Active NPI 1689930968 Individual Practitioner Male Practitioner

Dr. Eric D Leser , MD

Emergency Medicine • Chicago, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Eric Leser, MD is a certified Emergency Medicine practicing in Chicago, IL. With approximately 14 years of clinical experience since graduating from Loyola University Of Chicago, Stritch School Of Medicine in 2012, Dr. Leser delivers high-quality medical care to the local community at 1900 W. POLK.

Dr. Leser is affiliated with Cook County and accepts Medicare assignment.

Frequently performed procedures and clinical services include emergency department visit with moderate level of medical decision making, emergency department visit for life threatening or functioning severity, emergency department visit with low level of medical decision making. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1900 W. Polk
Cook County Emergency Medicine Residency Program

Chicago, IL 60612

Telephone 3128640060

Associated Practice Facility / Clinic

🏢 John Stroger Jr. Hospital Of The Cook County Facility NPI 1023257151

Medicare Profile & Education

Medical School

Loyola University Of Chicago, Stritch School Of Medicine

Graduation Year

2012

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Emergency Medicine in Chicago, IL

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

14 Yrs +0.1 yrs vs City Avg

City Avg: 13.9 Yrs

State Avg: 24.6 Yrs

Regional Practice Density

1335 Specialists

Practicing in Chicago, IL (3389 Statewide)

Telehealth Adoption Rate

1.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

60.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Leser (14 Years) 14 Yrs

Chicago Specialty Average (13.9 Years) 13.9 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99284 Emergency department visit with moderate level of medical decision making	42	41	$321.00	$127.98
99285 Emergency department visit for life threatening or functioning severity	36	36	$465.22	$185.67
99283 Emergency department visit with low level of medical decision making	12	12	$189.00	$75.19

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	129	128	$1007.89	$184.38
99284 Emergency department visit with moderate level of medical decision making	34	33	$646.41	$127.94
99283 Emergency department visit with low level of medical decision making	12	12	$347.00	$77.67
99291 Critical care, first 30-74 minutes	12	12	$984.75	$223.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99284 Emergency department visit with moderate level of medical decision making	167	166	$594.00	$134.13
99283 Emergency department visit with low level of medical decision making	39	39	$347.00	$78.71
99285 Emergency department visit for life threatening or functioning severity	36	36	$867.00	$195.29
99282 Emergency department visit with straightforward medical decision making	16	16	$290.00	$46.78
99291 Critical care, first 30-74 minutes	14	14	$700.00	$235.82

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	267	248	$1455.88	$184.70
99284 Emergency department visit with moderate level of medical decision making	69	69	$913.30	$127.83
99283 Emergency department visit with low level of medical decision making	50	50	$474.68	$76.31
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	39	39	$114.49	$8.34

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	445	416	$1534.72	$177.80
99284 Emergency department visit with moderate level of medical decision making	149	147	$1043.83	$121.59
99283 Emergency department visit with low level of medical decision making	35	35	$698.09	$66.60
99291 Critical care, first 30-74 minutes	14	14	$1765.86	$225.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	633	574	$1530.89	$174.01
99284 Emergency department visit with moderate level of medical decision making	143	132	$1046.90	$117.49
99283 Emergency department visit with low level of medical decision making	38	37	$707.03	$60.57
99291 Critical care, first 30-74 minutes	12	12	$1756.50	$221.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	665	605	$1530.46	$173.15
99284 Emergency department visit with moderate level of medical decision making	170	161	$1048.15	$117.85
99283 Emergency department visit with low level of medical decision making	50	50	$707.90	$62.01
99291 Critical care, first 30-74 minutes	12	12	$1767.83	$221.89

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	600	561	$1323.08	$173.05
99284 Emergency department visit with moderate level of medical decision making	171	168	$899.51	$117.61
99283 Emergency department visit with low level of medical decision making	54	49	$541.80	$61.95

Medical Specialties & State Licenses

CMS Verified: 2022-05-23

Emergency Medicine Primary Specialty

NUCC Taxonomy Code: 207P00000X

State License IL 036140428

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Hospital & Practice Group Affiliations

Cook County

1901 W Harrison St, Chicago, IL 606123714

Phone: 3126337292

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

26 Associated Practitioners

Dr. Helen Straus , MD

Emergency Medicine

NPI 1013038827

Doctor of Medicine (M.D.)

Dr. Rebecca Bower-Lewis , MD

Emergency Medicine

NPI 1013224153

Doctor of Medicine (M.D.)

Dr. Lisa Palivos , MD

Emergency Medicine

NPI 1033231857

Doctor of Medicine (M.D.)

Dr. Ghazal Shafiei , MD

Emergency Medicine

NPI 1093036188

Doctor of Medicine (M.D.)

Dr. Ronald Kim , MD

Emergency Medicine

NPI 1104076074

Doctor of Medicine (M.D.)

Dr. Patrick Whiteley , MD

Emergency Medicine

NPI 1124284880

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events

✅

NPI Profile Active March 08, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location March 08, 2017

Registered at 1900 W. POLK, COOK COUNTY EMERGENCY MEDICINE RESIDENCY PROGRAM, CHICAGO, IL 60612 (Tel: 3128640060)

📍

Updated Business Mailing Address March 08, 2017

Registered at 3107 W ARGYLE ST, UNIT 1, CHICAGO, IL 606254274 (Tel: 7194914562)

👤

Provider Name / Credentials Updated March 08, 2017

Recorded as ERIC LESER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 08, 2017

Emergency Medicine (License #036140428 in IL)

✅

NPI Profile Active April 11, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location April 11, 2012

Registered at 1900 W. POLK, COOK COUNTY EMERGENCY MEDICINE RESIDENCY PROGRAM, CHICAGO, IL 60612 (Tel: 3128640060)

📍

Updated Business Mailing Address April 11, 2012

Registered at 3107 W ARGYLE ST, UNIT 1, CHICAGO, IL 606254274 (Tel: 7194914562)

👤

Provider Name / Credentials Updated April 11, 2012

Recorded as ERIC LESER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 11, 2012

Student in an Organized Health Care Education/Training Program

🟢

Initial NPI Registration & Enumeration April 11, 2012

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1689930968

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: April 11, 2012

Last Update: May 23, 2022

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

3107 W Argyle St, Unit 1

Chicago, IL 606254274

Phone: 7194914562

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.