Gillian Headley, MD
NPI 1497865687 · Neonatal-Perinatal Medicine Physician · Rockford, IL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gillian Headley, MD is a Neonatal-Perinatal Medicine Physician provider in Rockford, IL (NPI 1497865687).
Provider details
- NPI number
- 1497865687
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 22363 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
2 documented practice locations
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
Additional practice locations (1)
- 855 N Westhaven DrOshkosh, WI 54904-7668Phone: (920) 303-8700
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2022-05-25
- Certified
- 2022-05-25
Frequently asked questions
- What is Gillian Headley's NPI number?
- Gillian Headley's National Provider Identifier (NPI) is 1497865687, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gillian Headley's specialty?
- Gillian Headley is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gillian Headley located?
- Gillian Headley's practice location on file with NPPES is 2400 N Rockton Ave, Rockford, IL 61103-3655.
- What is Gillian Headley's phone number?
- The practice phone number listed in the NPPES registry for Gillian Headley is (815) 971-5000.
- Does Gillian Headley accept Medicare?
- Gillian Headley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gillian Headley's NPI active?
- Yes — Gillian Headley's NPI (1497865687) is active in the NPPES registry as of the last update on 2022-05-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.