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Colon & Rectal Surgery Specialists in Chicago, IL

Browse 44 Colon & Rectal Surgery providers listed in NPPES with a practice address in Chicago, Illinois.

44 Healthcare Providers

How Chicago compares with the U.S.

Chicago has 1.6 clinicians in Colon & Rectal Surgery per 100,000 residents, 2.3 times the U.S. rate of 0.7.

That is 44 active clinicians in Colon & Rectal Surgery with a practice address in Chicago, for a population of 2,711,226.

The Illinois rate is 0.8 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of clinicians in Colon & Rectal Surgery in Chicago listed in the CMS Medicare file (28 of 28) accept Medicare assignment. That is similar to the Illinois share of 100%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

36% of clinicians in Colon & Rectal Surgery in Chicago listed in the CMS Medicare file (10 of 28) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Illinois share of 32%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Colon & Rectal Surgery Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Colon & Rectal Surgery practitioners in Chicago, IL

Source: CMS PECOS
PECOS Enrolled Specialists 33 In Chicago, IL
Part B Lab & Imaging Eligible 33 Diagnostic Referrals
DME Ordering Eligible 35 Durable Medical Equipment
Home Health Agency Referrals 33 HHA Ordering Eligible
Showing 1โ€“20 of 44 providers
With recent CMS data first, then Aโ€“Z

Dr. Mohammad Ali Abbass , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
259 E Erie St Ste 1600, Chicago, IL 606113111
Phone: 3126955620
NPI Identifier 1730508052
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Dr. Ariane Abcarian , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
1950 W Polk St, Chicago, IL 606123723
Phone: 3128645207
NPI Identifier 1831364272
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Dr. Marissa Lea Anderson , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
1725 W Harrison St Ste 1138, Chicago, IL 606123845
Phone: 3129427088
NPI Identifier 1043539836
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Dr. Marco Bertucci Zoccali , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5841 S Maryland Ave # Mc6040, Chicago, IL 60637
Phone: 7737026337
NPI Identifier 1033537659
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Dr. Elisa Maria Bianchi , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1740 W Taylor St, Chicago, IL 606127232
Phone: 3129962061
NPI Identifier 1689017303
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Brian C Brajcich

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
259 E Erie St Ste 1600, Chicago, IL 606113111
Phone: 3126956868
NPI Identifier 1578925657
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Dr. Lisa Marie Cannon , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
5841 S Maryland Ave, Mc 5094, Chicago, IL 606371447
Phone: 7738343631
NPI Identifier 1841450640
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Dr. Vivek Chaudhry , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
1740 W Taylor St, Dept 3449, Chicago, IL 606127232
Phone: 3127042885
NPI Identifier 1992754766
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Jessica Chin

Colon & Rectal Surgery

Active NPI Status
836 W Wellington Ave, Chicago, IL 606575147
Phone: 7739751600
NPI Identifier 1164051165
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Dr. Jared Michael Emolo , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
900 W Nelson St, Chicago, IL 606576704
Phone: 7732967095
NPI Identifier 1073927745
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Dr. Joaquin J Estrada , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
900 W Nelson St, Chicago, IL 606576704
Phone: 7732967095
NPI Identifier 1629126651
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Gerald Gantt

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
840 S Wood St Ste 518e, Chicago, IL 60612
Phone: 3129962061
NPI Identifier 1386962207
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Dr. Amy Halverson , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
680 N Lake Shore Dr, Suite 1000, Chicago, IL 606114546
Phone: 3126959797
NPI Identifier 1568498186
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Dr. Jacqueline Lee Harrison , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
1969 W Ogden Ave, Dept. Of Surgery, Chicago, IL 606123765
Phone: 3129969336
NPI Identifier 1215952536
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Roger Hurst

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
5841 S Maryland Ave, Chicago, IL 606371443
Phone: 8888240200
NPI Identifier 1962415539
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Neil Hyman

Colon & Rectal Surgery

Active NPI Status
5841 S Maryland Ave, Chicago, IL 606371443
Phone: 8888240200
NPI Identifier 1700811981
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Dr. John Konen , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
1725 W Harrison St Ste 1138, Chicago, IL 606123845
Phone: 3129427088
NPI Identifier 1912392481
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Dr. Anders Mellgren , MD

Colon & Rectal Surgery

Active NPI Status
1801 W Taylor St, 3f Occ, Chicago, IL 606124795
Phone: 3123554300
NPI Identifier 1053320671
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Dr. Sowmya Narayanan , MD PHD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
259 E Erie St Ste 1600, Chicago, IL 606113111
Phone: 3126956868
NPI Identifier 1932698271
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Dr. Brendan David O'donnell , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
1750 W Harrison St, Chicago, IL 606123825
Phone: 3429426510
NPI Identifier 1841794021
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Frequently Asked Questions about Colon & Rectal Surgery in Chicago

How do I check a Colon & Rectal Surgery practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Illinois licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.