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ONELLA ATHNAIEL MD
NPI 1720846207
Anesthesiology in Chicago, IL

Active since March 11, 2024PECOS Enrolled
251 E HURON ST, CHICAGO, IL 60611(312) 926-2000 Get Directions Write a Review

NPPES record last updated: June 10, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 2, 2026, Jun 21, 2025, Mar 24, 2025 and 1 more (4 updates tracked since 2024).

About Onella Athnaiel Md NPPES

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

ONELLA ATHNAIEL MD (NPI 1720846207) is an individual anesthesiology provider in Chicago, Illinois, licensed in Illinois (125.085384) and active in the NPI registry since March 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1720846207
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameONELLA ATHNAIELCredential: MD
Location Address251 E HURON STChicago, IL 60611-2908
Mailing Address251 E Huron StChicago, IL 60611-2908 · (312) 926-2000
Phone(312) 926-2000
Sole ProprietorNo
Enumeration DateMarch 11, 2024
Last NPPES UpdateJune 10, 20264 updates tracked since enumeration
NPPES CertifiedJune 10, 2026
✔ NPI 1720846207 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IL · 125.085384
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.
251 E HURON ST, Chicago, IL 60611
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Onella Athnaiel Md 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.

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.

MARK WANG M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
251 E HURON ST, FEINBERG PAVILION
CHICAGO, IL 60611
Cook County (312) 503-8144
DR. MARLEY ANN DOYLE M/D.
Psychiatry & Neurology (Psychiatry)
251 E HURON ST, GALTER 3-150, C
CHICAGO, IL 60611
Cook County (312) 926-6895
CASSIDY SCHWAB MD
Anesthesiology
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 695-0061
SEONG PARK
Internal Medicine
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000
EMMA WALLS GREEVER MD
Emergency Medicine
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000
NICOLE ELIZABETH TRUPIANO MD
Dermatology
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000
ASHRAF SAMHAN MD
Internal Medicine
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000
DR. SABINA SPIGNER MD, MS, MPH
Obstetrics & Gynecology
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000

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 Onella Athnaiel's NPI number?

The NPI number for Onella Athnaiel is 1720846207. It was assigned to this individual provider in the NPPES registry on March 11, 2024.

Where is Onella Athnaiel located?

Onella Athnaiel practices at 251 E Huron St, Chicago, IL 60611. The listed phone number is (312) 926-2000.

What is Onella Athnaiel's specialty?

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

Is Onella Athnaiel enrolled in Medicare?

Yes. Onella Athnaiel is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Onella Athnaiel was last updated on June 10, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.