Dr. Assaad Youssef Semaan, MD
- Medicare services, 2024
- 269
- Medicare patients, 2024
- 167
- Part D claims, 2024
- 78
- Hospital affiliations
- 2
- Industry payments
- $595
- Practice address
- 1555 N Barrington Rd, Hoffman Estates, IL 60169
- Practice phone
- Call (847) 843-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Semaan's professional email, personal email and mobile number
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Dr. Assaad Youssef Semaan is a gynecologic oncologist in Hoffman Estates, Illinois
Dr. Semaan practices at Ascension Saint Alexius in Hoffman Estates, Illinois, part of Ascension Health Alliance.
Dr. Semaan's NPI, 1841457975, was assigned on May 16, 2008. Dr. Semaan holds Illinois license 036131898.
- NPI
- 1841457975NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618117961
- NPI enumeration date
- May 16, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 843-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Assaad Youssef Semaan practices at Ascension Saint Alexius in Hoffman Estates, Illinois
Dr. Semaan's primary practice is Ascension Saint Alexius, at 1555 N Barrington Rd, Hoffman Estates, IL 60169 in Cook County. The practice phone is (847) 843-2000.
- Ascension Saint Alexius1555 N Barrington Rd, Hoffman Estates, IL 60169 · Cook CountyPhone(847) 843-2000
Source: Dmand AI Affiliation Data
Dr. Assaad Youssef Semaan is affiliated with 3 sites of care and 2 medical groups
Dr. Semaan's primary practice is Ascension Saint Alexius in Hoffman Estates, Illinois, part of Ascension Health Alliance. Dr. Semaan is also affiliated with Ascension Alexian Brothers. The medical group on file is Alexian Brothers Medical Group Specialty Care. Dmand AI also links Dr. Semaan to 1 more breast imaging center 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. Assaad Youssef Semaan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Semaan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension Saint Alexius | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ascension Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Assaad Youssef Semaan is one of 70 gynecologic oncologists in Illinois
Gynecologic oncology is Dr. Semaan's primary specialty in the NPI Registry, under taxonomy code 207VX0201X. Dr. Semaan is licensed in Illinois.
Specialties and state licenses
- Gynecologic oncology, IllinoisPrimary
Gynecologic oncologists near Dr. Semaan
Counts of gynecologic oncologists 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. Assaad Youssef Semaan billed Medicare for 269 services in 2024
CMS data shows 269 Medicare services from Dr. Semaan across 4 procedure codes in 2024, for 167 Medicare patients. Medicare paid $41,152 for them.
Dr. Semaan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3432024: 23930%
- Surgery
- 2023: 132024: 30131%
Where Dr. Semaan's Medicare services took place, 2024
- In an office23989%
- In a facility3011%
Dr. Semaan compared with the Illinois median for gynecologic oncologists, 2024
- Dr. Semaan
- Illinois median
- Medicare services
- 269vs 21227% above
- Medicare patients
- 167vs 13227% above
- Part D claims
- 36vs 346% above
Medians across 71 gynecologic oncologists in Illinois with Dmand AI profiles that report each measure.
Dr. Semaan'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. Semaan and other gynecologic oncologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Assaad Youssef Semaan treated 167 Medicare patients in 2024, average age 74
CMS counts 167 Medicare patients who saw Dr. Semaan in 2024. The largest group is 65 to 74, with 79 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.34, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Semaan's median patient age at 63, with 99% women.
Dr. Semaan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Semaan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer58%
- Arthritis49%
- Diabetes36%
- Anxiety29%
- Chronic kidney disease26%
- Ischemic heart disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Semaan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women99%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Assaad Youssef Semaan wrote 78 Medicare Part D claims in 2024
In 2024, Dr. Semaan wrote 78 Medicare Part D claims for 54 patients. 96% of them were for generic drugs. CMS names the drug for 36 of them, across 1 drug with 11 or more claims each, at $189 in total drug cost. In 2023, CMS named 27 claims across 1 drug.
Dr. Semaan's Part D claims by kind of drug, 2024
- Generic75 claims96%
- Brand-name and other3 claims4%
Dr. Semaan'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. Semaan's Part D claims, 2024
- Opioids54%42 of 78 claims
- Antibiotics19%15 of 78 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: 272024: 3633%
Drugs named by CMS: 1 in 2024, 1 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
Dr. Assaad Youssef Semaan ranks in the 95th percentile for removal of the uterus in Medicare
Dr. Semaan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 25 procedures of removal of the uterus by Dr. Semaan, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Semaan ranks in Medicare procedure volume
- Removal of the uterus
- 95th percentile25 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Assaad Youssef Semaan received $595 in industry payments from 2016 to 2022
CMS Open Payments shows 8 general payments to Dr. Semaan from 6 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Intuitive Surgical, Inc. paid the most, $189.
General payments to Dr. Semaan by program year, 2016 to 2022
Companies that paid Dr. Semaan the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Assaad Youssef Semaan'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Assaad Youssef Semaan
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. Assaad Youssef Semaan's NPI number?
Dr. Assaad Youssef Semaan's NPI number is 1841457975. It was assigned on May 16, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Assaad Youssef Semaan?
Dr. Assaad Youssef Semaan is a gynecologic oncologist in Hoffman Estates, Illinois. The primary specialty in the NPI Registry is Gynecologic Oncology Physician (taxonomy code 207VX0201X).
Where does Dr. Assaad Youssef Semaan practice?
Dr. Semaan practices at 1555 N Barrington Rd, Hoffman Estates, IL 60169. Dr. Semaan's primary practice is Ascension Saint Alexius in Hoffman Estates, Illinois, part of Ascension Health Alliance. Dmand AI also links Dr. Semaan to 1 breast imaging center and 1 medical group.
What is Dr. Assaad Youssef Semaan's office phone number?
The practice phone on file for Dr. Semaan is (847) 843-2000.
What is Dr. Assaad Youssef Semaan's medical license number?
Dr. Semaan holds Illinois license 036131898.
Which hospitals is Dr. Assaad Youssef Semaan affiliated with?
Dr. Semaan practices at Ascension Saint Alexius in Hoffman Estates, Illinois. Dr. Semaan is also affiliated with Ascension Alexian Brothers.
What medical group is Dr. Assaad Youssef Semaan part of?
Dr. Semaan is linked to Alexian Brothers Medical Group Specialty Care. Dmand AI links Dr. Semaan to 1 more medical group.
Does Dr. Assaad Youssef Semaan accept Medicare?
Yes. CMS data shows Dr. Semaan billed Medicare for 269 services in 2024, and Dr. Semaan accepts Medicare assignment.
How many Medicare patients does Dr. Assaad Youssef Semaan see?
CMS counts 167 Medicare patients who saw Dr. Semaan in 2024, with an average age of 74.
What services does Dr. Assaad Youssef Semaan bill to Medicare?
In 2024, Dr. Semaan's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99205) and surgery: female reproductive system (58571).
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What drugs does Dr. Assaad Youssef Semaan prescribe most?
In 2024 Medicare Part D data, Dr. Semaan's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Assaad Youssef Semaan received payments from drug or device companies?
CMS Open Payments shows $595 in general payments to Dr. Semaan from 6 companies from 2016 to 2022. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Assaad Youssef Semaan been practicing?
Dr. Semaan graduated from medical school in 2003, 23 years ago.
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