David Leiman, MD
NPI 1558596403 · Student in an Organized Health Care Education/Training Program · Durham, NC
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Leiman, MD is a Student in an Organized Health Care Education/Training Program provider in Durham, NC (NPI 1558596403).
Provider details
- NPI number
- 1558596403
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MT195507 (PA)
Specialties & taxonomies
- Student in an Organized Health Care Education/Training ProgramPrimary390200000XLicense MT195507 (PA)
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 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
403 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) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 71 | $98 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 48 | $132 |
| Study of Esophagus to Assess Movement91010 | 37 | $56 |
| Monitoring and Recording of Esophageal Function Through a Capsule Attached to the Esophagus Wall91035 | 33 | $69 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 30 | $169 |
| Monitoring and Recording of Esophageal Function Through Nasal Tube With Electrode91037 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 138 | 65 |
| Pantoprazole Sodium | 52 | 18 |
| Famotidine | 29 | — |
| Esomeprazole Magnesium | 28 | 11 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 28 | 27 |
| Sucralfate | 22 | 11 |
| Oxycodone Hcl | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,911 across 5 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
- 2009-05-21
- Last updated
- 2015-07-06
Frequently asked questions
- What is David Leiman's NPI number?
- David Leiman's National Provider Identifier (NPI) is 1558596403, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Leiman's specialty?
- David Leiman is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is David Leiman located?
- David Leiman's practice location on file with NPPES is Duke South, Gastroenterology Box 3913, Durham, NC 27710.
- What is David Leiman's phone number?
- The practice phone number listed in the NPPES registry for David Leiman is (301) 758-0727.
- Does David Leiman accept Medicare?
- David Leiman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Leiman's NPI active?
- Yes — David Leiman's NPI (1558596403) is active in the NPPES registry as of the last update on 2015-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.