Christopher Berg, DO
Emergency Medicine Physician · Joliet, IL
Christopher Berg, DO is an emergency medicine physician with a practice address in Joliet, Illinois, and NPI 1003816323, issued on Jul 28, 2005. Check the license (Illinois 036086664, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Christopher Berg
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036086664 IL
Self-reported in NPPES; status is on the state search - Practice location
- 333 Madison St, Joliet, IL 60435
- Phone
- (815) 725-7133
- Enumerated
- Jul 28, 2005
- Entity
- Type 1 · individual
Also registered at 333 Madison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Midhun Ajikumar, PA-CPhysician Assistant1437991080
- Janine Andriusis, D.O.Emergency Medicine Physician1356581037
- Kellie BaileyRegistered Dietitian1447699707
- Tamara Baird, FNPNurse Practitioner1114417391
- Valbona Behaj, M.D.Hospitalist Physician1407011588
- Julie Bialas, FNP-CFamily Nurse Practitioner1568853570
Verify Christopher Berg 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 036086664Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
43% fewer Medicare Part D claims than the average emergency medicine physician in 2024
203 Medicare Part D claims for 135 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Ondansetron Odt23 claims
- Acetaminophen-Codeine20 claims
- Amoxicillin-Clavulanate Potass16 claims
- Cephalexin16 claims
- Prednisone15 claims
- Pantoprazole Sodium14 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.
30 emergency medicine physician records list a Joliet practice address
They are 30 of the 2,047 NPPES records with a Joliet practice address, and 3,096 emergency medicine physician records in Illinois.
All 30 in Joliet → All 3,096 in Illinois → Every provider in Joliet →
Other emergency medicine physician records in Illinois
- Osama Aaflaq, M.D.Carbondale, IL1083663520
- Suresh Abad, M.D.Vernon Hills, IL1639100126
- Albert Abalos, M.D.Elmhurst, IL1881983484
- Habib Abbasi, M.D.Joliet, IL1902832835
- Andrew Abbeg, D.O.Greenville, IL1548490311
- Ryan Abbott, DOChicago, IL1477243517
- Zakaria Abdulnabi, M.D.Urbana, IL1790135499
- Logan Abel, MDChicago, IL1447900592
- Claire Abramoff, MDChicago, IL1316380009
- Rachel Abrams, M.D.Chicago, IL1659786317
Common questions
What is Christopher Berg, DO's NPI number?
Christopher Berg, DO's National Provider Identifier (NPI) is 1003816323, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Berg, DO located?
The NPPES record lists a practice address at 333 Madison St, Joliet, IL, 60435. Phone: (815) 725-7133. Providers update this record themselves, so call before visiting.
How can I verify Christopher Berg, DO's license?
NPPES lists Illinois license number 036086664, 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 Christopher Berg, DO prescribe under Medicare Part D?
In 2024, Christopher Berg, DO had 203 Medicare Part D claims for 135 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.