Irisha Gerrhea Clark, MD
Emergency Medicine Physician · Rockford, IL
Irisha Gerrhea Clark, MD is an emergency medicine physician with a practice address in Rockford, Illinois, and NPI 1285217760, issued on May 3, 2021. Check the license (Illinois 036168184, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Irisha Gerrhea Clark
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036168184 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1401 E State St, Rockford, IL 61104
- Phone
- (779) 696-4400
- Enumerated
- May 3, 2021
- Record last updated
- Apr 25, 2024
- Medicare enrollment
- Enrolled (PECOS I20240711002537); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 1401 E State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Martin Anyebuno, M.D.Neonatal-Perinatal Medicine Physician1982661955
- Amit Bakshi, M.D.Emergency Medicine Physician1326296732
- Amanda Beard, PT, DPTPhysical Therapist1760125819
- Daniel Bentley, PASurgical Physician Assistant1629177647
Verify Irisha Gerrhea Clark 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 036168184Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average emergency medicine physician in 2024
139 Medicare Part D claims for 101 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Cephalexin23 claims
- Methocarbamol13 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 2 group practices
- Belvidere Emergency Physicians, LLCBelvidere, IL
- Rockford Emergency Physicians, LLCRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Irisha Gerrhea Clark among 3,291 emergency medicine physician records in Illinois
Irisha Gerrhea Clark, MD 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 2021, is newer than 82% of them.
- NPI issued2021 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2021 · median 2012 among the 1,867 with a school on file
- Record last updated2024 · 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).
53 emergency medicine physician records list a practice address in Rockford
They are 53 of the 3,893 NPPES records with a practice address in Rockford, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Rockford → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Amit Bakshi, M.D.Rockford, IL 611041326296732
- Sonia Callejas, M.D.Rockford, IL 611041740243724
- Kristina Damisch, MDRockford, IL 611041831751338
- Richard Herrmann, M.D.Rockford, IL 611041598052532
- Sarah Iqbal, MDRockford, IL 611041922622679
- Sonia Khan, D.O.Rockford, IL 611041710341987
- Patrick Klocek, D.O.Rockford, IL 611041528294089
- Amanda Miller, D.O.Rockford, IL 611041376704320
Common questions
What is Irisha Gerrhea Clark, MD's NPI number?
Irisha Gerrhea Clark, MD's National Provider Identifier (NPI) is 1285217760, issued on May 3, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Irisha Gerrhea Clark, MD located?
The NPPES record lists a practice address at 1401 E State St, Rockford, IL, 61104. Phone: (779) 696-4400. Providers update this record themselves, so call before visiting.
How can I verify Irisha Gerrhea Clark, MD's license?
NPPES lists Illinois license number 036168184, 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 Irisha Gerrhea Clark, MD prescribe under Medicare Part D?
In 2024, Irisha Gerrhea Clark, MD had 139 Medicare Part D claims for 101 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.