JOEL E RETSKY MD
NPI 1568420057
Internal Medicine - Gastroenterology in Highland Park, IL

Q: What is Joel Retsky's NPI number?

The NPI number for Joel Retsky is 1568420057. It was assigned to this individual provider in the NPPES registry on May 3, 2006.

Q: What is Joel Retsky's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Joel Retsky was last updated on October 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 03, 2006PECOS EnrolledAccepts Medicare Assignment

93.08/100

CMS Quality Rating

1777 GREEN BAY RD, SUITE 201, HIGHLAND PARK, IL 60035(847) 433-3460(847) 433-4062 Get Directions Write a Review

NPPES record last updated: October 13, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Joel E Retsky Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOEL E RETSKY MD (NPI 1568420057) is an individual gastroenterology provider in Highland Park, Illinois, licensed in Illinois (03-6084395) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of Northwestern University Feinberg Medical School (1989).

NPPES Registry Identity

NPI1568420057

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameJOEL E RETSKYCredential: MD

Location Address1777 GREEN BAY RD, SUITE 201Highland Park, IL 60035-3297

Mailing Address1777 Green Bay Rd, Suite 201Highland Park, IL 60035-3297 · (847) 433-3460 · Fax (847) 433-4062

Phone(847) 433-3460

Fax(847) 433-4062

Sole ProprietorNo

Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 1989

Enumeration DateMay 3, 2006

Last NPPES UpdateOctober 13, 2020

NPPES CertifiedOctober 13, 2020

✔ NPI 1568420057 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in IL · 03-6084395

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

1777 GREEN BAY RD, Highland Park, IL 60035

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Joel E Retsky Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4688668122

PECOS Enrollment IDI20101108001040

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Joel Retsky reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Endeavor Health Medical Group

10 mi

Anesthesiology

2650 RIDGE AVE, ANESTHESIOLOGY ROOM 3905
Evanston, IL 60201

Reassigned Medicare billing, Illinois enrollment
4,841 clinicians in this Medicare group

NPI 1265695944 (847) 570-2760

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

488 services485 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

476 services472 patients

Injection beneath lining of large bowel using a flexible endoscope 45381

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

260 services258 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

136 services135 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

127 services119 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

106 services104 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

71 services42 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

59 services44 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

39 services39 patients

Injection of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43236

This procedure involves a flexible tube, called an endoscope, which is passed through your mouth to examine your esophagus, stomach, and upper small bowel. A special needle is used to inject medication or other substances directly into these areas.

18 services17 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare 43251

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

18 services17 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

11 services11 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number140010

Location2650 Ridge AveEvanston, IL 60201 · Cook County

Emergency services Birthing friendly

Swedish Hospital

Acute Care Hospitals · Chicago, IL

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140114

Location5145 N California AveChicago, IL 60625 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60035 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.08/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

80.79

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. MARGARET ANN ZIELINSKI CNP

Nurse Practitioner

1777 GREEN BAY RD, SUITE 201
HIGHLAND PARK, IL 60035

Lake County (847) 433-3460

DR. GALI R OREN-AMIT M.D.

Internal Medicine

1777 GREEN BAY RD, SUITE 201
HIGHLAND PARK, IL 60035

Lake County (847) 433-3460

DR. GARY KAUFMAN MD

Internal Medicine

1777 GREEN BAY RD, SUITE 201
HIGHLAND PARK, IL 60035

Lake County (847) 433-3460

DR. ROBERT BLOCK MD

Internal Medicine

1777 GREEN BAY RD, SUITE 201
HIGHLAND PARK, IL 60035

Lake County (847) 433-3460

DR. JOHN SULTAN

Internal Medicine

1777 GREEN BAY RD, SUITE 201
HIGHLAND PARK, IL 60035

Lake County (847) 433-3460

DR. KENNETH BREGER MD

Internal Medicine

1777 GREEN BAY RD, SUITE 201
HIGHLAND PARK, IL 60035

Lake County (847) 433-3460

DR. LOREN A ADELMAN DPM

Podiatrist

1777 GREEN BAY RD, STE 201
HIGHLAND PARK, IL 60035

Lake County (847) 433-3460

RAVINIA ASSOCIATES IN INTERNAL MEDICINE, LTD

Internal Medicine (Gastroenterology)

1777 GREEN BAY RD, SUITE 201
HIGHLAND PARK, IL 60035

Lake County (847) 433-3460

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joel Retsky's NPI number?

The NPI number for Joel Retsky is 1568420057. It was assigned to this individual provider in the NPPES registry on May 3, 2006.

Where is Joel Retsky located?

Joel Retsky practices at 1777 Green Bay Rd Suite 201, Highland Park, IL 60035. The listed phone number is (847) 433-3460.

What is Joel Retsky's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Joel Retsky enrolled in Medicare?

Yes. Joel Retsky is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Joel Retsky's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joel Retsky reassigns Medicare benefits to Endeavor Health Medical Group (Evanston, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joel Retsky's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Joel Retsky affiliated with any hospitals?

According to CMS data, Joel Retsky is affiliated with Northshore University Healthsystem - Evanston Hospital and Swedish Hospital.

When was this NPI record last updated?

The NPPES record for Joel Retsky was last updated on October 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.