Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Patrick Cunningham

Internal Medicine - Nephrology โ€ข Chicago, IL

Active NPI 1518033315 Individual Practitioner Male Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

5841 S Maryland Ave
Chicago, IL 606371443

Call 8888240200 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

5841 S Maryland Ave

Chicago, IL 606371443

Telephone 8888240200
Organization at the Same NPPES Address or Phone
University Of Chicago Facility NPI 1821048786

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 2 distinct group names: The University Of Chicago Medical Center; University Of Chicago. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Tufts University School Of Medicine

Graduation Year

1994

Medicare patients

276 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $75,788 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $60,115 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

962 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$39,133 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $1,907.50 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

32 years (graduated 1994)

CMS Doctors and Clinicians data list 1994 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Patrick Cunningham has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Patrick Cunningham as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Chicago and Illinois

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Internal Medicine - Nephrology in Chicago, IL (2024, 127 clinicians with data). Median for this group: 649. Middle half: 278 to 1,076.

Fewer Medicare Part B services than 75% of clinicians listed under Internal Medicine - Nephrology in Illinois (2024, 421 clinicians with data). Median for this group: 1,458. Middle half: 670 to 2,447.

Medicare-allowed amount

Close to the middle for clinicians listed under Internal Medicine - Nephrology in Chicago, IL (2024, 127 clinicians with data). Median for this group: $72,982. Middle half: $29,424 to $148,613.

A lower Medicare-allowed amount than 70% of clinicians listed under Internal Medicine - Nephrology in Illinois (2024, 421 clinicians with data). Median for this group: $180,808. Middle half: $72,982 to $273,354.

Paid by Medicare

Close to the middle for clinicians listed under Internal Medicine - Nephrology in Chicago, IL (2024, 127 clinicians with data). Median for this group: $57,958. Middle half: $23,128 to $115,684.

A lower Medicare payment amount than 70% of clinicians listed under Internal Medicine - Nephrology in Illinois (2024, 421 clinicians with data). Median for this group: $139,769. Middle half: $57,744 to $208,126.

Medicare Part D prescriptions

Close to the middle for clinicians listed under Internal Medicine - Nephrology in Chicago, IL (2024, 134 clinicians with data). Median for this group: 314. Middle half: 84 to 621.

Fewer Part D prescriptions than 60% of clinicians listed under Internal Medicine - Nephrology in Illinois (2024, 433 clinicians with data). Median for this group: 642. Middle half: 251 to 1,390.

Part D drug cost

Close to the middle for clinicians listed under Internal Medicine - Nephrology in Chicago, IL (2024, 134 clinicians with data). Median for this group: $41,472. Middle half: $5,830 to $115,559.

A lower Part D drug cost than 65% of clinicians listed under Internal Medicine - Nephrology in Illinois (2024, 433 clinicians with data). Median for this group: $95,131. Middle half: $28,068 to $215,537.

195 active clinicians are listed under Internal Medicine - Nephrology with a practice address in Chicago, IL (573 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Chicago

26.2% of these 195 clinicians have the CMS telehealth indicator.

66.7% of these 195 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $1,907.50.

Manufacturer Payment Nature Product Type Amount ($)
Novo Nordisk Inc
Consulting Fee
Cash or cash equivalent
โ€” General $1,907.50

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2017โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
208 100 $427.06 $130.21
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
130 85 $103.00 $17.99
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
102 69 $365.00 $106.49
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
77 75 $1048.88 $188.64
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
52 41 $576.65 $159.12
50200 Needle biopsy of kidney
43 39 $2786.60 $139.68
90935 Hemodialysis procedure with physician evaluation
40 29 $541.80 $77.13
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
18 18 $862.89 $200.69

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Prednisone Prednisone 60 4,590 $793.81 22
Amlodipine Besylate Amlodipine Besylate 33 2,370 $121.75 14
Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim 33 2,460 $306.27 11
Jardiance Empagliflozin 32 1,399 $25,057.40 โ€”
Carvedilol Carvedilol 31 1,950 $199.99 โ€”
Losartan Potassium Losartan Potassium 25 1,500 $184.50 โ€”
Olmesartan Medoxomil Olmesartan Medoxomil 23 1,590 $296.85 โ€”
Furosemide Furosemide 20 1,678 $153.46 โ€”
Atorvastatin Calcium Atorvastatin Calcium 17 1,530 $104.63 โ€”
Famotidine Famotidine 17 1,320 $192.64 โ€”
Mycophenolate Mofetil Mycophenolate Mofetil 17 570 $1,099.42 โ€”
Tacrolimus Tacrolimus 16 900 $1,241.60 โ€”
Tamsulosin Hcl Tamsulosin Hcl 15 1,230 $165.89 โ€”
Irbesartan Irbesartan 15 1,140 $290.81 โ€”
Metolazone Metolazone 15 750 $546.46 โ€”
Chlorthalidone Chlorthalidone 14 1,020 $148.00 โ€”
Hydrochlorothiazide Hydrochlorothiazide 12 735 $76.37 โ€”
Nifedipine Er Nifedipine 12 720 $322.73 โ€”
Eliquis Apixaban 11 390 $7,485.11 โ€”
Diltiazem 24hr Er (Cd) Diltiazem Hcl 11 960 $345.49 โ€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Internal Medicine - Nephrology Primary Specialty

NUCC Taxonomy Code: 207RN0300X

License # reported to NPPES IL 036094953

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NEPHROLOGY

Medicare Enrollment ID

I20050607001249

Enrollment State Jurisdiction

IL

PECOS Control ID

6204879588

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

University Of Chicago

5841 S Maryland Ave, Chicago, IL 606371443

Phone: 8888240200

The University Of Chicago Medical Center

5841 S Maryland Ave, Chicago, IL 606371443

Phone: 7737021000

University Of Chicago

1101 S Canal St, Chicago, IL 606074944

Phone: 8773365667

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

37 listed
Calvin Adatsi

Nurse Practitioner - Family

NPI 1033767082
Ayman Al-Hendy

Obstetrics & Gynecology

NPI 1023184637
Stephen Bennett

Family Medicine

NPI 1013978766
Paul Chang

Radiology - Diagnostic Radiology

NPI 1023080983
Michael Davidson

Internal Medicine - Cardiovascular Disease

NPI 1023033321
Alexandra Dumitrescu

Internal Medicine

NPI 1003078049

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

10 Historical Events
๐Ÿ“
Updated Practice Location March 08, 2022

Registered at 5841 S MARYLAND AVE, CHICAGO, IL 606371443 (Tel: 8888240200)

๐Ÿ“
Updated Business Mailing Address March 08, 2022

Registered at 150 HARVESTER DR, SUITE 300, BURR RIDGE, IL 605275919

๐Ÿ‘ค
Provider Name / Credentials Updated March 08, 2022

Recorded as PATRICK CUNNINGHAM

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 08, 2022

Internal Medicine (license number reported to NPPES: IL 036094953)

โœ…
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) July 08, 2007

Registered at UNIVERSITY OF CHICAGO, SECTION OF NEPHROLOGY, MC 5100, 5841 SOUTH MARYLAND AVE., CHICAGO, IL 60637 (Tel: 7737029908)

๐Ÿ“
Business Mailing Address (Initial Record) July 08, 2007

Registered at 11761 WINDING TRAILS DR, WILLOW SPRINGS, IL 604801619 (Tel: 7737029908)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) July 08, 2007

Recorded as PATRICK CUNNINGHAM, M.D.

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine

๐ŸŸข
Initial NPI Registration & Enumeration November 27, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1518033315
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: November 27, 2006
Last Update: October 24, 2022
Sole Proprietor: No

Other Internal Medicine - Nephrology Specialists in Chicago

All Internal Medicine - Nephrology Specialists in Chicago

Mailing Address

150 Harvester Dr, Suite 300

Burr Ridge, IL 605275919

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.