Samuel Dunn, MD
NPI 1689038416 · Gastroenterology Physician · North Little Rock, AR
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel Dunn, MD is a Gastroenterology Physician provider in North Little Rock, AR (NPI 1689038416).
Provider details
- NPI number
- 1689038416
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- E12110 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,198 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 631 | $30 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 240 | $59 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 185 | $66 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 165 | $220 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 148 | $81 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 248 | 74 |
| Omeprazole | 227 | 80 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 149 | 138 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 141 | 134 |
| Colestipol Hcl | 78 | 32 |
| Linaclotidebrand: Linzess | 57 | 22 |
| Sucralfate | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,178 across 73 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-07
- Last updated
- 2023-07-18
- Certified
- 2023-07-18
Frequently asked questions
- What is Samuel Dunn's NPI number?
- Samuel Dunn's National Provider Identifier (NPI) is 1689038416, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Dunn's specialty?
- Samuel Dunn is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Samuel Dunn located?
- Samuel Dunn's practice location on file with NPPES is 3401 Springhill Dr Ste 400, North Little Rock, AR 72117-2928.
- What is Samuel Dunn's phone number?
- The practice phone number listed in the NPPES registry for Samuel Dunn is (501) 945-3343.
- Does Samuel Dunn accept Medicare?
- Samuel Dunn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samuel Dunn's NPI active?
- Yes — Samuel Dunn's NPI (1689038416) is active in the NPPES registry as of the last update on 2023-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.