Marrissa Mia Dybas, DO
Emergency Medicine Physician · Peru, IL
Marrissa Mia Dybas, DO is an emergency medicine physician with a practice address in Peru, Illinois, and NPI 1376238303, issued on Apr 6, 2023. Check the license (Illinois 036180677, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marrissa Mia Dybas
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036180677 IL
Self-reported in NPPES; status is on the state search - Practice location
- 925 West St, Peru, IL 61354
- Phone
- (815) 221-1384
- Enumerated
- Apr 6, 2023
- Record last updated
- Jun 24, 2026
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 925 West St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rene Anderes, R.D., L.D.N.Registered Dietitian1801199252
- Haleigh Augspols, MS, RD, LDNRegistered Dietitian1174050504
- Nathan BowersCertified Registered Nurse Anesthetist1467846493
- Matthew Bruno, P.A.Physician Assistant1104854066
- Steven Busch, CRNACertified Registered Nurse Anesthetist1740257765
- Steven Cullen, M.D.Emergency Medicine Physician1518933860
Verify Marrissa Mia Dybas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036180677Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average emergency medicine physician in 2024
61 Medicare Part D claims for 44 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Marrissa Mia Dybas among 3,291 emergency medicine physician records in Illinois
Marrissa Mia Dybas, DO is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 89% of them.
- NPI issued2023 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 emergency medicine physician records list a practice address in Peru
They are 5 of the 224 NPPES records with a practice address in Peru, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Peru → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Steven Cullen, M.D.Peru, IL 613541518933860
- Kleven Israelsen, D.O.Peru, IL 613541740232560
- Lawrence Powell, D.O.Peru, IL 613541578535381
- Matthew Wols, M.D.Peru, IL 613541427020544
- Alan Dumontier, MDPrinceton, IL 613561053368209
- Leonard Kaczorowski, M.D.Princeton, IL 613561407849904
- Diana Goodwine, MDOttawa, IL 613501780840397
- Anastasia Khoubaeva, M.D.Ottawa, IL 613501053643106
Common questions
What is Marrissa Mia Dybas, DO's NPI number?
Marrissa Mia Dybas, DO's National Provider Identifier (NPI) is 1376238303, issued on Apr 6, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Marrissa Mia Dybas, DO located?
The NPPES record lists a practice address at 925 West St, Peru, IL, 61354. Phone: (815) 221-1384. Providers update this record themselves, so call before visiting.
How can I verify Marrissa Mia Dybas, DO's license?
NPPES lists Illinois license number 036180677, 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 Marrissa Mia Dybas, DO prescribe under Medicare Part D?
In 2024, Marrissa Mia Dybas, DO had 61 Medicare Part D claims for 44 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.