NPPES file of Aug 9, 2026

Andrew Z. Zasada, M.D.

Hospitalist Physician · Mattoon, IL

Andrew Z. Zasada, M.D. is a hospitalist physician with a practice address in Mattoon, Illinois, and NPI 1679590269, issued on Jul 17, 2006. Check the license (Illinois 036-074571, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1679590269
Name
Andrew Z. Zasada
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
036-074571 IL
183698-1 NY
Self-reported in NPPES; status is on the state search
Practice location
1000 Health Center Drive, Mattoon, IL 61938
Phone
(217) 238-4325
Enumerated
Jul 17, 2006
Record last updated
Aug 22, 2023
Medicaid IDs
036074571 IL
200121290 IL
Medicare enrollment
Enrolled (PECOS I20040120001019); accepts Medicare assignment
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 1000 Health Center Drive

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

  1. George Grant, MDEmergency Medicine Physician1376565788
  2. Thomas Gray, C.R.N.A.Certified Registered Nurse Anesthetist1619069507
  3. Robert Ludwig, CRNACertified Registered Nurse Anesthetist1467506261
  4. Sergio Rodriguez, M.D.Hospitalist Physician1326276486
  5. John Schmale, MDHematology & Oncology Physician1881784262

Verify Andrew Z. Zasada in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036-074571
    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 Illinois 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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19% more Medicare Part D claims than the average hospitalist physician in 2024

619 Medicare Part D claims for 288 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 71 claims were for opioids.

  1. Andrew Zasada619
  2. Specialty average521

Most prescribed

  1. Sulfamethoxazole-Trimethoprim32 claims
  2. Azithromycin31 claims
  3. Diclofenac Sodium Er29 claims
  4. Tramadol Hcl29 claims
  5. Hydrocodone-Acetaminophen23 claims
  6. Naproxen22 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. Iems Physician Services PLLCUrbana, IL

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

Andrew Z. Zasada among 1,535 hospitalist physician records in Illinois

Andrew Z. Zasada, M.D. is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% 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 1% of them.

  • NPI issued2006 · 1% of these records are older, 88% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated1982 · median 2013 among the 1,339 with a school on file
  • Record last updated2023 · 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 hospitalist physician records list a practice address in Mattoon

They are 11 of the 803 NPPES records with a practice address in Mattoon, and 1,535 hospitalist physician records in Illinois.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Babatunde Alao, M.D.Mattoon, IL 619381477714053
  2. Megan BosleyMattoon, IL 619381902426497
  3. Usama Bukhari, MDMattoon, IL 619381568818128
  4. Arli Bumatayo, MDMattoon, IL 619381639439177
  5. Kiersten Emberton, APRNMattoon, IL 619381891329280
  6. Timothy Hemp, DOMattoon, IL 619381083119317
  7. Deepa Kalapurayil, MDMattoon, IL 619381760976328
  8. Dominic Perrino, D.O.Mattoon, IL 619381003253972

Common questions

What is Andrew Z. Zasada, M.D.'s NPI number?

Andrew Z. Zasada, M.D.'s National Provider Identifier (NPI) is 1679590269, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Z. Zasada, M.D. located?

The NPPES record lists a practice address at 1000 Health Center Drive, Mattoon, IL, 61938. Phone: (217) 238-4325. Providers update this record themselves, so call before visiting.

How can I verify Andrew Z. Zasada, M.D.'s license?

NPPES lists Illinois license number 036-074571, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Andrew Z. Zasada, M.D. prescribe under Medicare Part D?

In 2024, Andrew Z. Zasada, M.D. had 619 Medicare Part D claims for 288 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.