Michael Maranzano, M.D.
NPI 1114453016 · Hematology & Oncology Physician · Los Angeles, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Maranzano, M.D. is a Hematology & Oncology Physician provider in Los Angeles, CA (NPI 1114453016).
Provider details
- NPI number
- 1114453016
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 170563 (CA)
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 tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$255 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-05-11
- Last updated
- 2025-03-07
- Certified
- 2025-03-07
Frequently asked questions
- What is Michael Maranzano's NPI number?
- Michael Maranzano's National Provider Identifier (NPI) is 1114453016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Maranzano's specialty?
- Michael Maranzano is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Maranzano located?
- Michael Maranzano's practice location on file with NPPES is 2051 Marengo St, Los Angeles, CA 90033-1352.
- What is Michael Maranzano's phone number?
- The practice phone number listed in the NPPES registry for Michael Maranzano is (323) 409-7804.
- Does Michael Maranzano accept Medicare?
- Michael Maranzano is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Maranzano's NPI active?
- Yes — Michael Maranzano's NPI (1114453016) is active in the NPPES registry as of the last update on 2025-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.