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

Individual provider Internal Medicine Physician · NPI 1679505051

Robert Jaroslaw Chalupczak, MD is an Internal Medicine in Oak Lawn, Illinois. Qualified in 1991, 35 years ago. Practices with Lawn Medical Center, SC, an 11-clinician group, accepts Medicare assignment and offers telehealth. 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

4301 W 95th St
Oak Lawn, IL 60453-2670
Phone: (708) 425-5500
Fax: (798) 425-0771
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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 036098369 (IL)

Record details

NPI number1679505051
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 7, 2006
Last updated in NPPESDecember 28, 2021
Certification dateDecember 28, 2021

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 Lawn Medical Center, S.C. — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Oak Lawn