Physician Profile
Karen S. Dufour, M.D.
Unclaimed ProfileAbout Dr. Dufour
Based in Orange, CT, Karen S. Dufour, M.D. is listed in the NPI registry under gastroenterology. Karen graduated from Warren Alpert Medical School of Brown University in 1984. According to Medicare claims data, Karen cared for 864 Medicare patients across 954 services. 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, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, and automated urinalysis test.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (203) 795-0568
- Email not available
Practice Locations
325 BOSTON POST RD
Orange, CT 06477
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
954 services · 864 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
12 | Less often than most peers in Gastroenterology |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
103 | More often than most peers in Gastroenterology |
| Influenza vaccine, inactivated | Treatment | 90653 |
40 | More often than most peers in Gastroenterology |
| Sarscov2 vac 50 mcg/0.5ml im | Treatment | 91322 |
19 | Too few peers to compare |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
19 | Too few peers to compare |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
315 | More than most peers in Gastroenterology |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
179 | More than most peers in Gastroenterology |
| Automated urinalysis test | Lab test | 81003 |
128 | Too few peers to compare |
| Administration of influenza virus vaccine | Billing code | G0008 |
46 | More often than most peers in Gastroenterology |
| Urinalysis, manual test | Lab test | 81002 |
37 | Too few peers to compare |
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.
Related specialists at this location 1
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.
Trained at Warren Alpert Medical School of Brown University 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1984 at Warren Alpert Medical School of Brown University 8
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 CT who bill this service to Medicare most often.
Common questions
What does Karen S. Dufour specialize in?
Karen S. Dufour is a gastroenterologist in Orange, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Karen S. Dufour located?
Karen S. Dufour is listed at 325 Boston Post Rd, Orange, CT 06477. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Karen S. Dufour's phone number?
The number on file is (203) 795-0568. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Karen S. Dufour's NPI number?
Karen S. Dufour's National Provider Identifier is 1609859842. 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 Karen S. Dufour train?
Karen S. Dufour attended Warren Alpert Medical School of Brown University, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Karen S. Dufour been practicing?
Karen S. Dufour has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What does Karen S. Dufour do most often?
According to Medicare billing data, Karen S. Dufour performs procedures including biopsy of large bowel using a flexible endoscope; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and influenza vaccine, inactivated, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Karen S. Dufour confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Karen S. Dufour. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.