DR. SEAN SEOSAP RYAN M.D.
NPI 1841584992
Hospitalist in Chicago, IL

Q: What is Sean Ryan's NPI number?

The NPI number for Sean Ryan is 1841584992. It was assigned to this individual provider in the NPPES registry on June 7, 2011.

Q: What is Sean Ryan's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Sean Ryan was last updated on April 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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 June 07, 2011PECOS EnrolledAccepts Medicare Assignment

1653 W CONGRESS PKWY, SUITE 325 JONES, CHICAGO, IL 60612(312) 942-4200(312) 942-3568 Get Directions Write a Review

NPPES record last updated: April 11, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Sean Seosap Ryan M.d. NPPES

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

DR. SEAN SEOSAP RYAN M.D. (NPI 1841584992) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036-099387) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1841584992

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameDR. SEAN SEOSAP RYANCredential: M.D.

Location Address1653 W CONGRESS PKWY, SUITE 325 JONESChicago, IL 60612-3833

Mailing Address1653 W Congress Pkwy, Suite 325 JonesChicago, IL 60612-3833 · (312) 942-4200 · Fax (312) 942-3568

Phone(312) 942-4200

Fax(312) 942-3568

Sole ProprietorNo

Medical School CMSOtherGraduated 1991

Enumeration DateJune 7, 2011

Last NPPES UpdateApril 11, 2022

NPPES CertifiedApril 11, 2022

✔ NPI 1841584992 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in IL · 036-099387

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 036-099387 (IL)

1653 W CONGRESS PKWY, Chicago, IL 60612

Open in Google Maps ↗

Other Identifiers 1

Medicaid891229ANC

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Sean Seosap Ryan M.d. 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 ID3779755145

PECOS Enrollment IDI20111006000404

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.

Medicare Billing Reassignment

Medicare enrollment records show Sean Ryan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rush University Medical Center

Same address

Diagnostic Radiology

1620 W HARRISON ST
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: Rush University Medical Group
2,169 clinicians in this Medicare group

NPI 1184269425 (312) 563-4270

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

350 services158 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

310 services127 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

39 services39 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

38 services37 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

38 services38 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

30 services30 patients

Hospital Affiliations CMS Care Compare 2

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

Rush Oak Park Hospital

Acute Care Hospitals · Oak Park, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140063

Location520 S Maple AveOak Park, IL 60304 · Cook County

Emergency services

Rush University Medical Center

Acute Care Hospitals · Chicago, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140119

Location1653 West Congress ParkwayChicago, IL 60612 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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.

KAITLIN ROBLING MD

Radiology (Diagnostic Radiology)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 942-5000

LAUREN ELIZABETH ARSENAULT MD

Radiology (Diagnostic Radiology)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 942-5781

ALEX MICHAEL JAMES

Student in an Organized Health Care Education/Training Program

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (888) 352-7874

WERNER MEIER M.D.

Pediatrics (Neonatal-Perinatal Medicine)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 942-7154

UNIVERSITY PATHOLOGISTS P C

Pathology (Anatomic Pathology & Clinical Pathology)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 942-5700

RUSH UNIVERSITY MEDICAL CENTER

Clinical Medical Laboratory

1653 W CONGRESS PKWY, ROOM 1188-JELKE
CHICAGO, IL 60612

Cook County (312) 942-2054

DR. PATOULA PANAGOS-BILLIRIS MD

Pediatrics (Neonatal-Perinatal Medicine)

1653 W CONGRESS PKWY, 3 PAVILLION
CHICAGO, IL 60612

Cook County (312) 942-3306

KAREN HARVEY

Nurse Practitioner (Psychiatric/Mental Health)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 947-0100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sean Ryan's NPI number?

The NPI number for Sean Ryan is 1841584992. It was assigned to this individual provider in the NPPES registry on June 7, 2011.

Where is Sean Ryan located?

Sean Ryan practices at 1653 W Congress Pkwy Suite 325 Jones, Chicago, IL 60612. The listed phone number is (312) 942-4200.

What is Sean Ryan's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Sean Ryan enrolled in Medicare?

Yes. Sean Ryan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Sean Ryan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sean Ryan reassigns Medicare benefits to Rush University Medical Center (Chicago, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sean Ryan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sean Ryan accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Sean Ryan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Sean Ryan affiliated with any hospitals?

According to CMS data, Sean Ryan is affiliated with Rush Oak Park Hospital and Rush University Medical Center.

When was this NPI record last updated?

The NPPES record for Sean Ryan was last updated on April 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.