Karen Dufour, M.D.
NPI 1609859842 · Gastroenterology Physician · Orange, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Dufour, M.D. is a Gastroenterology Physician provider in Orange, CT (NPI 1609859842).
Provider details
- NPI number
- 1609859842
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 028102 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
895 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 315 | $139 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 179 | $143 |
| Automated Urinalysis Test81003 | 128 | $2 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 103 | $16 |
| Administration of Influenza Virus VaccineG0008 | 46 | $34 |
| Urinalysis, Manual Test81002 | 37 | $3 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 91 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 539 | 176 |
| Levothyroxine Sodium | 428 | 141 |
| Amlodipine Besylate | 264 | 87 |
| Rosuvastatin Calcium | 260 | 96 |
| Pantoprazole Sodium | 259 | 91 |
| Losartan Potassium | 225 | 72 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-22
- Last updated
- 2013-10-10
Frequently asked questions
- What is Karen Dufour's NPI number?
- Karen Dufour's National Provider Identifier (NPI) is 1609859842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Dufour's specialty?
- Karen Dufour is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Dufour located?
- Karen Dufour's practice location on file with NPPES is 325 Boston Post Rd, Orange, CT 06477-3504.
- What is Karen Dufour's phone number?
- The practice phone number listed in the NPPES registry for Karen Dufour is (203) 795-0568.
- Does Karen Dufour accept Medicare?
- Karen Dufour is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Dufour's NPI active?
- Yes — Karen Dufour's NPI (1609859842) is active in the NPPES registry as of the last update on 2013-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.