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

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: July 19, 2026.

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.Information from the official NPPES registry record, last updated June 2, 2022.

NPPES Registry Identity

NPI1083626378
Entity TypeIndividualMale
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
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. How NPI validation works

Primary Specialty

Emergency Medicine

Taxonomy 207P00000X · Allopathic & Osteopathic Physicians

Licensed in IL · 036113502

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… Show more

4440 W 95TH ST, Oak Lawn, IL 60453

Also on File with NPPES

Other Identifiers1
36113502 (Medicaid, IL)

Medicare Participation & PECOS Enrollment Status

Dennis Ryan is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Critical care, first 30-74 minutes

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.

This service was performed 27 times for 27 patients

Emergency department visit for life threatening or functioning severity

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.

This service was performed 66 times for 65 patients

Emergency department visit for problem of high severity

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.

This service was performed 92 times for 91 patients

Emergency department visit for problem of moderate severity

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.

This service was performed 39 times for 39 patients

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 60453 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $94.06
  • Minimum New Patient Price $60.08
  • Maximum New Patient Price $183.39
  • Average New Patient Copayment $23.51
  • Minimum New Patient Copayment $15.02
  • Maximum New Patient Copayment $45.84

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $105.7
  • Minimum Established Patient Price $18.97
  • Maximum Established Patient Price $148.12
  • Average Established Patient Copayment $26.42
  • Minimum Established Patient Copayment $4.74
  • Maximum Established Patient Copayment $37.03

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for DR. DENNIS JOHN RYAN M.D.

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Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pediatrics (Pediatric Gastroenterology)
4440 W 95TH ST
OAK LAWN, IL 60453
Internal Medicine (Infectious Disease)
4440 W 95TH ST
OAK LAWN, IL 60453
Physical Medicine & Rehabilitation
4440 W 95TH ST, EMG LAB, ROOM 042 SOUTH
OAK LAWN, IL 60453
Pediatrics (Pediatric Cardiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Pediatrics (Pediatric Cardiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Radiation Oncology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Radiation Oncology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Radiation Oncology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Radiation Oncology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453
Radiology (Diagnostic Radiology)
4440 W 95TH ST
OAK LAWN, IL 60453

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1083626378, enumerated as an "individual" on August 13, 2006.

The provider is located at 4440 W 95TH ST OAK LAWN, IL 60453 and the phone number is (708) 684-8000.

Emergency Medicine with taxonomy code 207P00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.