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MARK ANTHONY MCKAY JR. MD
NPI 1841871829
Anesthesiology in Chicago, IL

Active since April 20, 2021PECOS EnrolledAccepts Medicare Assignment
UNIVERSITY OF ILLINOIS HOSPITAL, 1740 W. TAYLOR ST., CHICAGO, IL 60612(866) 600-2273 Get Directions Write a Review

NPPES record last updated: September 15, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 15, 2025, Apr 20, 2021 (2 updates tracked since 2021).

About Mark Anthony Mckay Jr. Md NPPES

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

MARK ANTHONY MCKAY JR. MD (NPI 1841871829) is an individual anesthesiology provider in Chicago, Illinois, licensed in New York (335900) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Meharry Medical College School Of Medicine (2021).

NPPES Registry Identity

NPI1841871829
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMARK ANTHONY MCKAY JR.Credential: MD
Location AddressUNIVERSITY OF ILLINOIS HOSPITAL, 1740 W. TAYLOR ST.Chicago, IL 60612
Mailing Address11911 Wake Bluff DrvieRaleigh, NC 27614
Phone(866) 600-2273
Sole ProprietorNo
Medical School CMSMeharry Medical College School Of MedicineGraduated 2021
Enumeration DateApril 20, 2021
Last NPPES UpdateSeptember 15, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 15, 2025
✔ NPI 1841871829 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NY · 335900
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.
UNIVERSITY OF ILLINOIS HOSPITAL, 1740 W. TAYLOR ST., Chicago, IL 60612
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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

Mark Anthony Mckay Jr. 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 ID6507268604
PECOS Enrollment IDI20250515000690
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 Mark Mckay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

New York University
714 mi
Cardiovascular Disease
1985 CROMPOND RD
Cortlandt Manor, NY 10567
  • Reassigned Medicare billing, New York enrollment
  • 1,074 clinicians in this Medicare group
NPI 1881987246 (914) 736-0703

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.

Nyu Langone Hospitals

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330214
Location550 First AvenueNew York, NY 10016 · New York 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.

JAKE KOPLOWITZ
Student in an Organized Health Care Education/Training Program
UNIVERSITY OF ILLINOIS HOSPITAL, 1740 W. TAYLOR ST.
CHICAGO, IL 60612
Cook County (708) 684-5674

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 Mark Mckay's NPI number?

The NPI number for Mark Mckay is 1841871829. It was assigned to this individual provider in the NPPES registry on April 20, 2021.

Where is Mark Mckay located?

Mark Mckay practices at University Of Illinois Hospital, 1740 W. Taylor St., Chicago, IL 60612. The listed phone number is (866) 600-2273.

What is Mark Mckay's specialty?

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

Is Mark Mckay enrolled in Medicare?

Yes. Mark Mckay 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 Mark Mckay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Mckay reassigns Medicare benefits to New York University (Cortlandt Manor, NY). 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 Mark Mckay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Mark Mckay affiliated with any hospitals?

According to CMS data, Mark Mckay is affiliated with Nyu Langone Hospitals.

When was this NPI record last updated?

The NPPES record for Mark Mckay was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.