Dr. Matthew Eric Posen, DO
- Part D claims, 2024
- 446
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 4440 W 95th Street, Oak Lawn, IL 60453
- Practice phone
- Call (708) 684-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Posen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Matthew Eric Posen is an internist in Oak Lawn, Illinois
Dr. Posen practices at Advocate Christ Medical Center in Oak Lawn, Illinois, part of Advocate Health.
Dr. Posen's NPI, 1295485837, was assigned on March 26, 2022. Dr. Posen graduated from Chicago College of Osteopathy in 2022. Dr. Posen holds Illinois license 036172402.
- NPI
- 1295485837NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123539459
- NPI enumeration date
- March 26, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (708) 684-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew Eric Posen practices at Advocate Christ Medical Center in Oak Lawn, Illinois
Dr. Posen's primary practice is Advocate Christ Medical Center, at 4440 W 95th Street, Oak Lawn, IL 60453 in Cook County. The practice phone is (708) 684-8000.
- Advocate Christ Medical Center4440 W 95th Street, Oak Lawn, IL 60453 · Cook CountyPhone(708) 684-8000
Source: Dmand AI Affiliation Data
Dr. Matthew Eric Posen is affiliated with 2 sites of care and 2 medical groups
Dr. Posen's primary practice is Advocate Christ Medical Center in Oak Lawn, Illinois, part of Advocate Health. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Dr. Posen to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Matthew Eric Posen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Posen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Christ Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew Eric Posen is one of 5,652 internists in Illinois
Internal medicine is Dr. Posen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Posen is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Posen
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Matthew Eric Posen's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Posen's median patient age at 72, with 57% women.
Dr. Posen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. Matthew Eric Posen wrote 446 Medicare Part D claims in 2024
In 2024, Dr. Posen wrote 446 Medicare Part D claims for 99 patients. 87% of them were for generic drugs. CMS names the drug for 168 of them, across 8 drugs with 11 or more claims each, at $19,338 in total drug cost.
Dr. Posen's Part D claims by kind of drug, 2024
- Generic388 claims87%
- Brand-name46 claims10%
- Other12 claims3%
Dr. Posen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Matthew Eric Posen takes part in Medicare
Dr. Posen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Matthew Eric Posen graduated from Chicago College of Osteopathy
Dr. Posen graduated from Chicago College of Osteopathy in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew Eric Posen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Matthew Eric Posen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Matthew Eric Posen's NPI number?
Dr. Matthew Eric Posen's NPI number is 1295485837. It was assigned on March 26, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew Eric Posen?
Dr. Matthew Eric Posen is an internist in Oak Lawn, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Matthew Eric Posen practice?
Dr. Posen practices at 4440 W 95th Street, Oak Lawn, IL 60453. Dr. Posen's primary practice is Advocate Christ Medical Center in Oak Lawn, Illinois, part of Advocate Health. Dmand AI also links Dr. Posen to 1 group practice or clinic and 1 medical group.
What is Dr. Matthew Eric Posen's office phone number?
The practice phone on file for Dr. Posen is (708) 684-8000.
What is Dr. Matthew Eric Posen's medical license number?
Dr. Posen holds Illinois license 036172402.
Which hospitals is Dr. Matthew Eric Posen affiliated with?
Dr. Posen practices at Advocate Christ Medical Center in Oak Lawn, Illinois.
What medical group is Dr. Matthew Eric Posen part of?
Dr. Posen is linked to Dreyer Medical Clinic (Advocate Medical Group). Dmand AI links Dr. Posen to 1 more medical group.
Does Dr. Matthew Eric Posen accept Medicare?
Yes. CMS lists Dr. Posen as accepting Medicare assignment.
Where did Dr. Matthew Eric Posen go to medical school?
Dr. Posen graduated from Chicago College of Osteopathy in 2022.
What drugs does Dr. Matthew Eric Posen prescribe most?
In 2024 Medicare Part D data, Dr. Posen's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Furosemide.
How long has Dr. Matthew Eric Posen been practicing?
Dr. Posen graduated from medical school in 2022, 4 years ago.
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