Active NPI 1588777122 Individual Practitioner Female Practitioner

Dr. Chae Han - Chang , MD

Internal Medicine • Gurnee, IL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Chae Han - Chang, MD is a certified Internal Medicine practicing in Gurnee, IL. With approximately 31 years of clinical experience since completing medical education in 1995, Dr. Han - Chang delivers high-quality medical care to the local community at 731 S ILLINOIS ROUTE 21.

Dr. Han - Chang is affiliated with Northwestern Medical Faculty Foundation and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, insertion of needle into vein for collection of blood sample, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

731 S Illinois Route 21
Suite 130

Gurnee, IL 600313813

Telephone 8475663337

Fax 8478163166

Associated Practice Facility / Clinic

🏢 Deerpath Physicians Group Ltd Facility NPI 1942489075

Medicare Profile & Education

Medical School

Other

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Gurnee, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

31 Yrs +0.4 yrs vs City Avg

City Avg: 30.6 Yrs

State Avg: 28.9 Yrs

Regional Practice Density

30 Specialists

Practicing in Gurnee, IL (7544 Statewide)

Telehealth Adoption Rate

36.7% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

60.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Han - Chang (31 Years) 31 Yrs

Gurnee Specialty Average (30.6 Years) 30.6 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	24	21	$323.00	$133.58
36415 Insertion of needle into vein for collection of blood sample	21	20	$20.00	$8.65
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	15	15	$373.00	$136.52
99213 Established patient office or other outpatient visit, typically 15 minutes	12	12	$219.00	$94.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	178	135	$20.00	$8.31
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	101	101	$373.00	$136.48
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	100	75	$323.00	$132.80
99213 Established patient office or other outpatient visit, typically 15 minutes	88	69	$219.00	$95.48
G0009 Administration of pneumococcal vaccine	39	39	$57.00	$32.06
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	39	39	$397.00	$281.52
G0008 Administration of influenza virus vaccine	36	35	$57.00	$32.06
90662 Influenza vaccine split virus, preservative free	35	34	$110.00	$71.74
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	26	25	$434.00	$182.58
93000 Routine ekg using at least 12 leads including interpretation and report	17	17	$140.00	$15.45
99442 Telephone medical discussion with physician, 11-20 minutes	12	11	$175.00	$95.51

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	198	152	$20.00	$2.96
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	133	99	$323.00	$135.37
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	85	85	$373.00	$139.30
99213 Established patient office or other outpatient visit, typically 15 minutes	82	74	$219.00	$97.13
G0009 Administration of pneumococcal vaccine	38	38	$57.00	$31.33
G0008 Administration of influenza virus vaccine	29	29	$57.00	$31.07
90662 Influenza vaccine split virus, preservative free	28	28	$110.00	$68.54
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	28	24	$434.00	$186.55
93000 Routine ekg using at least 12 leads including interpretation and report	23	23	$140.00	$15.46
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	21	12	$68.00	$24.88
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	18	18	$425.28	$278.21
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$505.00	$179.22
99442 Telephone medical discussion with physician, 11-20 minutes	12	12	$175.00	$96.90
90670 Pneumococcal vaccine for injection into muscle	12	12	$343.00	$247.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	145	110	$20.00	$3.00
99213 Established patient office or other outpatient visit, typically 15 minutes	127	94	$219.00	$98.20
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	75	62	$323.00	$139.30
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	45	45	$373.00	$142.27
90662 Influenza vaccine split virus, preservative free	20	20	$105.50	$64.83
G0008 Administration of influenza virus vaccine	20	20	$57.00	$17.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$505.00	$180.44
93000 Routine ekg using at least 12 leads including interpretation and report	20	20	$140.00	$16.08
G0009 Administration of pneumococcal vaccine	16	16	$57.00	$17.94
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	12	11	$434.00	$194.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	48	42	$20.00	$3.00
99213 Established patient office or other outpatient visit, typically 15 minutes	43	37	$219.00	$81.19
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	34	31	$323.00	$117.50
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	19	19	$373.00	$124.94
G0008 Administration of influenza virus vaccine	18	18	$57.00	$17.75
90662 Influenza vaccine split virus, preservative free	18	18	$65.00	$60.98
G0009 Administration of pneumococcal vaccine	11	11	$57.00	$17.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	237	156	$58.00	$54.00
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	156	156	$252.78	$122.44
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	101	87	$124.16	$82.00
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	33	33	$381.00	$180.04
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	21	21	$32.00	$8.88
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	16	16	$404.00	$132.67
G0513 Prolonged preventive service(s) (beyond the typical service time of the primary procedure), in the office or other outpatient setting requiring direct patient contact beyond the usual service; first 30 minutes (list separately in addition to code for preve	13	13	$143.00	$64.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	310	205	$58.34	$53.66
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	125	125	$251.39	$121.30
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	125	100	$123.18	$82.49
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	31	31	$32.00	$8.90
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	28	28	$381.00	$178.71
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	21	21	$404.00	$132.70
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	17	13	$216.00	$56.55

Medical Specialties & State Licenses

CMS Verified: 2025-08-07

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License IL 036096132

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

036096132 (IL)

Commercial Insurance / Payer ID Blue Cross Blue Shield

04930281 (IL)

Hospital & Practice Group Affiliations

Northwestern Medical Faculty Foundation

350 S Waukegan Rd, Deerfield, IL 600155239

Phone: 3129266146

Secondary Practice Locations

350 S Waukegan Rd Ste 100&200

Deerfield, IL 600155239

Phone: 8473507297

870 N Milwaukee Ave Fl 2

Vernon Hills, IL 600611521

Phone: 8475357157

Practice Associates & Co-Workers

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

11 Associated Practitioners

Michelle Ortega , APN, CNP

Nurse Practitioner

NPI 1073531547

Advanced Practice Nurse, Certified Nurse Practitioner

Dr. Claudia Tiwet , MD

Internal Medicine

NPI 1114094646

Doctor of Medicine (M.D.)

Dr. Stacy Panozzo , DO

Internal Medicine

NPI 1316292592

Doctor of Osteopathic Medicine (D.O.)

Dr. Edward Badal , MD

Internal Medicine

NPI 1497070940

Doctor of Medicine (M.D.)

Dr. Gerald Gamalski , MD

Internal Medicine

NPI 1679617716

Doctor of Medicine (M.D.)

Dr. Regan Christopoulos , MD

Internal Medicine

NPI 1740231596

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active August 26, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location August 26, 2008

Registered at 731 S ILLINOIS ROUTE 21, SUITE 130, GURNEE, IL 600313813 (Tel: 8475663337)

📍

Updated Business Mailing Address August 26, 2008

Registered at 731 S ILLINOIS ROUTE 21, SUITE 130, GURNEE, IL 600313813 (Tel: 8475663337)

👤

Provider Name / Credentials Updated August 26, 2008

Recorded as CHAE HAN - CHANG, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 26, 2008

Internal Medicine (License #036096132 in IL)

🟢

Initial NPI Registration & Enumeration August 17, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1588777122

Entity Type:

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

Enumeration Date: August 17, 2006

Last Update: August 07, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

731 S Illinois Route 21, Suite 130

Gurnee, IL 600313813

Phone: 8475663337

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.