DAVID ASHER LEIMAN MD
NPI 1558596403
Student in an Organized Health Care Education/Training Program in Durham, NC
About David Asher Leiman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID ASHER LEIMAN MD (NPI 1558596403) is an individual student in an organized health care education/training program in Durham, North Carolina, licensed in Pennsylvania (MT195507) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS, is affiliated with Duke University Hospital, and is a graduate of Vanderbilt University School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
David Asher Leiman Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show David Leiman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Durham, NC 27704
- Reassigned Medicare billing, North Carolina enrollment
- 3,671 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 14
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Duke University Hospital
Acute Care Hospitals · Durham, NCDuke Regional Hospital
Acute Care Hospitals · Durham, NCFrequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is David Leiman's NPI number?
The NPI number for David Leiman is 1558596403. It was assigned to this individual provider in the NPPES registry on May 21, 2009.
Where is David Leiman located?
David Leiman practices at Duke South, Gastroenterology Box 3913 Room 0348, Basement, Orange Zone, Durham, NC 27710. The listed phone number is (301) 758-0727.
What is David Leiman's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is David Leiman enrolled in Medicare?
Yes. David Leiman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for David Leiman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Leiman reassigns Medicare benefits to Duke Health Integrated Practice, Inc (Durham, NC). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Leiman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Leiman accept?
Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee, Blue Cross and Blue Shield of NC and Cigna Healthcare list David Leiman as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is David Leiman affiliated with any hospitals?
According to CMS data, David Leiman is affiliated with Duke University Hospital and Duke Regional Hospital.
When was this NPI record last updated?
The NPPES record for David Leiman was last updated on July 6, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# David Asher Leiman, MD · NPI 1558596403
Student in an Organized Health Care Education/Training Program provider in Durham, North Carolina. Individual provider, active in the CMS NPPES registry since May 21, 2009.
## Identity
- **NPI:** 1558596403 (Entity type: Individual)
- **Enumerated:** May 21, 2009
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **State license:** MT195507 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** DUKE SOUTH, GASTROENTEROLOGY BOX 3913, ROOM 0348, BASEMENT, ORANGE ZONE, Durham, NC 27710
- **Phone:** (301) 758-0727
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Duke Health Integrated Practice, Inc (NPI 1518725936, Durham, NC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Vanderbilt University School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** July 6, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1558596403) · Data from the CMS NPPES public registry.