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

Dr. Jeffrey Mark Jacobs, MD

Individual provider Gastroenterology Physician · NPI 1174524136

Dr. Jeffrey Mark Jacobs, MD is a Gastroenterology in Herrin, Illinois. Graduated from Jefferson Medical College of Thomas Jefferson University in 1985, 41 years ago. Practices with Illinois Gastroenterology Group LLC, a 116-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
41
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
IL
In the registry since
2005
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

201 S 14th St
Herrin, IL 62948-3631
Phone: (618) 942-2171
Fax: (618) 988-6166
Show map & directions

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

Additional practice locations (1)

  • 2501 Compass Rd, Glenview, IL 60026-8000 — (847) 677-1170

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036092245 (IL)

Record details

NPI number1174524136
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 2, 2005
Last updated in NPPESJuly 21, 2022
Mailing address2501 Compass Rd, Suite 130, Glenview, IL 60026-8000

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1985 (41 years in practice)
Group practice Illinois Gastroenterology Group Llc — 116 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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