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

Claus J Fimmel, MD

Individual provider Gastroenterology Physician · NPI 1568417780

Claus J Fimmel, MD is a Gastroenterology in Northbrook, Illinois. Qualified in 1981, 45 years ago. Practices with St Vincent Hospital-Hospital Sisters-Third Order of St Francis, a 594-clinician group and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
45
Licensed in
IL, WI
In the registry since
2006
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

40 Skokie Blvd Ste 110
Northbrook, IL 60062-1614
Phone: (224) 407-4400
Fax: (224) 407-2255
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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 036115700 (IL)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 13614-320 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036115700 (IL)

Record details

NPI number1568417780
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 24, 2006
Last updated in NPPESNovember 19, 2025
Certification dateNovember 19, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Group practice St Vincent Hospital-Hospital Sisters-Third Order Of St Francis — 594 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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