Carl K. Atallah, DO
Gastroenterology Physician · Chicago, IL
Carl K. Atallah, DO is a gastroenterology physician with a practice address in Chicago, Illinois, and NPI 1922269190, issued on Jun 20, 2008. Check the license (Illinois 036127620, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Carl K. Atallah
- Credential
- DO
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036127620 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3000 N Halsted St Ste 623, Chicago, IL 60657
- Phone
- (773) 281-5818
- Enumerated
- Jun 20, 2008
- Record last updated
- Apr 8, 2025
- Fax
- (773) 281-6859
- Medicare enrollment
- Enrolled (PECOS I20120327000935); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 3000 N Halsted St Ste 623
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Manish Dhamija, M.D.Gastroenterology Physician1699977413
- Michael Flicker, M.D.Gastroenterology Physician1730375627
- Kristin Keating, PA-CPhysician Assistant1275816167
- Mona Lalehzari, MDGastroenterology Physician1952838526
- Chiyoko Rando, PA-CPhysician Assistant1073353728
Verify Carl K. Atallah 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 036127620Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% more Medicare Part D claims than the average gastroenterology physician in 2024
846 Medicare Part D claims for 395 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Pantoprazole Sodium204 claims
- Sod Sulf-Potass Sulf-Mag Sulf179 claims
- Famotidine80 claims
- Gavilyte-G45 claims
- Dicyclomine Hcl37 claims
- Sucralfate33 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: $1,661.74
70 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., 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
- Advanced GI LLCChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carl K. Atallah among 887 gastroenterology physician records in Illinois
Carl K. Atallah, DO 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 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 39% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2008 · 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
- Andrew Albert, MDChicago, IL 606571659413656
- Manish Dhamija, M.D.Chicago, IL 606571699977413
- Michael Flicker, M.D.Chicago, IL 606571730375627
- Keikhosrow Ghazanfari, MDChicago, IL 606571831188747
- Lawrence Gluskin, MDChicago, IL 606571235109711
- Frank Konicek, MDChicago, IL 606571619966447
- Krutika Lakhoo, MDChicago, IL 606571407199458
- William Markey, MDChicago, IL 606571033204706
Common questions
What is Carl K. Atallah, DO's NPI number?
Carl K. Atallah, DO's National Provider Identifier (NPI) is 1922269190, issued on Jun 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Carl K. Atallah, DO located?
The NPPES record lists a practice address at 3000 N Halsted St Ste 623, Chicago, IL, 60657. Phone: (773) 281-5818. Providers update this record themselves, so call before visiting.
How can I verify Carl K. Atallah, DO's license?
NPPES lists Illinois license number 036127620, 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 Carl K. Atallah, DO prescribe under Medicare Part D?
In 2024, Carl K. Atallah, DO had 846 Medicare Part D claims for 395 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.