DR. DENNIS JOHN RYAN M.D.
NPI 1083626378
Emergency Medicine in Oak Lawn, IL

Q: What is Dennis Ryan's NPI number?

The NPI number for Dennis Ryan is 1083626378. It was assigned to this individual provider in the NPPES registry on August 13, 2006.

Q: What is Dennis Ryan's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Dennis Ryan was last updated on June 2, 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 August 13, 2006PECOS Enrolled

4440 W 95TH ST, OAK LAWN, IL 60453(708) 684-8000 Get Directions Write a Review

NPPES record last updated: June 2, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Dennis John Ryan M.d. NPPES

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

DR. DENNIS JOHN RYAN M.D. (NPI 1083626378) is an individual emergency medicine provider in Oak Lawn, Illinois, licensed in Illinois (036113502) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083626378

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameDR. DENNIS JOHN RYANCredential: M.D.

Location Address4440 W 95TH STOak Lawn, IL 60453-2600

Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900

Phone(708) 684-8000

Sole ProprietorYes

Enumeration DateAugust 13, 2006

Last NPPES UpdateJune 2, 2022

NPPES CertifiedJune 2, 2022

✔ NPI 1083626378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in IL · 036113502

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

4440 W 95TH ST, Oak Lawn, IL 60453

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Other Identifiers 1

Medicaid36113502IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Dennis John Ryan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Areas of Expertise CMS Part B claims 4

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

120 services118 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

50 services49 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

20 services20 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60453 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

$94.06 typical visit price

range $60.08 – $183.39

Typical copayment $23.51 (range $15.02 – $45.84)

Most-billed visit code 99203

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.

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