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

Individual provider Internal Medicine Physician · NPI 1255420451

Dr. James F Koop, MD is an Internal Medicine in Melrose Park, Illinois. Qualified in 1991, 35 years ago. Practices with Elio M Vento MD and Associates SC, an 8-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
35
Licensed in
IL
In the registry since
2006
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

675 W North Ave Ste 409
Melrose Park, IL 60160-1634
Phone: (708) 450-5070
Fax: (708) 450-5078
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036086979 (IL)

Record details

NPI number1255420451
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 12, 2006
Last updated in NPPESMarch 30, 2011

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Elio M Vento Md And Associates Sc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Melrose Park