Leonardo Malalis, M.D.
NPI 1447297817 · Neonatal-Perinatal Medicine Physician · Oak Brook, IL
Leonardo Malalis, M.D. is a Neonatal-Perinatal Medicine Physician provider in Oak Brook, IL (NPI 1447297817).
Provider details
- NPI number
- 1447297817
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-058364 (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
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
- 2006-06-02
- Last updated
- 2008-07-09
Frequently asked questions
- What is Leonardo Malalis's NPI number?
- Leonardo Malalis's National Provider Identifier (NPI) is 1447297817, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonardo Malalis's specialty?
- Leonardo Malalis is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leonardo Malalis located?
- Leonardo Malalis's practice location on file with NPPES is 900 Jorie Blvd, Oak Brook, IL 60523-2213.
- What is Leonardo Malalis's phone number?
- The practice phone number listed in the NPPES registry for Leonardo Malalis is (630) 954-6700.
- Is Leonardo Malalis's NPI active?
- Yes — Leonardo Malalis's NPI (1447297817) is active in the NPPES registry as of the last update on 2008-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.