 63090
About Dr. Frederickson
Nicholas W. Frederickson, M.D. is a healthcare provider in Washington, MO specializing in gastroenterology. Nicholas trained at Saint Louis University School of Medicine, graduating in 2010. Nicholas is also listed as specializing in internal medicine. Medicare claims data shows Nicholas provided 306 services to 301 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, removal of polyps or growths of large bowel using an endoscope with mechanical snare, and biopsy of large bowel using a flexible endoscope. This provider record is associated with NPI 1154640225.
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
- (636) 239-7344
- Email not available
Practice Locations
901 PATIENTS FIRST DRIVE SUITE 3300
Washington, MO 63090
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
Chronic conditions
Liver health
Specialized and cancer
- Short bowel syndrome
Wound care
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
- Blocked Bile Duct
Procedures & services
Advanced endoscopy
- EUS-guided biopsy
Biliary and pancreatic endoscopy
- Biliary sphincterotomy
- Endoscopic bile duct stone removal
Capsule and physiology testing
- Ambulatory reflux monitoring
- Capsule endoscopy
- Hydrogen and methane breath testing
- Anorectal manometry
- Esophageal manometry
Chronic illness
- Feeding tube care and troubleshooting
Clinical Nutrition
Diagnostic Testing
- 24-Hour Acid Reflux Test
- H. Pylori Breath Test
- SIBO Breath Test
- EUS-Guided Fine Needle Biopsy
Digestive
- Bowel Retraining Program
General surgery
Infection & Microbiology Tests
Liver procedures
- Paracentesis
- Esophageal variceal banding
- Liver elastography
Lower endoscopy
- Colon polyp removal
- Diagnostic colonoscopy
- Endoscopic control of gastrointestinal bleeding
- Flexible sigmoidoscopy
Nursing care
Nutrition & Digestion
Upper endoscopy
- Endoscopic mucosal resection
- Esophageal biopsy
- Esophageal dilation
- Stomach biopsy
- Endoscopic submucosal dissection
Most searched procedures
- Colonoscopy
- Endoscopy
- Gallbladder removal
- Hernia repair
- Liver biopsy
Treatments
- Stool Transplant
Procedures Most Often Billed to Medicare
306 services · 301 patients · 11 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 |
43 | More often than most peers in Gastroenterology |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
39 | More often than most peers in Gastroenterology |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
36 | More often than most peers in Gastroenterology |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
34 | More often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
25 | Less often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
15 | Less often than most peers in Gastroenterology |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
12 | Less often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
47 | As often as other peers in Gastroenterology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
22 | Less often than most peers in Gastroenterology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
21 | As often as other 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 7
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 — 26 related providers in 4 groups
Other gastroenterologists in Washington 3
Same specialty, same city.
Trained at Saint Louis University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2010 at Saint Louis University 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 is Nicholas W. Frederickson's specialty?
Nicholas W. Frederickson is a gastroenterologist in Washington, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where can I find Nicholas W. Frederickson?
Nicholas W. Frederickson is listed at 901 Patients First Drive Suite 3300, Washington, MO 63090. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Nicholas W. Frederickson?
The number on file is (636) 239-7344. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Nicholas W. Frederickson?
Nicholas W. Frederickson's National Provider Identifier is 1154640225. 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
What is Nicholas W. Frederickson's education?
Nicholas W. Frederickson attended Saint Louis University School of Medicine, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Nicholas W. Frederickson have?
Nicholas W. Frederickson has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
What is Nicholas W. Frederickson known for?
According to Medicare billing data, Nicholas W. Frederickson 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, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Nicholas W. Frederickson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Nicholas W. Frederickson. If this is you, claiming it is free.
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