Charlotte O'Sullivan, MD
NPI 1487455416 · Obstetrics & Gynecology Physician · Hoffman Estates, IL
Charlotte O'Sullivan, MD is a Obstetrics & Gynecology Physician provider in Hoffman Estates, IL (NPI 1487455416).
Provider details
- NPI number
- 1487455416
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- NA (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
1 yr 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
- 2025-03-24
- Last updated
- 2025-03-24
- Certified
- 2025-03-24
Frequently asked questions
- What is Charlotte O'Sullivan's NPI number?
- Charlotte O'Sullivan's National Provider Identifier (NPI) is 1487455416, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlotte O'Sullivan's specialty?
- Charlotte O'Sullivan is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Charlotte O'Sullivan located?
- Charlotte O'Sullivan's practice location on file with NPPES is 1555 N Barrington Rd, Hoffman Estates, IL 60169-1019.
- What is Charlotte O'Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Charlotte O'Sullivan is (630) 310-1765.
- Is Charlotte O'Sullivan's NPI active?
- Yes — Charlotte O'Sullivan's NPI (1487455416) is active in the NPPES registry as of the last update on 2025-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.