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

Dr. Alyssa Ceilesh, DO

Individual provider Medical Oncology Physician · NPI 1407273774

Dr. Alyssa Ceilesh, DO practises Medical Oncology in Rockford, Illinois. Graduated from Midwestern University, Chicago College of Osteopathic Med in 2014, 12 years ago. Practices with Osf Multi-Specialty Group, a 2,128-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
12
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
IL
In the registry since
2014
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

5666 E State St
Rockford, IL 61108-2425
Phone: (815) 977-4123
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 036143661 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036143661 (IL)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence 036143661 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125.064587 (IL)

Record details

NPI number1407273774
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 25, 2014
Last updated in NPPESJuly 10, 2026
Certification dateJuly 10, 2026

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 2014 (12 years in practice)
Group practice Osf Multi-Specialty Group — 2128 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients287
Services billed 1,044 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

  • Saint Anthony Medical Center Hospital · Rockford, IL
  • Osf Saint Paul Medical Center Hospital · Mendota, IL
  • Uw Health Hospital · Rockford, IL

Colleagues at Osf Multi-Specialty Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2128 clinicians in the practice; 12 are shown here.

Other providers in Rockford