Patrick Chizek, - Medicare Colorectal Surgery (proctology) in Saint Louis, MO

  1. Home
Patrick Chizek, is a medicare enrolled "Colon & Rectal Surgery" physician in Saint Louis, Missouri. He went to Des Moines University Of Osteopathic Medicine And Health Sciences and graduated in 2019 and has 7 years of diverse experience with area of expertise as Colorectal Surgery (proctology). He is a member of the group practice Mercy Clinic Gastroenterology Llc and his current practice location is 10012 Kennerly Rd Ste 102, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 543-5240.

Patrick Chizek is licensed to practice in Missouri (license number 2025032761) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1245790294.

Contact Information

Patrick Chizek,
10012 Kennerly Rd Ste 102,
Saint Louis, MO 63128-2197
(314) 543-5240
(314) 543-5239

Map and Direction




Physician's Profile

Full NamePatrick Chizek
GenderMale
SpecialityColorectal Surgery (proctology)
Experience7 Years
Location10012 Kennerly Rd Ste 102, Saint Louis, Missouri
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Patrick Chizek attended and graduated from Des Moines University Of Osteopathic Medicine And Health Sciences in 2019
  NPI Data:
  • NPI Number: 1245790294
  • Provider Enumeration Date: 03/24/2019
  • Last Update Date: 09/12/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2264767862
  • Enrollment ID: I20250920000524

Medical Identifiers

Medical identifiers for Patrick Chizek such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245790294NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208C00000XColon & Rectal Surgery 2025032761 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Hospital SouthSaint louis, MOHospital
Mercy Hospital St LouisSaint louis, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Clinic Gastroenterology Llc862812179566

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Patrick Chizek allows following entities to bill medicare on his behalf.
Entity NameMercy Clinic Gastroenterology LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528295334
PECOS PAC ID: 8628121795
Enrollment ID: O20090806000762
Entity NameMercy Clinic Surgical Specialists LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043530538
PECOS PAC ID: 1153455076
Enrollment ID: O20100813001038

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Patrick Chizek is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Patrick Chizek,
10012 Kennerly Rd Ste 102,
Saint Louis, MO 63128-2197

Ph: (314) 543-5240		Patrick Chizek,
10012 Kennerly Rd Ste 102,
Saint Louis, MO 63128-2197

Ph: (314) 543-5240

Reviews and Comments



Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.