Mary Jo Ironside, MD
Family Medicine Physician · Rockford, IL
Mary Jo Ironside, MD is a family medicine physician with a practice address in Rockford, Illinois, and NPI 1275579658, issued on Jun 22, 2006. Check the license (Illinois 036069571, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mary Jo Ironside
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036069571 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1221 E State St, Rockford, IL 61104
- Phone
- (815) 972-1000
- Enumerated
- Jun 22, 2006
- Record last updated
- Nov 1, 2023
- Fax
- (815) 972-1086
- Medicaid ID
- 036069571 IL
- Medicare enrollment
- Enrolled (PECOS I20100116000323); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1983
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 1221 E State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eveleen Ackerman, F.N.P.Family Nurse Practitioner1568444008
- Dolores Apreda, DOStudent in an Organized Health Care Education/Training Program1013857408
- Laura BergerStudent in an Organized Health Care Education/Training Program1467394544
- Gerald Boyd, M.D.Family Medicine Physician1235111774
- Cynthia BrushClinical Social Worker1467738328
- Cheyenne CarrStudent in an Organized Health Care Education/Training Program1962343582
Verify Mary Jo Ironside 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 036069571Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
121 Medicare Part D claims for 43 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 13 claims were for opioids.
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
- The Board OF Trustees OF The University OF IllinoisRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Jo Ironside among 6,215 family medicine physician records in Illinois
Mary Jo Ironside, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1983 · median 2006 among the 3,714 with a school on file
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
145 family medicine physician records list a practice address in Rockford
They are 145 of the 3,893 NPPES records with a practice address in Rockford, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Rockford → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Carlos Aguero-Medina, MDRockford, IL 611041053364349
- Gerald Boyd, M.D.Rockford, IL 611041235111774
- Tammy Homman, M.D.Rockford, IL 611041558337956
- Mitchell King, MDRockford, IL 611041225038276
- Martin Lipsky, MDRockford, IL 611041801870845
- Lucio Martinez, MDRockford, IL 611041154397354
- Anna Meenan, M.D.Rockford, IL 611041518958578
- Michael Polizzotto, M.D.Rockford, IL 611041871595371
Common questions
What is Mary Jo Ironside, MD's NPI number?
Mary Jo Ironside, MD's National Provider Identifier (NPI) is 1275579658, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Jo Ironside, MD located?
The NPPES record lists a practice address at 1221 E State St, Rockford, IL, 61104. Phone: (815) 972-1000. Providers update this record themselves, so call before visiting.
How can I verify Mary Jo Ironside, MD's license?
NPPES lists Illinois license number 036069571, 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 Mary Jo Ironside, MD prescribe under Medicare Part D?
In 2024, Mary Jo Ironside, MD had 121 Medicare Part D claims for 43 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.