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

Individual provider Internal Medicine Physician · NPI 1699782151

Mark Riederman, MD is an Internal Medicine in Libertyville, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1980, 46 years ago. Practices with Lake Forest Internal Medicine Ltd, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
46
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
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

1800 Hollister Dr Ste 211
Libertyville, IL 60048-5266
Phone: (847) 816-3084
Fax: (847) 816-0031
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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 036063570 (IL)

Record details

NPI number1699782151
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 1, 2006
Last updated in NPPESOctober 24, 2012
Mailing address1800 Hollister Dr, Suite 211, Libertyville, IL 60048-5266

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1980 (46 years in practice)
Group practice Lake Forest Internal Medicine Ltd — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Libertyville