Active NPI 1003873720 Individual Practitioner Male Practitioner

Dr. Ithaar Derweesh , MD

Urology • Chicago, IL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Ithaar Derweesh, MD is a certified Urology practicing in Chicago, IL. With approximately 31 years of clinical experience since graduating from University Of Chicago, Pritzker School Of Medicine in 1995, Dr. Derweesh delivers high-quality medical care to the local community at 1725 W HARRISON ST STE 970.

Dr. Derweesh maintains professional affiliations with Mercy Clinic Joplin Llc, Rush University Medical Group 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, diagnostic exam of bladder and urethra using an endoscope, new 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

1725 W Harrison St Ste 970

Chicago, IL 606123828

Telephone 3125633447

Fax 3125633721

Associated Practice Facility / Clinic

🏢 Rush University Urology Facility NPI 1760794416

Medicare Profile & Education

Medical School

University Of Chicago, Pritzker School Of Medicine

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Urology in Chicago, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

31 Yrs +9.1 yrs vs City Avg

City Avg: 21.9 Yrs

State Avg: 26.7 Yrs

Regional Practice Density

205 Specialists

Practicing in Chicago, IL (663 Statewide)

Telehealth Adoption Rate

27.8% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

76.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Derweesh (31 Years) 31 Yrs

Chicago Specialty Average (21.9 Years) 21.9 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
99213 Established patient office or other outpatient visit, typically 15 minutes	198	176	$344.47	$67.37
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	125	103	$388.32	$98.88
99213 Established patient office or other outpatient visit, typically 15 minutes	77	69	$344.47	$97.37
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	56	53	$388.50	$136.86
52000 Diagnostic exam of bladder and urethra using an endoscope	55	47	$849.27	$80.76
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	40	40	$587.00	$135.68
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	36	36	$387.94	$83.35
99443 Telephone medical discussion with physician, 21-30 minutes	23	23	$339.26	$99.42
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	20	20	$735.90	$185.14
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	19	$518.00	$147.56
50543 Partial removal of kidney using an endoscope	12	12	$6499.75	$1504.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	219	185	$238.34	$68.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	109	100	$348.28	$101.17
99213 Established patient office or other outpatient visit, typically 15 minutes	64	57	$237.13	$68.35
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	55	49	$353.80	$101.04
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	53	53	$346.43	$85.25
52000 Diagnostic exam of bladder and urethra using an endoscope	48	44	$758.25	$81.58
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	38	38	$537.11	$137.65
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	26	23	$477.15	$148.62
99443 Telephone medical discussion with physician, 21-30 minutes	20	20	$296.00	$100.80
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	16	16	$660.50	$187.18
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	13	13	$473.23	$148.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	249	205	$204.00	$70.28
99213 Established patient office or other outpatient visit, typically 15 minutes	80	68	$204.00	$69.59
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	74	68	$295.00	$102.42
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	51	51	$287.00	$87.06
52000 Diagnostic exam of bladder and urethra using an endoscope	42	35	$585.00	$83.61
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	40	40	$447.00	$141.75
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	31	29	$295.00	$102.98
99443 Telephone medical discussion with physician, 21-30 minutes	26	26	$296.00	$102.91
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	21	20	$434.00	$153.31
50543 Partial removal of kidney using an endoscope	15	15	$7040.71	$1549.34
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	15	15	$575.00	$192.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	269	222	$215.71	$70.95
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	104	91	$314.88	$103.09
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	60	60	$481.67	$143.19
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	44	44	$311.00	$85.78
52000 Diagnostic exam of bladder and urethra using an endoscope	39	34	$645.51	$84.08
50543 Partial removal of kidney using an endoscope	30	30	$6817.64	$1524.16
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	28	25	$444.00	$144.26
99443 Telephone medical discussion with physician, 21-30 minutes	22	20	$268.32	$105.32
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	15	15	$603.93	$194.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	232	192	$225.00	$53.71
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	82	72	$334.00	$82.73
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	43	43	$335.00	$79.65
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	42	42	$512.00	$135.89
52000 Diagnostic exam of bladder and urethra using an endoscope	35	31	$703.00	$86.11
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	28	23	$448.00	$117.70
50543 Partial removal of kidney using an endoscope	27	27	$6971.00	$1591.62
99443 Telephone medical discussion with physician, 21-30 minutes	25	25	$206.96	$83.24
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	14	14	$637.00	$178.24
76998 Ultrasonic guidance during surgery	11	11	$305.00	$64.82
50546 Removal of kidney and partial removal of urinary duct (ureter) using an endoscope	11	11	$5255.54	$1178.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	256	215	$171.00	$53.08
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	110	96	$256.00	$81.56
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	53	53	$396.00	$132.59
52000 Diagnostic exam of bladder and urethra using an endoscope	50	43	$608.00	$85.49
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	46	45	$345.00	$115.64
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	38	38	$258.00	$77.26
50543 Partial removal of kidney using an endoscope	24	24	$6971.00	$1552.83
76998 Ultrasonic guidance during surgery	21	21	$305.00	$64.32
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	14	14	$515.00	$174.77
50546 Removal of kidney and partial removal of urinary duct (ureter) using an endoscope	13	13	$5591.00	$1273.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	260	200	$171.00	$52.44
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	107	89	$256.00	$80.12
52000 Diagnostic exam of bladder and urethra using an endoscope	43	34	$608.00	$85.45
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	40	40	$396.00	$131.90
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	38	32	$345.00	$113.82
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	27	21	$107.00	$26.01
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$258.00	$75.70

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	228	193	$188.45	$51.97
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	95	81	$282.78	$77.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	50	50	$433.80	$131.93
52000 Diagnostic exam of bladder and urethra using an endoscope	42	36	$800.50	$104.27
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	36	34	$374.75	$113.45
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	32	32	$278.13	$72.92
50543 Partial removal of kidney using an endoscope	15	15	$6971.00	$1538.50
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	12	$119.14	$25.91
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	13	13	$560.00	$172.04
76998 Ultrasonic guidance during surgery	13	13	$305.00	$63.11

Medical Specialties & State Licenses

CMS Verified: 2026-02-16

Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

State License IL 036.176621

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

3332625 (TN)

Hospital & Practice Group Affiliations

Mercy Clinic Joplin Llc

100 Mercy Way, Joplin, MO 648044524

Rush University Medical Group

1725 W Harrison St, Chicago, IL 606123828

Phone: 3125633447

Practice Associates & Co-Workers

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

19 Associated Practitioners

Dr. Sarah Armitage , MD

Urology

NPI 1043681992

Doctor of Medicine (M.D.)

Dr. Peter Reisz , MD

Urology

NPI 1083091227

Doctor of Medicine (M.D.)

Jennifer Olson

Psychiatry & Neurology - Epilepsy

NPI 1144725573

Dr. Alexandra Balabanov , DO

Psychiatry & Neurology - Epilepsy

NPI 1144857327

Doctor of Osteopathic Medicine (D.O.)

Oren Feldman-Schultz

Urology

NPI 1154053718

Dr. Ashfique Nazib , DO

Anesthesiology

NPI 1174262323

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

12 Historical Events

📍

Updated Practice Location February 16, 2026

Registered at 1725 W HARRISON ST STE 970, CHICAGO, IL 606123828 (Tel: 3125633447)

📍

Updated Business Mailing Address February 16, 2026

Registered at 1620 W HARRISON ST, CHICAGO, IL 606123801

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 16, 2026

Urology (License #036.176621 in IL)

📍

Updated Practice Location August 13, 2019

Registered at 200 W ARBOR DR, SAN DIEGO, CA 921039000 (Tel: 8009268273)

📍

Updated Business Mailing Address August 13, 2019

Registered at PO BOX 232410, SAN DIEGO, CA 921932410

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 13, 2019

Urology (License #C53383 in CA)

✅

NPI Profile Active November 01, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location November 01, 2010

Registered at 3855 HEALTH SCIENCES DRIVE, MAIL CODE 0987, LA JOLLA, CA 920930987 (Tel: 8588227874)

📍

Updated Business Mailing Address November 01, 2010

Registered at 200 W ARBOR DRIVE, MAIL CODE 8897, SAN DIEGO, CA 921038897 (Tel: 8588226187)

👤

Provider Name / Credentials Updated November 01, 2010

Recorded as ITHAAR DERWEESH, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 01, 2010

Urology (License #40071 in TN)

🟢

Initial NPI Registration & Enumeration April 27, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1003873720

Entity Type:

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

Enumeration Date: April 27, 2006

Last Update: February 16, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1620 W Harrison St

Chicago, IL 606123801

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.