DR. MATTHEW ERIC POSEN DO
NPI 1295485837
Internal Medicine in Oak Lawn, IL

Q: What is Matthew Posen's NPI number?

The NPI number for Matthew Posen is 1295485837. It was assigned to this individual provider in the NPPES registry on March 26, 2022.

Q: What is Matthew Posen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Posen was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 26, 2022PECOS EnrolledAccepts Medicare Assignment

4440 W 95TH ST, OAK LAWN, IL 60453(708) 684-4393(708) 684-2032 Get Directions Write a Review

NPPES record last updated: July 28, 2025. Verified against the NPPES registry weekly; last sync: September 06, 2026.

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About Dr. Matthew Eric Posen Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MATTHEW ERIC POSEN DO (NPI 1295485837) is an individual internal medicine provider in Oak Lawn, Illinois, licensed in Illinois (036172402) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, is affiliated with Advocate Christ Hospital & Medical Center, and maintains a secondary practice location in Oak Lawn.

NPPES Registry Identity

NPI1295485837

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. MATTHEW ERIC POSENCredential: DO

Location Address4440 W 95TH STOak Lawn, IL 60453-2600

Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900

Phone(708) 684-4393

Fax(708) 684-2032

Sole ProprietorNo

Medical School CMSChicago College Of OsteopathyGraduated 2022

Enumeration DateMarch 26, 2022

Last NPPES UpdateJuly 28, 2025

NPPES CertifiedJuly 28, 2025

✔ NPI 1295485837 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in IL · 036172402

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

4440 W 95TH ST, Oak Lawn, IL 60453

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Secondary Practice Location 1

Location 14220 W 95th St Ste 200Oak Lawn, IL 60453-3072 · Phone (708) 398-0287

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Matthew Eric Posen Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123539459

PECOS Enrollment IDI20250613003192

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Advocate Christ Hospital & Medical Center

Acute Care Hospitals · Oak Lawn, IL

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140208

Location4440 W 95th StreetOak Lawn, IL 60453 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60453 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$138.86 typical visit price

range $60.08 – $183.39

Typical copayment $34.71 (range $15.02 – $45.84)

Most-billed visit code 99204

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARK ADRIAN FAASSE MD

Urology