DAVID S LOTSOFF M.D.
NPI 1205807328
Internal Medicine - Gastroenterology in Edwardsville, IL
About David S Lotsoff M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID S LOTSOFF M.D. (NPI 1205807328) is an individual gastroenterology provider in Edwardsville, Illinois, licensed in Illinois (036108442) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Alton Memorial Hospital, and maintains a secondary practice location in Lake Saint Louis.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 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 S Lotsoff 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 Reassignments
2Medicare enrollment records show David Lotsoff reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 435 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Illinois enrollment
- 507 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 10
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Alton Memorial Hospital
Acute Care Hospitals · Alton, ILMemorial Hospital
Acute Care Hospitals · Belleville, ILSt Lukes Hospital
Acute Care Hospitals · Chesterfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62025 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 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EDWARDSVILLE, IL 62025
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 David Lotsoff's NPI number?
The NPI number for David Lotsoff is 1205807328. It was assigned to this individual provider in the NPPES registry on January 27, 2006.
Where is David Lotsoff located?
David Lotsoff practices at 2122 Troy Rd Ste 130, Edwardsville, IL 62025. The listed phone number is (618) 800-4595.
What is David Lotsoff's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is David Lotsoff enrolled in Medicare?
Yes. David Lotsoff 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 organizations bill Medicare for David Lotsoff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Lotsoff reassigns Medicare benefits to 2 organizations: Mercy Hospitals East Communities (Saint Louis, MO) and Fairview Heights Medical Group, Sc (Saint Louis, MO). Each 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 Lotsoff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Lotsoff accept?
Health plans from Anthem Blue Cross and Blue Shield, Oscar Insurance Company and UnitedHealthcare list David Lotsoff 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 Lotsoff affiliated with any hospitals?
According to CMS data, David Lotsoff is affiliated with Alton Memorial Hospital, Memorial Hospital and St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for David Lotsoff was last updated on September 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.