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ANWULI O. OKOLI M.D.
NPI 1225090533
Anesthesiology - Pain Medicine in Oak Lawn, IL

Active since April 03, 2006PECOS EnrolledAccepts Medicare Assignment
4440 W 95TH ST FL 7, OAK LAWN, IL 60453(708) 684-4584(708) 520-1919 Get Directions Write a Review

NPPES record last updated: May 30, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 30, 2023, Aug 15, 2016 (2 updates tracked since 2016).

About Anwuli O. Okoli M.d. NPPES

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

ANWULI O. OKOLI M.D. (NPI 1225090533) is an individual pain medicine provider in Oak Lawn, Illinois, licensed in Illinois (036100619) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS, is affiliated with Advocate Trinity Hospital, and maintains a secondary practice location in Gurnee.

NPPES Registry Identity

NPI1225090533
Entity TypeIndividualFemale
Primary Taxonomy207LP2900X
Provider Legal NameANWULI O. OKOLICredential: M.D.
Location Address4440 W 95TH ST FL 7Oak Lawn, IL 60453-2600
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900
Phone(708) 684-4584
Fax(708) 520-1919
Sole ProprietorYes
Medical School CMSOtherGraduated 1990
Enumeration DateApril 3, 2006
Last NPPES UpdateMay 30, 20232 updates tracked since enumeration
NPPES CertifiedMay 30, 2023
✔ NPI 1225090533 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207LP2900X
License✔ Licensed in IL · 036100619
Definition
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.
4440 W 95TH ST FL 7, Oak Lawn, IL 60453
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Secondary Practice Location 1

Location 130 Tower Ct, Suite cGurnee, IL 60031-3322 · Phone (847) 672-6478 · Fax (847) 672-7432

Other Identifiers 2

Other04920125IL · Bc/bs Of Il
Medicaid0361006191IL

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

Anwuli O. Okoli 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 ID1052321304
PECOS Enrollment IDI20060501000617
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 Reassignments

3

Medicare enrollment records show Anwuli Okoli reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advocate Health & Hospitals Corporation
Same address
Medical Specialty
4440 W 95TH ST
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
NPI 1912936014 (847) 390-5900
Midwest Anesthesia Partners, LLC
16 mi
Anesthesiology
2900 N LAKE SHORE DR
Chicago, IL 60657
  • Reassigned Medicare billing, Illinois enrollment
  • 385 clinicians in this Medicare group
NPI 1255380184 (773) 388-5700
Windy City Anesthesia PC
16 mi
Nurse Anesthetist, Certified Registered
21120 WASHINGTON PKWY
Frankfort, IL 60423
  • Reassigned Medicare billing, Illinois enrollment
  • 164 clinicians in this Medicare group
NPI 1932248622 (847) 691-9080

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 11

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.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
100 services100 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
87 services55 patients
Injection of substance into lower spine canal using imaging guidance 62323
This procedure involves injecting a substance into your lower spine canal, guided by real-time images. It's done to diagnose or treat various conditions. You may feel slight discomfort, but it's generally safe and can provide valuable information for your treatment plan.
65 services52 patients
Injection of lower or sacral spine facet joint using imaging guidance, single level 64493
This procedure involves injecting medication into the facet joint in your lower back or sacral spine. It's done under imaging guidance to ensure accuracy. The aim is to alleviate pain and inflammation. It's a safe, often effective method for managing spinal discomfort.
29 services16 patients
Injection of lower or sacral spine facet joint using imaging guidance, second level 64494
This procedure involves injecting medication into the facet joints of your lower or sacral spine to manage pain. Imaging guidance ensures accurate placement. It's the second level, meaning it's done on two different joint levels.
28 services16 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
24 services22 patients

Hospital Affiliations CMS Care Compare 2

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

Advocate Trinity Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140048
Location2320 E 93rd StChicago, IL 60617 · Cook County
Emergency services Birthing friendly

Advocate Christ Hospital & Medical Center

Acute Care Hospitals · Oak Lawn, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140208
Location4440 W 95th StreetOak Lawn, IL 60453 · Cook County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRITTANY FAURIE DPT
Physical Therapist
4440 W 95TH ST FL 7
OAK LAWN, IL 60453
Cook County (708) 684-9890

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 Anwuli Okoli's NPI number?

The NPI number for Anwuli Okoli is 1225090533. It was assigned to this individual provider in the NPPES registry on April 3, 2006.

Where is Anwuli Okoli located?

Anwuli Okoli practices at 4440 W 95th St Fl 7, Oak Lawn, IL 60453. The listed phone number is (708) 684-4584.

What is Anwuli Okoli's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is Anwuli Okoli enrolled in Medicare?

Yes. Anwuli Okoli 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 organizations bill Medicare for Anwuli Okoli's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anwuli Okoli reassigns Medicare benefits to 3 organizations: Advocate Health & Hospitals Corporation (Oak Lawn, IL), Midwest Anesthesia Partners, LLC (Chicago, IL) and Windy City Anesthesia PC (Frankfort, IL). Each 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 Anwuli Okoli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Anwuli Okoli accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Anwuli Okoli 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 Anwuli Okoli affiliated with any hospitals?

According to CMS data, Anwuli Okoli is affiliated with Advocate Trinity Hospital and Advocate Christ Hospital & Medical Center.

When was this NPI record last updated?

The NPPES record for Anwuli Okoli was last updated on May 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.