Dr. Stuart Oserman, MD
- Medicare services, 2024
- 1,152
- Medicare patients, 2024
- 192
- Part D claims, 2024
- 3,564
- Industry payments
- $78
- Affiliated sites
- 1
- Practice address
- 1775 Ballard Rd, Park Ridge, IL 60068
- Practice phone
- Call (847) 349-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
A2Cl Services, LLC
Park Ridge, Illinois
Find Dr. Oserman'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. Stuart Oserman is an internist in Park Ridge, Illinois
Dr. Oserman practices at A2Cl Services, LLC in Park Ridge, Illinois.
Dr. Oserman's NPI, 1750326450, was assigned on June 17, 2006. Dr. Oserman graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1978. Dr. Oserman holds Illinois license 03659157.
- NPI
- 1750326450NPI Registry (opens in a new tab)
- NPI enumeration date
- June 17, 2006
- NPI status
- Active
- Practice phone
- (847) 349-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Stuart Oserman practices at A2Cl Services, LLC in Park Ridge, Illinois
Dr. Oserman's primary practice is A2Cl Services, LLC, at 1775 Ballard Rd, Park Ridge, IL 60068 in Cook County. The practice phone is (847) 349-7000.
- A2Cl Services, LLC1775 Ballard Rd, Park Ridge, IL 60068 · Cook CountyPhone(847) 349-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stuart Oserman is affiliated with 2 sites of care and 1 medical group
Dr. Oserman's primary practice is A2Cl Services, LLC in Park Ridge, Illinois. Dmand AI also links Dr. Oserman to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stuart Oserman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oserman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| A2Cl Services, LLC | 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. Stuart Oserman is one of 5,652 internists in Illinois
Internal medicine is Dr. Oserman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Oserman is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Oserman
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. Stuart Oserman billed Medicare for 1,152 services in 2024
CMS data shows 1,152 Medicare services from Dr. Oserman across 16 procedure codes in 2024, for 192 Medicare patients. Medicare paid $85,581 for them.
Dr. Oserman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4692024: 4925%
- Tests and treatments
- 2023: 1462024: 23460%
- Surgery
- 2023: 1652024: 21128%
- Other services
- 2023: 2632024: 19526%
- Lab and pathology
- 2023: 212024: 205%
Where Dr. Oserman's Medicare services took place, 2024
- In an office1,10996%
- In a facility434%
Dr. Oserman compared with the Illinois median for internists, 2024
- Dr. Oserman
- Illinois median
- Medicare services
- 1,152vs 5662.0 times
- Medicare patients
- 192vs 2088% below
- Part D claims
- 2,996vs 28410.5 times
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Oserman's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Oserman and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stuart Oserman treated 192 Medicare patients in 2024, average age 77
CMS counts 192 Medicare patients who saw Dr. Oserman in 2024. The largest group is 75 to 84, with 76 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.39, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Oserman's median patient age at 77, with 40% women.
Dr. Oserman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Oserman's Medicare patients by sex, 2024
- Women8846%
- Men10454%
Chronic conditions among Dr. Oserman's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis46%
- Chronic kidney disease24%
- Ischemic heart disease24%
- Atrial fibrillation22%
- Diabetes22%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oserman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women40%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stuart Oserman wrote 3,564 Medicare Part D claims in 2024
In 2024, Dr. Oserman wrote 3,564 Medicare Part D claims for 299 patients. 90% of them were for generic drugs. CMS names the drug for 2,996 of them, across 71 drugs with 11 or more claims each, at $144,602 in total drug cost. In 2023, CMS named 2,991 claims across 68 drugs.
Dr. Oserman's Part D claims by kind of drug, 2024
- Generic3,218 claims90%
- Brand-name333 claims9%
- Other13 claims0%
Dr. Oserman'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.
Drug classes CMS tracks in Dr. Oserman's Part D claims, 2024
- Opioids1%32 of 3,564 claims
- Antibiotics1%38 of 3,564 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,9912024: 2,996No change
Drugs named by CMS: 71 in 2024, 68 in 2023.
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
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Dr. Stuart Oserman received $78 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Oserman from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $78.
Companies that paid Dr. Oserman the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stuart Oserman graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Oserman graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stuart Oserman'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| Industry payments | Open Payments (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. Stuart Oserman
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. Stuart Oserman's NPI number?
Dr. Stuart Oserman's NPI number is 1750326450. It was assigned on June 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stuart Oserman?
Dr. Stuart Oserman is an internist in Park Ridge, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Stuart Oserman practice?
Dr. Oserman practices at 1775 Ballard Rd, Park Ridge, IL 60068. Dr. Oserman's primary practice is A2Cl Services, LLC in Park Ridge, Illinois. Dmand AI also links Dr. Oserman to 1 group practice or clinic and 1 medical group.
What is Dr. Stuart Oserman's office phone number?
The practice phone on file for Dr. Oserman is (847) 349-7000.
What is Dr. Stuart Oserman's medical license number?
Dr. Oserman holds Illinois license 03659157.
Does Dr. Stuart Oserman accept Medicare?
Yes. CMS data shows Dr. Oserman billed Medicare for 1,152 services in 2024.
How many Medicare patients does Dr. Stuart Oserman see?
CMS counts 192 Medicare patients who saw Dr. Oserman in 2024, with an average age of 77.
What services does Dr. Stuart Oserman bill to Medicare?
In 2024, Dr. Oserman's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and office visit, established patient (99213).
Where did Dr. Stuart Oserman go to medical school?
Dr. Oserman graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1978.
What drugs does Dr. Stuart Oserman prescribe most?
In 2024 Medicare Part D data, Dr. Oserman's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Stuart Oserman received payments from drug or device companies?
CMS Open Payments shows $78 in general payments to Dr. Oserman from 1 company from 2016 to 2016. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Stuart Oserman been practicing?
Dr. Oserman graduated from medical school in 1978, 48 years ago.
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