Rosemary Guerguerian, MD
NPI 1265482749 · Emergency Medicine Physician · Mount Prospect, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rosemary Guerguerian, MD is a Emergency Medicine Physician provider in Mount Prospect, IL (NPI 1265482749).
Provider details
- NPI number
- 1265482749
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 0101236285 (VA)
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
20 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
- 2006-05-12
- Last updated
- 2026-05-06
- Certified
- 2026-05-06
Frequently asked questions
- What is Rosemary Guerguerian's NPI number?
- Rosemary Guerguerian's National Provider Identifier (NPI) is 1265482749, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosemary Guerguerian's specialty?
- Rosemary Guerguerian is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rosemary Guerguerian located?
- Rosemary Guerguerian's practice location on file with NPPES is 199 W Rand Rd Ste 203, Mount Prospect, IL 60056-1157.
- What is Rosemary Guerguerian's phone number?
- The practice phone number listed in the NPPES registry for Rosemary Guerguerian is (847) 618-5400.
- Does Rosemary Guerguerian accept Medicare?
- Rosemary Guerguerian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rosemary Guerguerian's NPI active?
- Yes — Rosemary Guerguerian's NPI (1265482749) is active in the NPPES registry as of the last update on 2026-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.