David S. Lotsoff, M.D.
Gastroenterology Physician · Edwardsville, IL
David S. Lotsoff, M.D. is a gastroenterology physician with a practice address in Edwardsville, Illinois, and NPI 1205807328, issued on Jan 27, 2006. Check the license (Illinois 036108442, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- David S. Lotsoff
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 036108442 IL
112982 MO
Self-reported in NPPES; status is on the state search - Practice location
- 2122 Troy RD Ste 130, Edwardsville, IL 62025
- Phone
- (618) 800-4595
- Enumerated
- Jan 27, 2006
- Record last updated
- Sep 16, 2025
- Medicaid ID
- 208433805 MO
- Medicare enrollment
- Enrolled (PECOS I20250925003605); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 2122 Troy RD Ste 130
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sisay Michael Abraham, MDFamily Medicine Physician1184088312
- Catherine Ash, M.D.Internal Medicine Physician1861874059
- Megan Cox, DNP, FNPFamily Nurse Practitioner1326504135
- Marion Dessalines, PA-CPhysician Assistant1548082647
- Mei Huang, M.D.Gastroenterology Physician1417972597
- Ranita Keller, FNPFamily Nurse Practitioner1083096895
Verify David S. Lotsoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036108442Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average gastroenterology physician in 2024
788 Medicare Part D claims for 446 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Gavilyte-G274 claims
- Omeprazole127 claims
- Amitriptyline Hcl75 claims
- Peg-3350 And Electrolytes66 claims
- Dicyclomine Hcl49 claims
- Pantoprazole Sodium31 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $210.30
10 payments; by number, the most common kind was food and beverage; the largest payer was Aimmune Therapeutics, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Fairview Heights Medical Group SCAlton, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David S. Lotsoff among 887 gastroenterology physician records in Illinois
David S. Lotsoff, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1997 · median 2003 among the 643 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Edwardsville → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Mei Huang, M.D.Edwardsville, IL 620251417972597
- Karen Sein Ohn, MDGranite City, IL 620401518119536
- Mark Allendorph, M.D.Alton, IL 620021922094002
- Ahmad Karadaghy, M.D.Alton, IL 620021619963063
- Khalid Naseer, MDAlton, IL 620021851341366
- David Riedel, MDAlton, IL 620021073505004
- Yixi Tu, MDAlton, IL 620021861854929
- Mark Fedder, MDMaryville, IL 620621922009943
Common questions
What is David S. Lotsoff, M.D.'s NPI number?
David S. Lotsoff, M.D.'s National Provider Identifier (NPI) is 1205807328, issued on Jan 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David S. Lotsoff, M.D. located?
The NPPES record lists a practice address at 2122 Troy RD Ste 130, Edwardsville, IL, 62025. Phone: (618) 800-4595. Providers update this record themselves, so call before visiting.
How can I verify David S. Lotsoff, M.D.'s license?
NPPES lists Illinois license number 036108442, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David S. Lotsoff, M.D. prescribe under Medicare Part D?
In 2024, David S. Lotsoff, M.D. had 788 Medicare Part D claims for 446 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.