Marissa Dreger, PA
Physician Assistant · Rockford, IL
Marissa Dreger, PA is a physician assistant with a practice address in Rockford, Illinois, and NPI 1609406008, issued on Jan 24, 2020. Check the license (Illinois 085007832, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marissa Dreger
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085007832 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1200 W State St, Rockford, IL 61102
- Phone
- (815) 490-1600
- Enumerated
- Jan 24, 2020
- Record last updated
- Mar 4, 2026
- Fax
- (815) 490-1881
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Also registered at 1200 W State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marissa Dreger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085007832Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average physician assistant in 2024
259 Medicare Part D claims for 137 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Prednisone24 claims
- Albuterol Sulfate Hfa18 claims
- Amoxicillin-Clavulanate Potass17 claims
- Amoxicillin13 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.
Marissa Dreger among 4,926 physician assistant records in Illinois
Marissa Dreger, PA is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 58% of them.
- NPI issued2020 · 58% of these records are older, 34% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2026 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
115 physician assistant records list a practice address in Rockford
They are 115 of the 3,893 NPPES records with a practice address in Rockford, and 4,926 physician assistant records in Illinois.
All 4,926 in Illinois → Every provider in Rockford → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Christina Crum, PA-CRockford, IL 611021326236563
- Gordon EggersRockford, IL 611021033192927
- Marta Haight, PA-CRockford, IL 611021659677557
- Jonathan Hopman, PA-CRockford, IL 611021598964660
- Trisha Leonard, PA-CRockford, IL 611021427508233
- Olynda Mileon-Etuk, MPH, MS, PA-CRockford, IL 611021396216354
- Christian MurilloRockford, IL 611021437779071
- Karla Navarro-Vega, PA-CRockford, IL 611021649890625
Common questions
What is Marissa Dreger, PA's NPI number?
Marissa Dreger, PA's National Provider Identifier (NPI) is 1609406008, issued on Jan 24, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Marissa Dreger, PA located?
The NPPES record lists a practice address at 1200 W State St, Rockford, IL, 61102. Phone: (815) 490-1600. Providers update this record themselves, so call before visiting.
How can I verify Marissa Dreger, PA's license?
NPPES lists Illinois license number 085007832, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Marissa Dreger, PA prescribe under Medicare Part D?
In 2024, Marissa Dreger, PA had 259 Medicare Part D claims for 137 beneficiaries; the average among physician assistant prescribers was 830. 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.