Dr. Sean Seosap Ryan, MD
- Medicare services, 2024
- 841
- Medicare patients, 2024
- 351
- Part D claims, 2024
- 126
- Hospital affiliations
- 2
- Industry payments
- $270
- Practice address
- 1653 West Congress Parkway, Chicago, IL 60612
- Practice phone
- Call (312) 942-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ryan's professional email, personal email and mobile number
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Dr. Sean Seosap Ryan is a hospitalist in Chicago, Illinois
Dr. Ryan practices at Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.
Dr. Ryan's NPI, 1841584992, was assigned on June 7, 2011. Dr. Ryan holds Illinois license 036-099387.
- NPI
- 1841584992NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779755145
- NPI enumeration date
- June 7, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 942-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sean Seosap Ryan practices at Rush University Medical Center in Chicago, Illinois
Dr. Ryan's primary practice is Rush University Medical Center, at 1653 West Congress Parkway, Chicago, IL 60612 in Cook County. The practice phone is (312) 942-5000.
- Rush University Medical Center1653 West Congress Parkway, Chicago, IL 60612 · Cook CountyPhone(312) 942-5000
Source: Dmand AI Affiliation Data
Dr. Sean Seosap Ryan is affiliated with 2 sites of care and 1 medical group
Dr. Ryan's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Dr. Ryan is also affiliated with Rush Oak Park Hospital. The medical group on file is Rush University Internists.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sean Seosap Ryan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ryan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rush University Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sean Seosap Ryan is one of 1,321 hospitalists in Illinois
Hospitalist is Dr. Ryan's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Ryan is licensed in Illinois.
Specialties and state licenses
- Hospitalist, IllinoisPrimary
Hospitalists near Dr. Ryan
Counts of hospitalists 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. Sean Seosap Ryan billed Medicare for 841 services in 2024
CMS data shows 841 Medicare services from Dr. Ryan across 8 procedure codes in 2024, for 351 Medicare patients. Medicare paid $74,392 for them.
Dr. Ryan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9222024: 81112%
- Lab and pathology
- 2023: 462024: 3035%
Where Dr. Ryan's Medicare services took place, 2024
- In an office11814%
- In a facility72386%
Dr. Ryan compared with the Illinois median for hospitalists, 2024
- Dr. Ryan
- Illinois median
- Medicare services
- 841vs 54355% above
- Medicare patients
- 351vs 24245% above
- Part D claims
- 11vs 5379% below
Medians across 1,248 hospitalists in Illinois with Dmand AI profiles that report each measure.
Dr. Ryan'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sean Seosap Ryan treated 351 Medicare patients in 2024, average age 72
CMS counts 351 Medicare patients who saw Dr. Ryan in 2024. The largest group is 65 to 74, with 163 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.40, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ryan's median patient age at 68, with 55% women.
Dr. Ryan's Medicare patients by age, 2024
Dr. Ryan's Medicare patients by sex, 2024
- Women18854%
- Men16346%
Chronic conditions among Dr. Ryan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis71%
- Ischemic heart disease46%
- Chronic kidney disease42%
- Diabetes42%
- Anxiety33%
- Mood disorders33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ryan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sean Seosap Ryan wrote 126 Medicare Part D claims in 2024
In 2024, Dr. Ryan wrote 126 Medicare Part D claims for 67 patients. 82% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $68 in total drug cost. In 2020, CMS named 17 claims across 1 drug.
Dr. Ryan's Part D claims by kind of drug, 2024
- Generic103 claims82%
- Brand-name23 claims18%
Dr. Ryan's most prescribed drugs by claims, 2021
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. Ryan's Part D claims, 2024
- Opioids19%24 of 126 claims
- Antibiotics22%28 of 126 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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 172021: 1135%
Drugs named by CMS: 1 in 2021, 1 in 2020.
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. Sean Seosap Ryan takes part in Medicare
Dr. Ryan 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. Sean Seosap Ryan received $270 in industry payments from 2016 to 2019
CMS Open Payments shows 2 general payments to Dr. Ryan from 2 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 63% of the total. Smith & Nephew, Inc. paid the most, $170.
General payments to Dr. Ryan by program year, 2016 to 2019
General payments to Dr. Ryan by kind, 2016 to 2019
- Food and beverage$17063%
- Education$10037%
Companies that paid Dr. Ryan the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Sean Seosap Ryan'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) |
| 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. Sean Seosap Ryan
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. Sean Seosap Ryan's NPI number?
Dr. Sean Seosap Ryan's NPI number is 1841584992. It was assigned on June 7, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Sean Seosap Ryan?
Dr. Sean Seosap Ryan is a hospitalist in Chicago, Illinois. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Sean Seosap Ryan practice?
Dr. Ryan practices at 1653 West Congress Parkway, Chicago, IL 60612. Dr. Ryan's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.
What is Dr. Sean Seosap Ryan's office phone number?
The practice phone on file for Dr. Ryan is (312) 942-5000.
What is Dr. Sean Seosap Ryan's medical license number?
Dr. Ryan holds Illinois license 036-099387.
Which hospitals is Dr. Sean Seosap Ryan affiliated with?
Dr. Ryan practices at Rush University Medical Center in Chicago, Illinois. Dr. Ryan is also affiliated with Rush Oak Park Hospital.
What medical group is Dr. Sean Seosap Ryan part of?
Dr. Ryan is linked to Rush University Internists.
Does Dr. Sean Seosap Ryan accept Medicare?
Yes. CMS data shows Dr. Ryan billed Medicare for 841 services in 2024, and Dr. Ryan accepts Medicare assignment.
How many Medicare patients does Dr. Sean Seosap Ryan see?
CMS counts 351 Medicare patients who saw Dr. Ryan in 2024, with an average age of 72.
What services does Dr. Sean Seosap Ryan bill to Medicare?
In 2024, Dr. Ryan's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and office visit, new patient (99205).
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What drugs does Dr. Sean Seosap Ryan prescribe most?
In 2021 Medicare Part D data, Dr. Ryan's most prescribed drugs by claims were Furosemide.
Has Dr. Sean Seosap Ryan received payments from drug or device companies?
CMS Open Payments shows $270 in general payments to Dr. Ryan from 2 companies from 2016 to 2019. The largest total came from Smith & Nephew, Inc.
How long has Dr. Sean Seosap Ryan been practicing?
Dr. Ryan graduated from medical school in 1991, 35 years ago.
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