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Colon & Rectal Surgery Specialists in Saint Louis, MO

Browse 18 Colon & Rectal Surgery providers listed in NPPES with a practice address in Saint Louis, Missouri.

18 Healthcare Providers

How Saint Louis compares with the U.S.

Saint Louis has 6.2 clinicians in Colon & Rectal Surgery per 100,000 residents, 8.8 times the U.S. rate of 0.7.

That is 18 active clinicians in Colon & Rectal Surgery with a practice address in Saint Louis, for a population of 288,512.

The Missouri rate is 0.6 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 Saint Louis listed in the CMS Medicare file (15 of 15) accept Medicare assignment. That is similar to the Missouri 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.

53% of clinicians in Colon & Rectal Surgery in Saint Louis listed in the CMS Medicare file (8 of 15) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Missouri share of 33%.

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 Saint Louis, MO

Source: CMS PECOS
PECOS Enrolled Specialists 15 In Saint Louis, MO
Part B Lab & Imaging Eligible 16 Diagnostic Referrals
DME Ordering Eligible 16 Durable Medical Equipment
Home Health Agency Referrals 16 HHA Ordering Eligible
Showing 1โ€“18 of 18 providers
With recent CMS data first, then Aโ€“Z

Dr. Steven Mark Abbadessa , DO

Colon & Rectal Surgery

Active NPI Status
456 N New Ballas Rd Ste 154, Saint Louis, MO 631416827
Phone: 3149667570
NPI Identifier 1881668564
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Dr. William C Chapman , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1044 N Mason Rd, Div Surg Colon/rectal, Ste 310, Saint Louis, MO 631416431
Phone: 3144547177
NPI Identifier 1003297177
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Patrick Chizek

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
10012 Kennerly Rd Ste 102, Saint Louis, MO 631282197
Phone: 3145435240
NPI Identifier 1245790294
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Dr. Michelle Lee Cowan , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
1 Barnes Jewish Hospital Plz, Div Surg Colon/rectal, Saint Louis, MO 631101003
Phone: 3144547177
NPI Identifier 1104129642
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Dr. Kathryn L Galie , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
621 S New Ballas Rd Ste 7011b, Saint Louis, MO 631418275
Phone: 3142516840
NPI Identifier 1164433512
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Dr. Steven R Hunt , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4500 Forest Park Ave, Div Surg Colon/rectal, 5th Fl, Saint Louis, MO 631082114
Phone: 3144547177
NPI Identifier 1205853835
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Dr. Eric D Lederman , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
555 N. New Ballas, Suite 265, Saint Louis, MO 631412330
Phone: 3149914644
NPI Identifier 1255368973
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Dr. Lawrence G Mendelow , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
555 N New Ballas Rd, Div Surg Colon/rectal, Ste 265, Saint Louis, MO 631416825
Phone: 3149914644
NPI Identifier 1811932502
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Dr. Grace A Montenegro , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
1008 S Spring Ave, Saint Louis, MO 631102520
Phone: 3149773530
NPI Identifier 1497948087
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Dr. Matthew G Mutch , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1044 N Mason Rd, Div Surg Colon/rectal, Ste 310, Saint Louis, MO 631416431
Phone: 3144547177
NPI Identifier 1669498887
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Dr. Tatiana Ramirez Dominguez , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
621 S New Ballas Rd Ste 7011b, Saint Louis, MO 631418275
Phone: 3142516840
NPI Identifier 1043443377
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Dr. Pavan Rao , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
621 S New Ballas Rd Ste 7011b, Saint Louis, MO 631418275
Phone: 3142516840
NPI Identifier 1013363829
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Dr. Matthew Leon Silviera , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1044 N Mason Rd, Div Surg Colon/rectal, Ste 310, Saint Louis, MO 631416431
Phone: 3144547177
NPI Identifier 1386805240
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Dr. Donald Tennyson Summers , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment
1035 Bellevue Ave Ste 500, Saint Louis, MO 631171843
Phone: 3149254773
NPI Identifier 1912961962
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Dr. Alyssa Danielle Wait , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
555 N New Ballas Rd, Div Surg Colon/rectal, Ste 265, Saint Louis, MO 631416825
Phone: 3149914644
NPI Identifier 1659698058
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Dr. Paul Edward Wise , MD

Colon & Rectal Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4500 Forest Park Ave, Div Surg Colon/rectal, 5th Fl, Saint Louis, MO 631082114
Phone: 3144547177
NPI Identifier 1619076056
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Dr. Tiffany Chan , MD

Colon & Rectal Surgery

Active NPI Status
1 Barnes Jewish Hospital Plz, Saint Louis, MO 631101003
Phone: 3143625000
NPI Identifier 1588142657
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Dr. Ira Joe Kodner , MD

Colon & Rectal Surgery

Active NPI Status
1040 N Mason Rd, Ste 120, Saint Louis, MO 631416399
Phone: 3144547177
NPI Identifier 1760408983
View Full Profile

Frequently Asked Questions about Colon & Rectal Surgery in Saint Louis

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 Missouri 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.