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

Mark A. Speyer, MD

Individual provider Hospitalist Physician · NPI 1649464488

Mark A. Speyer, MD is registered under Hospice/Palliative Care in Winfield, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2004, 22 years ago. Practices with Central Dupage Physician Group, a 1,094-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
22
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2007
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

25 N Winfield Rd
Winfield, IL 60190-1295
Phone: (630) 933-4847
Fax: (630) 933-3826
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 302 Randall Rd, Geneva, IL 60134-4220 — (630) 938-2200
  • 2160 S 1st Ave, Maywood, IL 60153-3328 — (708) 216-9122

Specialties & licences

Hospice and Palliative Medicine (Internal Medicine) Physician (primary) Taxonomy 207RH0002X · Licence 036119500 (IL)
Hospitalist Physician Taxonomy 208M00000X · Licence 036119500 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036119500 (IL)

Record details

NPI number1649464488
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 5, 2007
Last updated in NPPESJanuary 24, 2024
Certification dateJanuary 24, 2024

Medicare enrollment

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

Medicare specialtyHOSPICE/PALLIATIVE CARE
Also practisesHOSPITALIST, INTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2004 (22 years in practice)
Group practice Central Dupage Physician Group — 1094 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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 patients146
Services billed 354 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

  • Northwestern Medicine Central Dupage Hospital Hospital · Winfield, IL

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