Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. John Alan Martini, MD

Individual provider Emergency Medicine Physician · NPI 1508076522

Dr. John Alan Martini, MD practises Emergency Medicine in Chicago, Illinois. Graduated from Washington University School of Medicine in 2002, 24 years ago. Practices with Cepamerica Illinois LLP, a 493-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
24
Trained at
Washington University School of Medicine
Licensed in
IL
In the registry since
2007
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

5645 W Addison St Our Lady Of The Resurrection Medical Ctr
Chicago, IL 60634-4403 Not confirmed with CMS for 14 years — call before visiting
Phone: (773) 794-7601
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036117978 (IL)

Record details

NPI number1508076522
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 22, 2007
Last updated in NPPESAugust 16, 2012

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Cepamerica Illinois Llp — 493 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 patients340
Services billed 543 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Colleagues at Cepamerica Illinois LLP

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 493 clinicians in the practice; 12 are shown here.

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