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

Dr. Matthew Eric Posen, DO

Individual provider Internal Medicine Physician · NPI 1295485837

Dr. Matthew Eric Posen, DO is an Internal Medicine in Oak Lawn, Illinois. Graduated from Chicago College of Osteopathy in 2022, 4 years ago. Practices with Advocate Health and Hospitals Corporation, a 3,079-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
4
Trained at
Chicago College of Osteopathy
Licensed in
IL
In the registry since
2022
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

4440 W 95th St
Oak Lawn, IL 60453-2600
Phone: (708) 684-4393
Fax: (708) 684-2032
Show map & directions

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

Additional practice locations (1)

  • 4220 W 95th St Ste 200, Oak Lawn, IL 60453-3072 — (708) 398-0287

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036172402 (IL)

Record details

NPI number1295485837
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 26, 2022
Last updated in NPPESJuly 28, 2025
Certification dateJuly 28, 2025
Mailing address29373 Network Pl, Chicago, IL 60673-1293

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolCHICAGO COLLEGE OF OSTEOPATHY
Graduated 2022 (4 years in practice)
Group practice Advocate Health And Hospitals Corporation — 3079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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