Active NPI 1104116847 Individual Practitioner Male Practitioner

Dr. Ying Hao Lai , MD

Surgery • Chicago, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Ying Lai, MD is a certified Surgery practicing in Chicago, IL. With approximately 15 years of clinical experience since graduating from Northwestern University Feinberg Medical School in 2011, Dr. Lai delivers high-quality medical care to the local community at 3000 N HALSTED ST STE 509.

Dr. Lai is affiliated with Advocate Health And Hospitals Corporation and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, new patient outpatient office visit, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3000 N Halsted St Ste 509

Chicago, IL 606575194

Telephone 7732963390

Associated Practice Facility / Clinic

🏢 Advocate Health And Hospitals Corporation Facility NPI 1700824455

Medicare Profile & Education

Medical School

Northwestern University Feinberg Medical School

Graduation Year

2011

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Chicago, IL

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

15 Yrs -7.3 yrs vs City Avg

City Avg: 22.3 Yrs

State Avg: 27.3 Yrs

Regional Practice Density

579 Specialists

Practicing in Chicago, IL (1624 Statewide)

Telehealth Adoption Rate

4.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

71.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Lai (15 Years) 15 Yrs

Chicago Specialty Average (22.3 Years) 22.3 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	57	20	$261.00	$120.16
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$249.00	$116.58
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	28	28	$370.00	$174.76
99213 Established patient office or other outpatient visit, typically 15 minutes	28	22	$195.88	$92.99
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	19	$315.00	$135.28
49650 Repair of groin hernia using an endoscope	11	11	$3010.91	$577.41
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$459.00	$164.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	59	24	$248.00	$120.46
99213 Established patient office or other outpatient visit, typically 15 minutes	29	24	$178.00	$92.43
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	27	26	$303.81	$137.23
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	26	26	$237.00	$114.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$352.00	$175.41
49650 Repair of groin hernia using an endoscope	13	13	$3694.15	$584.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	36	15	$241.00	$101.66
99213 Established patient office or other outpatient visit, typically 15 minutes	34	29	$161.00	$91.68
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	28	28	$352.00	$174.18
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	24	24	$304.29	$137.40
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$237.00	$121.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	32	19	$241.00	$106.15
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$341.00	$173.81
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	22	21	$304.68	$132.60
99213 Established patient office or other outpatient visit, typically 15 minutes	22	19	$153.00	$97.92
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	13	13	$437.00	$196.37
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$236.00	$121.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	31	26	$300.00	$148.70
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	22	18	$168.00	$77.11
99213 Established patient office or other outpatient visit, typically 15 minutes	22	19	$146.00	$79.91
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$341.00	$176.66
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	13	11	$241.00	$111.83

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	206	83	$255.37	$111.06
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	105	100	$502.38	$216.31
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	36	36	$388.50	$165.31
99213 Established patient office or other outpatient visit, typically 15 minutes	27	20	$166.67	$78.80
99285 Emergency department visit for life threatening or functioning severity	23	23	$499.00	$188.61
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	18	$308.33	$147.66
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	11	$118.18	$42.43
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$264.20	$116.41
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	14	11	$172.71	$77.95
47562 Removal of gallbladder using an endoscope	12	12	$3763.50	$769.26
11043 Removal of muscle and/or tissue, 20.0 sq cm or less	12	11	$1270.00	$167.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	309	105	$257.00	$110.63
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	150	142	$506.00	$214.42
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	43	16	$182.35	$77.33
99285 Emergency department visit for life threatening or functioning severity	25	24	$499.00	$181.08
99213 Established patient office or other outpatient visit, typically 15 minutes	23	17	$177.00	$76.82
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$323.00	$115.14
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	12	$370.57	$145.98
47562 Removal of gallbladder using an endoscope	13	13	$3711.00	$737.34
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$273.00	$105.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	117	64	$252.64	$110.68
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	103	101	$462.10	$214.68
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	85	45	$172.84	$76.14
99231 Follow-up hospital inpatient care per day, typically 15 minutes	27	19	$103.89	$41.65
99213 Established patient office or other outpatient visit, typically 15 minutes	20	16	$159.75	$76.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$367.50	$171.81
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$359.33	$145.93
47562 Removal of gallbladder using an endoscope	11	11	$3463.55	$727.67

Medical Specialties & State Licenses

CMS Verified: 2025-05-14

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License IL 036.140559

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Hospital & Practice Group Affiliations

Advocate Health And Hospitals Corporation

3000 N Halsted St, Chicago, IL 606576185

Phone: 7732967150

Advocate Health And Hospitals Corporation

214 Mchenry Rd, Buffalo Grove, IL 600896748

Phone: 8474591160

Advocate Health And Hospitals Corporation

836 W Wellington Ave, Chicago, IL 606575147

Advocate Health And Hospitals Corporation

18210 S Lagrange Rd, Tinley Park, IL 604877725

Phone: 7084796636

Advocate Health And Hospitals Corporation

836 W Wellington, Chicago, IL 606575147

Phone: 7732967147

Practice Associates & Co-Workers

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

12 Associated Practitioners

Lindsey Ploskonka , PA-C

Physician Assistant

NPI 1023771177

Physician Assistant (Certified)

Dr. Mark Keldahl , MD

Surgery - Vascular Surgery

NPI 1114181658

Doctor of Medicine (M.D.)

Dr. Celeste Cruz , MD

Surgery

NPI 1215270178

Doctor of Medicine (M.D.)

Dr. Nicholas Lysak , MD

Surgery - Vascular Surgery

NPI 1477972297

Doctor of Medicine (M.D.)

Dr. Rosalinda Alvarado , MD

Surgery - Surgical Oncology

NPI 1649564980

Doctor of Medicine (M.D.)

Dr. Omar Hassanein , MD

Surgery

NPI 1700142528

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

10 Historical Events

📍

Updated Business Mailing Address May 14, 2025

Registered at 29373 NETWORK PL, CHICAGO, IL 606731293 (Tel: 8473905900)

👤

Provider Name / Credentials Updated May 14, 2025

Recorded as YING LAI, M.D.

📍

Updated Practice Location December 28, 2021

Registered at 3000 N HALSTED ST STE 509, CHICAGO, IL 606575194 (Tel: 7732963390)

📍

Updated Business Mailing Address December 28, 2021

Registered at 3000 N HALSTED ST STE 509, CHICAGO, IL 606575194 (Tel: 7732963390)

✅

NPI Profile Active August 23, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location August 23, 2016

Registered at 2845 N SHERIDAN RD, SUITE 714, CHICAGO, IL 606577227 (Tel: 7735617911)

📍

Updated Business Mailing Address August 23, 2016

Registered at 2845 N SHERIDAN RD, SUITE 7114, CHICAGO, IL 606577227 (Tel: 7735617911)

👤

Provider Name / Credentials Updated August 23, 2016

Recorded as YING HAO LAI, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 23, 2016

Surgery (License #036.140559 in IL)

🟢

Initial NPI Registration & Enumeration April 14, 2011

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: 1104116847

Entity Type:

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

Enumeration Date: April 14, 2011

Last Update: May 14, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

29373 Network Pl

Chicago, IL 606731293

Phone: 8473905900

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.