ROBERT TOWNER LAPP M.D.
NPI 1588829436
Internal Medicine - Gastroenterology in Sioux Falls, SD
About Robert Towner Lapp M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT TOWNER LAPP M.D. (NPI 1588829436) is an individual gastroenterology provider in Sioux Falls, South Dakota, licensed in Michigan (4301105662) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Sioux Center Health, and maintains a secondary practice location in Sioux Falls.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
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
Robert Towner Lapp M.d. 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 Robert Lapp reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Sioux Falls, SD 57108
- Reassigned Medicare billing, South Dakota enrollment
- 1,277 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 17
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sioux Center Health
Critical Access Hospitals · Sioux Center, IAPipestone County Medical Center
Critical Access Hospitals · Pipestone, MNAvera Sacred Heart Hospital
Acute Care Hospitals · Yankton, SDAvera St Lukes
Acute Care Hospitals · Aberdeen, SDAvera Mckennan Hospital & University Health Center
Acute Care Hospitals · Sioux Falls, SDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 57108 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SIOUX FALLS, SD 57108
SIOUX FALLS, SD 57108
Frequently 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 Robert Lapp's NPI number?
The NPI number for Robert Lapp is 1588829436. It was assigned to this individual provider in the NPPES registry on July 21, 2008.
Where is Robert Lapp located?
Robert Lapp practices at 6100 S Louise Ave Ste 3100, Sioux Falls, SD 57108. The listed phone number is (605) 504-1400.
What is Robert Lapp's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Robert Lapp enrolled in Medicare?
Yes. Robert Lapp 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 Robert Lapp's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Lapp reassigns Medicare benefits to Avera Mckennan (Sioux Falls, SD). 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 Robert Lapp's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Lapp accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Avera Health Plans and Wellmark Health Plan of Iowa, Inc. and 1 other insurer list Robert Lapp 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 Robert Lapp affiliated with any hospitals?
According to CMS data, Robert Lapp is affiliated with Sioux Center Health, Pipestone County Medical Center, Avera Sacred Heart Hospital, Avera St Lukes and Avera Mckennan Hospital & University Health Center.
When was this NPI record last updated?
The NPPES record for Robert Lapp was last updated on October 31, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.