Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Christopher Grant Chapman, MD

Individual provider Gastroenterology Physician · NPI 1235378043

Dr. Christopher Grant Chapman, MD is a Gastroenterology in Chicago, Illinois. Graduated from Johns Hopkins University School of Medicine in 2008, 18 years ago. Practices with Rush University Medical Group, a 1,499-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Ohio.

Years since qualifying
18
Trained at
Johns Hopkins University School of Medicine
Licensed in
IL, OH
In the registry since
2009
Specialties on file
2
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

1520 W Harrison St
Chicago, IL 60607-3106
Phone: (312) 942-8651
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036128100 (IL)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 35.146804 (OH)

Record details

NPI number1235378043
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 18, 2009
Last updated in NPPESJune 2, 2026
Certification dateJune 2, 2026
Mailing address1725 W Harrison St Ste 206, Chicago, IL 60612-3988

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Rush University Medical Group — 1499 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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