Christopher D. Berg, DO
Emergency Medicine Physician · Joliet, IL
Christopher D. 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 D. 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
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
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, FNPFamily Nurse Practitioner1114417391
- Valbona Behaj, M.D.Internal Medicine Physician1407011588
- Julie Bialas, FNP-CFamily Nurse Practitioner1568853570
Verify Christopher D. 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
10% 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 226 among the 54,106 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.
Christopher D. Berg among 3,291 emergency medicine physician records in Illinois
Christopher D. Berg, DO is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2007 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 emergency medicine physician records list a practice address in Joliet
They are 28 of the 2,047 NPPES records with a practice address in Joliet, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Joliet → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Janine Andriusis, D.O.Joliet, IL 604351356581037
- Ciro Iandoli, MDJoliet, IL 604351477614642
- Daniel Magdziarz, DOJoliet, IL 604351689674079
- Matthew Nitsche, MDJoliet, IL 604351043210446
- Claude Sadovsky, MDJoliet, IL 604351356341713
- Surander Singhal, MDJoliet, IL 604351609876069
- Jennifer Smith-Garcia, MDJoliet, IL 604351962643452
- Albert Song, MDJoliet, IL 604351083614762
Common questions
What is Christopher D. Berg, DO's NPI number?
Christopher D. 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 D. 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 D. 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 D. Berg, DO prescribe under Medicare Part D?
In 2024, Christopher D. Berg, DO had 203 Medicare Part D claims for 135 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.