Maritza Ruiz, M.D.
NPI 1275725061 · Pediatric Hematology & Oncology Physician · Long Beach, CA
Maritza Ruiz, M.D. is a Pediatric Hematology & Oncology Physician provider in Long Beach, CA (NPI 1275725061).
Provider details
- NPI number
- 1275725061
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A107484 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$294 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
Additional practice locations (1)
- 1000 W. Carson St., Box 17Torrance, CA 90509Phone: (310) 222-2343
Registry dates
- Enumerated
- 2007-08-15
- Last updated
- 2022-07-21
Frequently asked questions
- What is Maritza Ruiz's NPI number?
- Maritza Ruiz's National Provider Identifier (NPI) is 1275725061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maritza Ruiz's specialty?
- Maritza Ruiz is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Maritza Ruiz located?
- Maritza Ruiz's practice location on file with NPPES is 2653 Elm Ave Ste 200, Long Beach, CA 90806-1652.
- What is Maritza Ruiz's phone number?
- The practice phone number listed in the NPPES registry for Maritza Ruiz is (562) 728-5000.
- Is Maritza Ruiz's NPI active?
- Yes — Maritza Ruiz's NPI (1275725061) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.