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DR. EVAN NICHOLAS LIAN MD
NPI 1679035729
Anesthesiology in Chicago, IL

Active since April 05, 2019PECOS EnrolledAccepts Medicare Assignment
836 W WELLINGTON AVE, CHICAGO, IL 60657(773) 975-1600(773) 296-5088 Get Directions Write a Review

NPPES record last updated: February 20, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 20, 2025, Oct 13, 2021, Apr 5, 2019 (3 updates tracked since 2019).

About Dr. Evan Nicholas Lian Md NPPES

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

DR. EVAN NICHOLAS LIAN MD (NPI 1679035729) is an individual anesthesiology provider in Chicago, Illinois, licensed in Illinois (036-172748) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1679035729
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. EVAN NICHOLAS LIANCredential: MD
Location Address836 W WELLINGTON AVEChicago, IL 60657-5147
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900
Phone(773) 975-1600
Fax(773) 296-5088
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 5, 2019
Last NPPES UpdateFebruary 20, 20253 updates tracked since enumeration
NPPES CertifiedFebruary 20, 2025
✔ NPI 1679035729 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in IL · 036-172748✔ Licensed in IL · 125074999
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
836 W WELLINGTON AVE, Chicago, IL 60657
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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. Evan Nicholas Lian Md 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 ID9133655236
PECOS Enrollment IDI20241212002942
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 Evan Lian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Advocate Health And Hospitals Corp.
0.9 mi
Cardiovascular Disease
3118 N ASHLAND AVE
Chicago, IL 60657
  • Reassigned Medicare billing, Illinois enrollment
  • 4,870 clinicians in this Medicare group
NPI 1487951711 (773) 880-9722

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

Hospital Affiliations CMS Care Compare

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

Advocate Illinois Masonic Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140182
Location836 West Wellington AvenueChicago, IL 60657 · Cook County
Emergency services Birthing friendly

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.

DR. ROBERT R TURELLI JR. MD
Emergency Medicine
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5878
JAYME L. CAPPA
Speech-Language Pathologist
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-7988
DR. CHIMUANYA OKOLI MD
Internal Medicine (Sleep Medicine)
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5424
DEBRA FARIDA
Nurse Anesthetist, Certified Registered
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 975-1600
MALIK SAHOURI DO
Anesthesiology
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5187
SERGIO GUTIERREZ NUNEZ MD
Anesthesiology
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-5187
MS. NOREEN MARIE SHERIDAN RD. LDN,CDE
Dietitian, Registered
836 W WELLINGTON AVE, FOOD AND NUTRITION DEPT.
CHICAGO, IL 60657
Cook County (773) 296-5912
ANN M HARVEY APN, CNP
Nurse Practitioner
836 W WELLINGTON AVE
CHICAGO, IL 60657
Cook County (773) 296-3646

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 Evan Lian's NPI number?

The NPI number for Evan Lian is 1679035729. It was assigned to this individual provider in the NPPES registry on April 5, 2019.

Where is Evan Lian located?

Evan Lian practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 975-1600.

What is Evan Lian's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Evan Lian enrolled in Medicare?

Yes. Evan Lian 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 Evan Lian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Evan Lian reassigns Medicare benefits to Advocate Health And Hospitals Corp. (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 Evan Lian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Evan Lian affiliated with any hospitals?

According to CMS data, Evan Lian is affiliated with Advocate Illinois Masonic Medical Center.

When was this NPI record last updated?

The NPPES record for Evan Lian was last updated on February 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months 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.