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DR. STEPHEN STEINER M.D.
NPI 1023102951
Internal Medicine - Gastroenterology in Chicago, IL

Active since October 03, 2006PECOS EnrolledAccepts Medicare Assignment
2835 N SHEFFIELD AVE STE 303, CHICAGO, IL 60657(773) 368-3164(312) 327-4452 Get Directions Write a Review

NPPES record last updated: December 30, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Dec 30, 2021, Dec 3, 2020 (2 updates tracked since 2020).

About Dr. Stephen Steiner M.d. NPPES

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

DR. STEPHEN STEINER M.D. (NPI 1023102951) is an individual gastroenterology provider in Chicago, Illinois, licensed in Illinois (36084986) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with John H Stroger Jr Hospital, and maintains a secondary practice location in Mattoon.

NPPES Registry Identity

NPI1023102951
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. STEPHEN STEINERCredential: M.D.
Location Address2835 N SHEFFIELD AVE STE 303Chicago, IL 60657-5084
Mailing Address4646 N Marine Dr, Suite 5100Chicago, IL 60640-5759 · (773) 334-7581 · Fax (773) 334-0014
Phone(773) 368-3164
Fax(312) 327-4452
Sole ProprietorNo
Medical School CMSUniversity Of Nebraska College Of MedicineGraduated 1986
Enumeration DateOctober 3, 2006
Last NPPES UpdateDecember 30, 20212 updates tracked since enumeration
NPPES CertifiedDecember 30, 2021
✔ NPI 1023102951 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 · 36084986
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.
2835 N SHEFFIELD AVE STE 303, Chicago, IL 60657
Open in Google Maps ↗

Secondary Practice Location 1

Location 11000 Health Center Dr Ste 204Mattoon, IL 61938-4644 · Phone (217) 258-4155 · Fax (217) 258-4138

Other Identifiers 1

Medicaid036084986IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health.Insurance ›

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

Dr. Stephen Steiner M.d. 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 ID7315083557
PECOS Enrollment IDI20091001000499
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 Reassignments

4

Medicare enrollment records show Stephen Steiner reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Chicago Gastro LLC
Same address
Gastroenterology
945 W GEORGE ST STE 101
Chicago, IL 60657
  • Reassigned Medicare billing, Illinois enrollment
  • 3 clinicians in this Medicare group
NPI 1548414063 (773) 537-0020
The Board Of Trustees Of The University Of Illinois
1.0 mi
Primary Care
3656 N HALSTED ST
Chicago, IL 60613
  • Reassigned Medicare billing, Illinois enrollment
  • 2,127 clinicians in this Medicare group
NPI 1588815401 (734) 726-4697
Cook County
4.3 mi
Multi-Specialty
2020 W HARRISON ST
Chicago, IL 60612
  • Reassigned Medicare billing, Illinois enrollment
  • 1,047 clinicians in this Medicare group
NPI 1861513996 (312) 864-4665
Sarah Bush Lincoln Health Center
172 mi
Family Medicine
1000 HEALTH CENTER DR
Mattoon, IL 61938
  • Reassigned Medicare billing, Illinois enrollment
  • 652 clinicians in this Medicare group
NPI 1568581379 (217) 258-2525

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 7

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.
65 services65 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.
55 services53 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.
30 services30 patients
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152
This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.
19 services18 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
12 services12 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.
12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

John H Stroger Jr Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number140124
Location1901 W Harrison StChicago, IL 60612 · Cook County
Emergency services Birthing friendly

Advocate Illinois Masonic Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140182
Location836 West Wellington AvenueChicago, IL 60657 · Cook County
Emergency services Birthing friendly

Sarah Bush Lincoln Health Center

Acute Care Hospitals · Mattoon, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140189
Location1000 Health Center Drive P O Box 372Mattoon, IL 61938 · Coles County
Emergency services Birthing friendly

Provident Hospital Of Chicago

Acute Care Hospitals · Chicago, IL
OwnershipGovernment - Local
CMS Certification Number140300
Location500 E 51st StChicago, IL 60615 · Cook County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60657 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
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.

Other Providers at the Same Location NPPES 3

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

ANNA GRACE KLEVORN PA-C
Physician Assistant
2835 N SHEFFIELD AVE STE 303
CHICAGO, IL 60657
Cook County (773) 368-3164
LIBBY POLLACK PA-C
Physician Assistant
2835 N SHEFFIELD AVE STE 303
CHICAGO, IL 60657
Cook County (773) 368-3164
PAIGE ALLISON SAELENS PA-C
Physician Assistant
2835 N SHEFFIELD AVE STE 303
CHICAGO, IL 60657
Cook County (773) 368-3164

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 Stephen Steiner's NPI number?

The NPI number for Stephen Steiner is 1023102951. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Stephen Steiner located?

Stephen Steiner practices at 2835 N Sheffield Ave Ste 303, Chicago, IL 60657. The listed phone number is (773) 368-3164.

What is Stephen Steiner's specialty?

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

Is Stephen Steiner enrolled in Medicare?

Yes. Stephen Steiner 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 organizations bill Medicare for Stephen Steiner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Steiner reassigns Medicare benefits to 4 organizations: Chicago Gastro LLC (Chicago, IL), The Board Of Trustees Of The University Of Illinois (Chicago, IL), Cook County (Chicago, IL) and Sarah Bush Lincoln Health Center (Mattoon, IL). Each 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 Stephen Steiner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephen Steiner accept?

Health plans from Ambetter Health list Stephen Steiner as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Stephen Steiner affiliated with any hospitals?

According to CMS data, Stephen Steiner is affiliated with John H Stroger Jr Hospital, Advocate Illinois Masonic Medical Center, Sarah Bush Lincoln Health Center and Provident Hospital Of Chicago.

When was this NPI record last updated?

The NPPES record for Stephen Steiner was last updated on December 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.