NPPES file of Aug 9, 2026

Patrick Chizek

Colon & Rectal Surgery Physician · Saint Louis, MO

Patrick Chizek is a colon & rectal surgery physician with a practice address in Saint Louis, Missouri, and NPI 1245790294, issued on Mar 24, 2019. Check the license (Missouri 2025032761, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245790294
Name
Patrick Chizek
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License number
2025032761 MO
Self-reported in NPPES; status is on the state search
Practice location
10012 Kennerly RD Ste 102, Saint Louis, MO 63128
Phone
(314) 543-5240
Enumerated
Mar 24, 2019
Record last updated
Sep 12, 2025
Fax
(314) 543-5239
Medicare enrollment
Enrolled (PECOS I20250920000524); accepts Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 2019
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 10012 Kennerly RD Ste 102

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Aireen-Ronalda Agulto, MDGastroenterology Physician1447771191
  2. Zarir AhmedGastroenterology Physician1770937492
  3. Badr Alhumayyd, MBBSGastroenterology Physician1821659095
  4. Mohammed Eyad Alsabbagh, M.D.Gastroenterology Physician1083917090
  5. Youssef Assioun, MDGastroenterology Physician1639370919
  6. Cheryl Bayens, FNPFamily Nurse Practitioner1679967673

Verify Patrick Chizek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2025032761
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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70% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024

58 Medicare Part D claims for 38 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 32 claims were for opioids.

  1. Patrick Chizek58
  2. Specialty average192

Most prescribed

  1. Oxycodone Hcl19 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $604.81

5 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Patrick Chizek$604.81
  2. Specialty average$3,468.16

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Mercy Clinic Gastroenterology LLCSaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Patrick Chizek among 35 colon & rectal surgery physician records in Missouri

Patrick Chizek is one of 35 colon & rectal surgery physician records with a practice address in Missouri. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 97% of them.

  • NPI issued2019 · 97% of these records are older, 0% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 86% of these records are
  • Graduated2019 · median 2003 among the 30 with a school on file
  • Record last updated2025 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Colon & Rectal Surgery Physician providers in Missouri

There are 35 colon & rectal surgery physician records in Missouri.

The 8 colon & rectal surgery physician records with the nearest ZIP codes

  1. David Schuval, MDSt Louis, MO 631281114993706
  2. Ralph Silverman, MDSt Louis, MO 631281801899141
  3. Donald Summers, MDSaint Louis, MO 631171912961962
  4. Steven Abbadessa, D.O.Saint Louis, MO 631411881668564
  5. William Chapman, MDSaint Louis, MO 631411003297177
  6. Kathryn Galie, MDSaint Louis, MO 631411164433512
  7. Hannah-Ngoc Ha, M.D.Creve Coeur, MO 631411144223355
  8. Ira Kodner, MDSaint Louis, MO 631411760408983

Common questions

What is Patrick Chizek's NPI number?

Patrick Chizek's National Provider Identifier (NPI) is 1245790294, issued on Mar 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Patrick Chizek located?

The NPPES record lists a practice address at 10012 Kennerly RD Ste 102, Saint Louis, MO, 63128. Phone: (314) 543-5240. Providers update this record themselves, so call before visiting.

How can I verify Patrick Chizek's license?

NPPES lists Missouri license number 2025032761, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Patrick Chizek prescribe under Medicare Part D?

In 2024, Patrick Chizek had 58 Medicare Part D claims for 38 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.