NPPES file of Aug 9, 2026

Gregory Chediak, MD

Hospitalist Physician · Topeka, KS

Gregory Chediak, MD is a hospitalist physician with a practice address in Topeka, Kansas, and NPI 1902865769, issued on Mar 21, 2006. Check the license (Kansas 04-26872, as entered in NPPES) on the Kansas State Board of 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
1902865769
Name
Gregory Chediak
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License number
04-26872 KS
Self-reported in NPPES; status is on the state search
Practice location
1500 SW 10TH Ave, Topeka, KS 66604
Phone
(785) 354-5242
Enumerated
Mar 21, 2006
Record last updated
Oct 3, 2025
Medicaid IDs
100287460C KS
30004558320001 KS
Medicare enrollment
Enrolled (PECOS I20050804000938); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 1989
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.
Download card Updates feed

Also registered at 1500 SW 10TH Ave

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

  1. Hossam Abed, MDHospitalist Physician1245848647
  2. Al Mamon Abu Ghanimah, MDHospitalist Physician1417239013
  3. Omar Abu Naba'a, MDHospitalist Physician1154577310
  4. Yazan Addasi, MDHospitalist Physician1215589874
  5. Tewodros Addisse, MDHospitalist Physician1366412751
  6. Babar Ahmed, MDFamily Medicine Physician1285627323

Verify Gregory Chediak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKansas State Board of Healing Arts
    Search for license 04-26872
    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 Kansas 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

66% fewer Medicare Part D claims than the average hospitalist physician in 2024

178 Medicare Part D claims for 92 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 11 claims were for opioids.

  1. Gregory Chediak178
  2. Specialty average521

Most prescribed

  1. Pantoprazole Sodium19 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.

Bills Medicare through one group practice

  1. Cotton-O'Neil Clinic Revocable TrustTopeka, KS

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

Gregory Chediak among 182 hospitalist physician records in Kansas

Gregory Chediak, MD is one of 182 hospitalist physician records with a practice address in Kansas. 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 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 81% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1989 · median 2012 among the 132 with a school on file
  • Record last updated2025 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Kansas

There are 182 hospitalist physician records in Kansas.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Omar Abu Naba'a, MDTopeka, KS 666041154577310
  2. Tewodros Addisse, MDTopeka, KS 666041366412751
  3. Thomas Anderson, MD,PHDTopeka, KS 666041396794772
  4. Jason Austin, DOTopeka, KS 666041578735056
  5. John Chamberlin, MDTopeka, KS 666041730172883
  6. Steven Crouch, MDTopeka, KS 666041972515112
  7. Kevin Dishman, MDTopeka, KS 666041477503662
  8. Jan Michael Dungao, MDTopeka, KS 666041548427057

Common questions

What is Gregory Chediak, MD's NPI number?

Gregory Chediak, MD's National Provider Identifier (NPI) is 1902865769, issued on Mar 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Chediak, MD located?

The NPPES record lists a practice address at 1500 SW 10TH Ave, Topeka, KS, 66604. Phone: (785) 354-5242. Providers update this record themselves, so call before visiting.

How can I verify Gregory Chediak, MD's license?

NPPES lists Kansas license number 04-26872, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory Chediak, MD prescribe under Medicare Part D?

In 2024, Gregory Chediak, MD had 178 Medicare Part D claims for 92 beneficiaries; the average among hospitalist physician prescribers was 521. 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.