Mark Applebaum, M.D.
NPI 1033448147 · Pediatric Hematology & Oncology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Applebaum, M.D. is a Pediatric Hematology & Oncology Physician provider in Chicago, IL (NPI 1033448147).
Provider details
- NPI number
- 1033448147
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036.129256 (IL)
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
16 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
- 2009-12-18
- Last updated
- 2015-07-08
Frequently asked questions
- What is Mark Applebaum's NPI number?
- Mark Applebaum's National Provider Identifier (NPI) is 1033448147, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Applebaum's specialty?
- Mark Applebaum is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Applebaum located?
- Mark Applebaum's practice location on file with NPPES is 900 E 57th St Fl 5, Chicago, IL 60637-1428.
- What is Mark Applebaum's phone number?
- The practice phone number listed in the NPPES registry for Mark Applebaum is (773) 702-6808.
- Does Mark Applebaum accept Medicare?
- Mark Applebaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Applebaum's NPI active?
- Yes — Mark Applebaum's NPI (1033448147) is active in the NPPES registry as of the last update on 2015-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.