Mary Jo Ironside, MD
NPI 1275579658 · Family Medicine Physician · Rockford, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Jo Ironside, MD is a Family Medicine Physician provider in Rockford, IL (NPI 1275579658).
Provider details
- NPI number
- 1275579658
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036069571 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-22
- Last updated
- 2023-11-01
- Certified
- 2023-11-01
Frequently asked questions
- What is Mary Jo Ironside's NPI number?
- Mary Jo Ironside's National Provider Identifier (NPI) is 1275579658, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Jo Ironside's specialty?
- Mary Jo Ironside is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Jo Ironside located?
- Mary Jo Ironside's practice location on file with NPPES is 1221 E State St, Rockford, IL 61104-2231.
- What is Mary Jo Ironside's phone number?
- The practice phone number listed in the NPPES registry for Mary Jo Ironside is (815) 972-1000.
- Does Mary Jo Ironside accept Medicare?
- Mary Jo Ironside is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Jo Ironside's NPI active?
- Yes — Mary Jo Ironside's NPI (1275579658) is active in the NPPES registry as of the last update on 2023-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.