Patrick Chizek
- Part D claims, 2024
- 58
- Hospital affiliations
- 2
- Industry payments
- $7,690
- Medical groups
- 2
- State license
- 1
- Practice address
- 621 S New Ballas Rd, Saint Louis, MO 63141
- Practice phone
- Call (314) 251-3880
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy Clinic Gastroenterology
Saint Louis, Missouri
Find Patrick Chizek's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Patrick Chizek is a colorectal surgeon in Saint Louis, Missouri
Patrick Chizek practices at Mercy Clinic Gastroenterology in Saint Louis, Missouri.
Patrick Chizek's NPI, 1245790294, was assigned on March 24, 2019. Patrick Chizek graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2019. Patrick Chizek holds Virginia license 0116038973.
- NPI
- 1245790294NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264767862
- NPI enumeration date
- March 24, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (314) 251-3880
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Patrick Chizek practices at Mercy Clinic Gastroenterology in Saint Louis, Missouri
Patrick Chizek's primary practice is Mercy Clinic Gastroenterology, at 621 S New Ballas Rd, Saint Louis, MO 63141 in Saint Louis County. The practice phone is (314) 251-3880.
- Mercy Clinic Gastroenterology621 S New Ballas Rd, Saint Louis, MO 63141 · Saint Louis CountyPhone(314) 251-3880
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Patrick Chizek is affiliated with 5 sites of care and 2 medical groups
Patrick Chizek's primary practice is Mercy Clinic Gastroenterology in Saint Louis, Missouri. Patrick Chizek is also affiliated with Mercy Hospital St. Louis. The medical group on file is Mercy Clinic Gastroenterology. Dmand AI also links Patrick Chizek to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Patrick Chizek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Patrick Chizek practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Clinic Gastroenterology | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Patrick Chizek is one of 35 colorectal surgeons in Missouri
Colon and rectal surgery is Patrick Chizek's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Patrick Chizek is licensed in Virginia.
Specialties and state licenses
- Colon and rectal surgery, VirginiaPrimary
Colorectal surgeons near Patrick Chizek
Counts of colorectal surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Patrick Chizek's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Patrick Chizek's median patient age at 63, with 52% women.
Patrick Chizek's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women52%
- Men46%
Source: Dmand AI Patient Panel Data
Patrick Chizek wrote 58 Medicare Part D claims in 2024
In 2024, Patrick Chizek wrote 58 Medicare Part D claims for 38 patients. 100% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $61 in total drug cost. In 2023, CMS named 56 claims across 1 drug.
Patrick Chizek's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Patrick Chizek's Part D claims, 2024
- Opioids55%32 of 58 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 562024: 1966%
Drugs named by CMS: 1 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Patrick Chizek offers telehealth to Medicare patients
Patrick Chizek accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Patrick Chizek as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Patrick Chizek received $7,690 in industry payments from 2023 to 2025
CMS Open Payments shows 31 general payments to Patrick Chizek from 11 drug and device companies from 2023 to 2025. Education make up the largest share, 75% of the total. Intuitive Surgical, Inc. paid the most, $5,638.
General payments to Patrick Chizek by program year, 2023 to 2025
General payments to Patrick Chizek by kind, 2023 to 2025
- Education$5,74175%
- Travel and lodging$1,12815%
- Food and beverage$82011%
Companies that paid Patrick Chizek the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Patrick Chizek graduated from Des Moines University of Osteopathic Medicine and Health Sciences
Patrick Chizek graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Patrick Chizek's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Patrick Chizek
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Patrick Chizek's NPI number?
Patrick Chizek's NPI number is 1245790294. It was assigned on March 24, 2019, and it is active in the NPI Registry.
What does Patrick Chizek specialize in?
Patrick Chizek is a colorectal surgeon in Saint Louis, Missouri. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Patrick Chizek practice?
Patrick Chizek practices at 621 S New Ballas Rd, Saint Louis, MO 63141. Patrick Chizek's primary practice is Mercy Clinic Gastroenterology in Saint Louis, Missouri. Dmand AI also links Patrick Chizek to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Patrick Chizek's office phone number?
The practice phone on file for Patrick Chizek is (314) 251-3880.
What is Patrick Chizek's medical license number?
Patrick Chizek holds Virginia license 0116038973.
Which hospitals is Patrick Chizek affiliated with?
Patrick Chizek is affiliated with Mercy Hospital St. Louis. Dmand AI links Patrick Chizek to 1 more hospital.
What medical group is Patrick Chizek part of?
Patrick Chizek is linked to Mercy Clinic Gastroenterology. Dmand AI links Patrick Chizek to 1 more medical group.
Does Patrick Chizek accept Medicare?
Yes. CMS lists Patrick Chizek as accepting Medicare assignment.
Does Patrick Chizek offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Patrick Chizek as offering telehealth services.
Where did Patrick Chizek go to medical school?
Patrick Chizek graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2019.
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What drugs does Patrick Chizek prescribe most?
In 2024 Medicare Part D data, Patrick Chizek's most prescribed drugs by claims were Oxycodone HCl.
Has Patrick Chizek received payments from drug or device companies?
CMS Open Payments shows $7,690 in general payments to Patrick Chizek from 11 companies from 2023 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Patrick Chizek been practicing?
Patrick Chizek graduated from medical school in 2019, 7 years ago.
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