Colorectal Surgeons in Missouri
Data updated monthly · Last refresh October 2026
35 Colon & Rectal Surgery providers practice in Missouri, including 10 (29%) offering telehealth. The largest concentration is in Saint Louis. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
35providers
10telehealth
Saint Louistop city
Colon & Rectal Surgery by city in Missouri
Choose a city to see providers there.
Where Colorectal Surgeons in Missouri practice
From CMS Medicare enrollment records covering 27 of the 35 providers listed here (77%). Providers who do not bill Medicare are not included in these figures.
7%solo or small practice (under 10 clinicians)
7%mid-size group (10 to 99)
85%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Colorectal Surgeons | All clinicians in group | Main city |
| Washington University | 8 | 2,968 | Saint Louis |
| Lester E Cox Medical Centers | 3 | 336 | Springfield |
| Lester E Cox Medical Centers | 3 | 243 | Springfield |
| Mercy Clinic Surgical Specialists LLC | 3 | 180 | Saint Louis |
| Mercy Clinic Springfield Communities | 2 | 1,121 | Branson |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Colorectal Surgeons affiliated |
| Missouri Baptist Medical Center | Saint Louis | Nonprofit | 5 of 5 | 8 |
| Barnes Jewish Hospital | Saint Louis | Nonprofit | 4 of 5 | 8 |
| Barnes-Jewish West County Hospital | Creve Coeur | Nonprofit | 5 of 5 | 8 |
| Mercy Hospital St Louis | Saint Louis | Nonprofit | 4 of 5 | 4 |
| Mercy Hospital South | Saint Louis | Nonprofit | 2 of 5 | 3 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Colon & Rectal Surgery providers in Missouri
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Robert West, D.O.Chesterfield, MO · $128 in drug and device payments (2025) ·
(314) 720-0050 Dr. Todd Arends, M.D.Chesterfield, MO · No drug or device payments recorded (2025) ·
(314) 434-1211 Dr. Daniel Peyser, M.D.Columbia, MO · $131 in drug and device payments (2025) ·
(573) 882-2100 Dr. Erik Grossmann, M.D.Columbia, MO · $77 in drug and device payments (2025) ·
(573) 882-2100 Dr. Reggie Vaden, MDColumbia, MO · No drug or device payments recorded (2025) ·
(573) 815-8145 Dr. Zihao Wu, M.D.Columbia, MO · $28 in drug and device payments (2025) ·
(573) 884-4854 Dr. Hannah-ngoc Ha, M.D.Creve Coeur, MO · No drug or device payments recorded (2025) ·
(314) 834-2888 Dr. Rafael Figueroa Dugarte, M.D.Farmington, MO · $9,797 in drug and device payments (2025) ·
(573) 756-6751 Dr. Benjamin Kulow, M.D.Kansas City, MO · $188 in drug and device payments (2025) · Telehealth ·
(816) 472-9595 Dr. Robert Amajoyi, M.D.Kansas City, MO · $41,710 in drug and device payments (2025) ·
(169) 322-8368 Dr. Alyssa Wait, MDSaint Louis, MO · $21 in drug and device payments (2025) · Telehealth ·
(314) 991-4644 Dr. Donald Summers, MDSaint Louis, MO · $245 in drug and device payments (2025) ·
(314) 925-4773 Dr. Eric Lederman, M.D.Saint Louis, MO · No drug or device payments recorded (2025) ·
(314) 991-4644 Dr. Grace Montenegro, M.D.Saint Louis, MO · $211 in drug and device payments (2025) ·
(314) 977-3530 Dr. Ira Kodner, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 454-7177 Dr. Kathryn Galie, MDSaint Louis, MO · $670 in drug and device payments (2025) ·
(314) 251-6840 Dr. Lawrence Mendelow, MDSaint Louis, MO · $240 in drug and device payments (2025) ·
(314) 991-4644 Dr. Matthew Mutch, MDSaint Louis, MO · $178 in drug and device payments (2025) · Telehealth ·
(314) 454-7177 Dr. Matthew Silviera, MDSaint Louis, MO · $169 in drug and device payments (2025) · Telehealth ·
(314) 454-7177 Dr. Michelle Cowan, MDSaint Louis, MO · $178 in drug and device payments (2025) ·
(314) 454-7177 Dr. Patrick ChizekSaint Louis, MO · $7,057 in drug and device payments (2025) · Telehealth ·
(314) 543-5240 Dr. Paul Wise, MDSaint Louis, MO · $4,937 in drug and device payments (2025) · Telehealth ·
(314) 454-7177 Dr. Pavan Rao, M.D.Saint Louis, MO · $130 in drug and device payments (2025) ·
(314) 251-6840 Dr. Steven Abbadessa, D.O.Saint Louis, MO · No drug or device payments recorded (2025) ·
(314) 966-7570 Dr. Steven Hunt, MDSaint Louis, MO · $1,228 in drug and device payments (2025) · Telehealth ·
(314) 454-7177 Dr. Tatiana Ramirez Dominguez, MDSaint Louis, MO · $8,935 in drug and device payments (2025) · Telehealth ·
(314) 251-6840 Dr. Tiffany Chan, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 362-5000 Dr. William Chapman, MDSaint Louis, MO · $178 in drug and device payments (2025) · Telehealth ·
(314) 454-7177 Dr. Brian Swenson, M.D.Springfield, MO · No drug or device payments recorded (2025) · Telehealth ·
(417) 820-3800 Dr. Jennifer Lu, D.O.Springfield, MO · $213 in drug and device payments (2025) ·
(417) 820-3800 Dr. John Trombold, M.D.Springfield, MO · $24 in drug and device payments (2025) ·
(417) 875-3000 Dr. Jose Dominguez, MDSpringfield, MO · $150 in drug and device payments (2025) ·
(417) 875-3276 Dr. Megan Nicolas, MDSpringfield, MO · $245 in drug and device payments (2025) ·
(417) 875-3000 Dr. David Schuval, MDSt. Louis, MO · No drug or device payments recorded (2025) ·
(314) 849-1811 Dr. Ralph Silverman, MDSt. Louis, MO · $3,034 in drug and device payments (2025) ·
(314) 849-1811 Common questions
How many Colon & Rectal Surgery providers are in Missouri?There are 35 Colon & Rectal Surgery providers with active NPI records practicing in Missouri, according to federal NPPES data refreshed monthly.
Do Colon & Rectal Surgery providers in Missouri offer telehealth?Yes. 10 of the 35 Colon & Rectal Surgery providers in Missouri (about 29%) report offering telehealth services in CMS data.
Which cities in Missouri have the most Colon & Rectal Surgery providers?Saint Louis (18), Springfield (5), Columbia (4) have the highest concentration of Colon & Rectal Surgery providers in Missouri.
How many Colon & Rectal Surgery providers in Missouri received drug or device company payments?26 of 35 Colon & Rectal Surgery providers in Missouri (74%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Colorectal Surgeons in Missouri work in independent practices or large health systems?Among 27 Colorectal Surgeons in Missouri enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 7% through a mid-size group of 10 to 99, and 85% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Colorectal Surgeons in Missouri work at?According to CMS facility affiliation records, the Missouri hospitals where the most Colorectal Surgeons hold privileges are Missouri Baptist Medical Center in Saint Louis; Barnes Jewish Hospital in Saint Louis; Barnes-Jewish West County Hospital in Creve Coeur.
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