Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dagan Hammar, MD

Individual provider Hospitalist Physician · NPI 1194287151

Dagan Hammar, MD is a Hospitalist in Winfield, Illinois. Graduated from Western Michigan Un Homer Stryker School of Med in 2019, 7 years ago. Practices with Central Dupage Physician Group, a 1,094-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Colorado and Illinois.

Years since qualifying
7
Trained at
Western Michigan Un Homer Stryker School of Med
Licensed in
CO, IL
In the registry since
2019
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

25 N Winfield Rd
Winfield, IL 60190-1379
Phone: (630) 933-4700
Fax: (630) 933-4427
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 12605 E 16th Ave, Aurora, CO 80045-2545 — (720) 848-0000

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 036174384 (IL)
Hospitalist Physician Taxonomy 208M00000X · Licence 068209 (CO)

Record details

NPI number1194287151
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 1, 2019
Last updated in NPPESSeptember 24, 2026
Certification dateSeptember 24, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Medical schoolWESTERN MICHIGAN UN HOMER STRYKER SCHOOL OF MED
Graduated 2019 (7 years in practice)
Group practice Central Dupage Physician Group — 1094 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients148
Services billed 432 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Central Dupage Physician Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1094 clinicians in the practice; 12 are shown here.

Other providers in Winfield