Active NPI 1770740144 Individual Practitioner Male Practitioner

Dr. Patrick Elie Hallak , MD

Internal Medicine - Nephrology • Chicago, IL

Professional Overview & Biography Verified Profile Summary

Dr. Patrick Hallak, MD is a registered healthcare professional specializing in Internal Medicine - Nephrology in Chicago, IL. Practice services are available at 251 E HURON ST under active NPI credentials.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, initial hospital care with moderate level of medical decision making, if using time, at least, 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

251 E Huron St

Chicago, IL 606112908

Telephone 3129266632

Associated Practice Facility / Clinic

🏢 Northwestern Radiology Oncology Assoc Facility NPI 1831164052

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine - Nephrology in Chicago, IL

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 25.5 Yrs

State Avg: 26.3 Yrs

Regional Practice Density

203 Specialists

Practicing in Chicago, IL (598 Statewide)

Telehealth Adoption Rate

25.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

57.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

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	128	38	$287.00	$132.67
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	30	30	$486.00	$195.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	251	143	$192.79	$101.48
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	233	67	$265.09	$132.37
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	49	47	$486.00	$187.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	17	$316.00	$146.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	104	77	$190.00	$104.92
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	69	32	$250.00	$114.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	54	43	$270.41	$145.97
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	31	27	$353.00	$191.29
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	28	25	$486.00	$221.06

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	48	47	$135.00	$123.51
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	45	24	$181.00	$99.04
90962 Dialysis services, 1 physician visit per month (20 years or older)	24	17	$340.00	$190.40
99221 Initial hospital inpatient care per day, typically 30 minutes	23	23	$170.00	$95.87
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	21	14	$455.00	$287.86
99423 Online digital evaluation and management service for an established patient for up to 7 days, total time 21 or more minutes	21	21	$72.00	$45.03
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	21	14	$126.00	$68.87
90966 Home dialysis services per month, patient 20 years of age or older	19	12	$454.00	$289.64

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	141	70	$181.00	$99.80
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	132	89	$135.00	$104.26
90962 Dialysis services, 1 physician visit per month (20 years or older)	92	30	$340.00	$180.07
99221 Initial hospital inpatient care per day, typically 30 minutes	51	44	$170.00	$96.60
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	50	20	$455.00	$234.06
90966 Home dialysis services per month, patient 20 years of age or older	49	11	$454.00	$233.47
99423 Online digital evaluation and management service for an established patient for up to 7 days, total time 21 or more minutes	42	38	$72.00	$47.34
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	28	22	$126.00	$68.71
90937 Hemodialysis procedure requiring repeated evaluation	27	20	$169.00	$103.34
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$208.00	$157.73
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	22	22	$261.00	$199.18
99231 Follow-up hospital inpatient care per day, typically 15 minutes	22	14	$71.00	$38.27

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	215	82	$181.00	$100.04
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	182	116	$135.00	$103.66
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	94	29	$455.00	$230.51
90962 Dialysis services, 1 physician visit per month (20 years or older)	78	34	$340.00	$176.16
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	61	61	$261.00	$196.53
99221 Initial hospital inpatient care per day, typically 30 minutes	52	48	$170.00	$96.50
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	40	38	$234.00	$131.22
90966 Home dialysis services per month, patient 20 years of age or older	39	12	$454.00	$230.04
90937 Hemodialysis procedure requiring repeated evaluation	38	20	$169.00	$101.40
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	28	19	$126.00	$69.92
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$208.00	$156.18

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	147	50	$181.41	$99.12
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	87	48	$133.08	$69.53
90962 Dialysis services, 1 physician visit per month (20 years or older)	54	25	$340.00	$175.20
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	50	43	$135.00	$101.35
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	48	23	$455.00	$226.86
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	41	41	$208.00	$154.31
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	23	23	$261.00	$194.00
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	17	$239.47	$129.77
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	17	17	$355.06	$192.94

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	264	134	$139.77	$65.62
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	212	198	$160.00	$95.35
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	196	137	$196.07	$94.77
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	99	99	$387.32	$186.26
99239 Hospital discharge day management, more than 30 minutes	56	56	$206.00	$99.01
99231 Follow-up hospital inpatient care per day, typically 15 minutes	37	20	$76.00	$35.70
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$250.00	$146.67
99238 Hospital discharge day management, 30 minutes or less	21	21	$140.00	$66.76
99225 Subsequent observation care, typically 25 minutes per day	20	17	$141.00	$67.51
99226 Subsequent observation care, typically 35 minutes per day	18	16	$203.00	$97.40
99217 Hospital observation care on day of discharge	17	17	$140.00	$67.04
76770 Complete ultrasound scan behind abdominal cavity	15	15	$130.00	$61.92
99220 Hospital observation care, typically 70 minutes	14	14	$359.00	$172.35

Medical Specialties & State Licenses

CMS Verified: 2021-06-18

Internal Medicine - Nephrology Primary Specialty

NUCC Taxonomy Code: 207RN0300X

State License IL 036123751

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Secondary Practice Locations

1401 Harrodsburg Rd, C335

Lexington, KY 405043751

Phone: 8592765355

1401 Harrodsburg Rd, C335

Lexington, KY 405043751

Phone: 8592765355

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Mark Wang , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1003043167

Doctor of Medicine (M.D.)

Marley Doyle , M, D

Psychiatry & Neurology - Psychiatry

NPI 1003137670

Dr. Cassidy Schwab , MD

Anesthesiology

NPI 1003195199

Doctor of Medicine (M.D.)

Seong Park

Internal Medicine

NPI 1003429366

Dr. Emma Greever , MD

Emergency Medicine

NPI 1003493040

Doctor of Medicine (M.D.)

Dr. Nicole Trupiano , MD

Dermatology

NPI 1003518432

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

20 Historical Events

📍

Updated Practice Location June 18, 2021

Registered at 251 E HURON ST, CHICAGO, IL 606112908 (Tel: 3129266632)

📍

Updated Business Mailing Address June 18, 2021

Registered at 251 E HURON ST, CHICAGO, IL 606112908 (Tel: 3178375570)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 18, 2021

Internal Medicine (License #036123751 in IL)

📍

Updated Practice Location March 17, 2018

Registered at 100 HOSPITAL LN STE 145, DANVILLE, IN 461222000 (Tel: 3177182460)

📍

Updated Business Mailing Address March 17, 2018

Registered at 1100 SOUTHFIELD DR STE 1370, PLAINFIELD, IN 461684300 (Tel: 3178375570)

📍

Updated Practice Location March 05, 2018

Registered at 100 HOSPITAL LN STE 145, DANVILLE, IN 461222000 (Tel: 3177182460)

📍

Updated Business Mailing Address March 05, 2018

Registered at 1100 SOUTHFIELD DR STE 1370, PLAINFIELD, IN 461684300 (Tel: 3178375570)

✅

NPI Profile Active May 31, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location May 31, 2017

Registered at 1401 HARRODSBURG RD, C335, LEXINGTON, KY 405043751 (Tel: 8592765355)

📍

Updated Business Mailing Address May 31, 2017

Registered at 1401 HARRODSBURG RD, C335, LEXINGTON, KY 405043751 (Tel: 8592765355)

👤

Provider Name / Credentials Updated May 31, 2017

Recorded as PATRICK HALLAK, M.D

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 31, 2017

Internal Medicine (License #44107 in KY)

📍

Updated Practice Location February 07, 2017

Registered at 1401 HARRODSBURG RD, C335, LEXINGTON, KY 405043751 (Tel: 8592765355)

📍

Updated Business Mailing Address February 07, 2017

Registered at 1401 HARRODSBURG RD, C335, LEXINGTON, KY 405043751 (Tel: 8592765355)

✅

NPI Profile Active June 11, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location June 11, 2014

Registered at 1740 NICHOLASVILLE RD, LEXINGTON, KY 405031431 (Tel: 8592606348)

📍

Updated Business Mailing Address June 11, 2014

Registered at PO BOX 910439, LEXINGTON, KY 405910439 (Tel: 8592606348)

👤

Provider Name / Credentials Updated June 11, 2014

Recorded as PATRICK HALLAK, M.D

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 11, 2014

Internal Medicine (License #44107 in KY)

🟢

Initial NPI Registration & Enumeration May 21, 2008

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1770740144

Entity Type:

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

Enumeration Date: May 21, 2008

Last Update: June 18, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

251 E Huron St

Chicago, IL 606112908

Phone: 3178375570

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.