Ronald Semerdjian, M.D.
NPI 1154530798 · Pulmonary Disease Physician · Wilmette, IL
Ronald Semerdjian, M.D. is a Pulmonary Disease Physician provider in Wilmette, IL (NPI 1154530798).
Provider details
- NPI number
- 1154530798
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
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
83% 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
- 2007-05-21
- Last updated
- 2025-09-11
Frequently asked questions
- What is Ronald Semerdjian's NPI number?
- Ronald Semerdjian's National Provider Identifier (NPI) is 1154530798, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Semerdjian's specialty?
- Ronald Semerdjian is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Semerdjian located?
- Ronald Semerdjian's practice location on file with NPPES is 2507 Kenilworth Ave, Wilmette, IL 60091-1336.
- What is Ronald Semerdjian's phone number?
- The practice phone number listed in the NPPES registry for Ronald Semerdjian is (847) 251-8669.
- Is Ronald Semerdjian's NPI active?
- Yes — Ronald Semerdjian's NPI (1154530798) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.