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Andrew Hallmark

Anesthesiology β€’ Chicago, IL

Active NPI 1255992855 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

251 E Huron St
Chicago, IL 606112908

Call 6309334800 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

251 E Huron St

Chicago, IL 606112908

Telephone 6309334800
Organization at the Same NPPES Address or Phone
Northwestern Radiology Oncology Assoc Facility NPI 1831164052

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 2 distinct additional practice-address records in Ann Arbor, MI; San Bernardino, CA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 2 distinct group names: Faculty Physicians And Surgeons Of Llusm; Palm Springs Anesthesia Services Pc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

University Of Florida College Of Medicine

Graduation Year

2019

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

Years since graduation

7 years (graduated 2019)

CMS Doctors and Clinicians data list 2019 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2019

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Andrew Hallmark has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Andrew Hallmark as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Chicago and Illinois

1,114 active clinicians are listed under Anesthesiology with a practice address in Chicago, IL (2,577 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Chicago

1.7% of these 1,114 clinicians have the CMS telehealth indicator.

53.4% of these 1,114 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-04-06
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

License # reported to NPPES CA A192127

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.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

License # reported to NPPES MI 4351044182

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Anesthesiology

NUCC Taxonomy Code: 207L00000X

License # reported to NPPES IL 036.164135

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ANESTHESIOLOGY

Medicare Enrollment ID

I20240618004306

Enrollment State Jurisdiction

CA

PECOS Control ID

9234464579

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Faculty Physicians And Surgeons Of Llusm

File Number, Los Angeles, CA 900744701

Faculty Physicians And Surgeons Of Llusm

11370 Anderson St, Loma Linda, CA 923543450

Faculty Physicians And Surgeons Of Llusm

26780 Barton Rd, Redlands, CA 923734308

Phone: 9095585174

Faculty Physicians And Surgeons Of Llusm

11234 Anderson St, Loma Linda, CA 923542804

Palm Springs Anesthesia Services Pc

2101 N Waterman Ave, San Bernardino, CA 924044836

Phone: 7604495391

Secondary Practice Locations

2101 N Waterman Ave

San Bernardino, CA 924044836

Phone: 9098838711

U Of M Department Of Anesthesiology, 1500 E Medical Ctr 1h241 Uh

Ann Arbor, MI 481095048

Phone: 7349364280

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

40 listed
Dr. Brian Abarbanel , MD

Physical Medicine & Rehabilitation

NPI 1124600291

Doctor of Medicine (M.D.)

Dr. Mohamed Abazeed , MD, PhD

Radiology - Radiation Oncology

NPI 1205096609

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Allison Abbott

Nurse Anesthetist, Certified Registered

NPI 1720446594
Ramez Abdalla , MB, B CH

Radiology - Neuroradiology

NPI 1407410392

MB, BCH

Dr. Constants Adams , MD

Obstetrics & Gynecology

NPI 1508307810

Doctor of Medicine (M.D.)

NPI 1235417627

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
πŸ“
Updated Business Mailing Address April 06, 2026

Registered at 450 MAMARONECK AVE STE 201, HARRISON, NY 105282436 (Tel: 9097422689)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 06, 2026

Anesthesiology (license number reported to NPPES: CA A192127)

πŸ“
Updated Practice Location May 24, 2023

Registered at 251 E HURON ST, CHICAGO, IL 606112908 (Tel: 6309334800)

βœ…
NPI Profile Active June 25, 2019

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) June 25, 2019

Registered at U OF M DEPARTMENT OF ANESTHESIOLOGY, 1500 E MEDICAL CTR 1H241 UH, ANN ARBOR, MI 481095048 (Tel: 7349364280)

πŸ“
Business Mailing Address (Initial Record) June 25, 2019

Registered at U OF M DEPARTMENT OF ANESTHESIOLOGY, 1500 E MEDICAL CTR 1H241 UH, ANN ARBOR, MI 481095048 (Tel: 7349364280)

πŸ‘€
Provider Name / Credentials (Initial Record) June 25, 2019

Recorded as ANDREW HALLMARK

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 25, 2019

Student in an Organized Health Care Education/Training Program (license number reported to NPPES: MI 4351044182)

🟒
Initial NPI Registration & Enumeration June 25, 2019

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1255992855
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 25, 2019
Last Update: April 06, 2026
Sole Proprietor: No

Other Anesthesiology Specialists in Chicago

All Anesthesiology Specialists in Chicago

Mailing Address

450 Mamaroneck Ave Ste 201

Harrison, NY 105282436

Phone: 9097422689

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.