David S. Atlas, M.D.
Gastroenterology Physician · Chicago, IL
David S. Atlas, M.D. is a gastroenterology physician with a practice address in Chicago, Illinois, and NPI 1952375636, issued on Feb 17, 2006. Check the license (Illinois 036120786, 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. Atlas
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036120786 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2315 E 93RD St Ste 440, Chicago, IL 60617
- Phone
- (708) 333-0001
- Enumerated
- Feb 17, 2006
- Record last updated
- Jul 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20110603000147); accepts Medicare assignment
- Medical or professional school
- R Franklin University Of Med & Sci/Chicago Medical School, 2004
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 2315 E 93RD St Ste 440
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kristin Meinke, AU.D.Audiologist1881284370
- Sarah Morgan, AUDAudiologist1689131740
- Aimee Schad, MDHematology & Oncology Physician1053802975
- Robin SzajnaNurse Practitioner1275091548
Verify David S. Atlas 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 036120786Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average gastroenterology physician in 2024
347 Medicare Part D claims for 217 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Peg 3350-Electrolyte158 claims
- Omeprazole71 claims
- Doxycycline Monohydrate35 claims
- Metronidazole34 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.
Bills Medicare through one group practice
- Ucm Medical Group Sub LLCFlossmoor, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David S. Atlas among 887 gastroenterology physician records in Illinois
David S. Atlas, 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
- Graduated2004 · 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 Chicago → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Claudia Johnson, M.D.Chicago, IL 606171992805782
- David BarchChicago, IL 606181447765888
- Yui Chan, M.D.Chicago, IL 606161679625289
- Calvin Hall, MDChicago, IL 606161992781702
- Sharif Murphy, M.D.Chicago, IL 606161588096556
- Thomas Cullins, M.D.Chicago, IL 606191295765485
- Perry Kamel, MDChicago, IL 606141174522866
- Majd Aboona, MDChicago, IL 606121386347789
Common questions
What is David S. Atlas, M.D.'s NPI number?
David S. Atlas, M.D.'s National Provider Identifier (NPI) is 1952375636, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David S. Atlas, M.D. located?
The NPPES record lists a practice address at 2315 E 93RD St Ste 440, Chicago, IL, 60617. Phone: (708) 333-0001. Providers update this record themselves, so call before visiting.
How can I verify David S. Atlas, M.D.'s license?
NPPES lists Illinois license number 036120786, 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. Atlas, M.D. prescribe under Medicare Part D?
In 2024, David S. Atlas, M.D. had 347 Medicare Part D claims for 217 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.