Dr. Maritza Elena Ruiz, MD
- Publications
- 5
- Industry payments
- $10,415
- Insurance carriers
- 8
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 1201 W La Veta Ave, Orange, CA 92868
- Practice phone
- Call (714) 997-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Children's Hospital of Orange County Main Campus
Orange, California
Find Dr. Ruiz's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Maritza Elena Ruiz is a pediatric hematology and oncology physician in Orange, California
Dr. Ruiz practices at Children's Hospital of Orange County Main Campus in Orange, California.
Dr. Ruiz's NPI, 1275725061, was assigned on August 15, 2007. Dr. Ruiz graduated from David Geffen School of Medicine at UCLA in 2007. Dr. Ruiz holds California license A107484.
- NPI
- 1275725061NPI Registry (opens in a new tab)
- NPI enumeration date
- August 15, 2007
- NPI status
- Active
- Practice phone
- (714) 997-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Maritza Elena Ruiz practices at Children's Hospital of Orange County Main Campus in Orange, California
Dr. Ruiz's primary practice is Children's Hospital of Orange County Main Campus, at 1201 W La Veta Ave, Orange, CA 92868 in Orange County. The practice phone is (714) 997-3000.
- Children's Hospital of Orange County Main Campus1201 W La Veta Ave, Orange, CA 92868 · Orange CountyPhone(714) 997-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Maritza Elena Ruiz is affiliated with 1 site of care
Dr. Ruiz's primary practice is Children's Hospital of Orange County Main Campus in Orange, California.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Maritza Elena Ruiz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ruiz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Children's Hospital of Orange County Main Campus | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Maritza Elena Ruiz is one of 385 pediatric hematologys and oncology physicians in California
Pediatric hematology-oncology is Dr. Ruiz's primary specialty in the NPI Registry, under taxonomy code 2080P0207X. Dr. Ruiz is board certified in pediatric hematology-oncology by the American Board of Pediatrics. Dr. Ruiz is licensed in California.
Specialties and state licenses
- Pediatric hematology and oncology, CaliforniaPrimary
Pediatric hematologys and oncology physicians near Dr. Ruiz
Counts of pediatric hematologys and oncology physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Maritza Elena Ruiz's patients have a median age of 11
Across all payers, Dmand AI patient panel data puts Dr. Ruiz's median patient age at 11, with 49% women.
Dr. Ruiz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 11
Patient panel by sex, all payers
- Women49%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Maritza Elena Ruiz has 5 publications on record
Dmand AI links 5 papers to Dr. Ruiz, published from 2016 to 2022. 2022 was the busiest year, with 2. The most frequent topics are Cancer Survivors. Dr. Ruiz's most frequent co-authors are Jacqueline Nieto Casillas, MD, Harneet K. Hara, MD and Stephanie Horwitz Abrams, MD.
Topics Dr. Ruiz writes about most
- Cancer Survivors
Dr. Ruiz's most frequent co-authors
- Jacqueline Nieto Casillas, MD2 shared papers
- Harneet K. Hara, MD2 shared papers
- Stephanie Horwitz Abrams, MD1 shared paper
Recent publications by Dr. Ruiz
J Pediatr Hematol Oncol
Am J Clin Pathol
See who Dr. Ruiz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ruiz works with, so you can find a warm path to the right pediatric hematologys and oncology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Maritza Elena Ruiz received $10,415 in industry payments from 2016 to 2025
CMS Open Payments shows 44 general payments to Dr. Ruiz from 18 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 61% of the total. Sobi, Inc paid the most, $5,294. It also lists 1 research payment totaling $125 in 2023.
General payments to Dr. Ruiz by program year, 2016 to 2025
General payments to Dr. Ruiz by kind, 2016 to 2025
- Consulting fees$6,36861%
- Food and beverage$2,12020%
- Speaker and faculty fees$1,35713%
- Travel and lodging$5525%
- Education$190%
Companies that paid Dr. Ruiz the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Maritza Elena Ruiz graduated from David Geffen School of Medicine at UCLA
Dr. Ruiz graduated from David Geffen School of Medicine at UCLA in 2007.
- Medical school
- Board certified in pediatric hematology-oncology
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Maritza Elena Ruiz accepts plans from 8 insurance carriers
Dr. Ruiz is in network with 8 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- LA Care
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- Elevance
- HCSC
Plan types Dr. Ruiz accepts, by number of carriers
- PPO5
- HMO4
- POS4
- EPO2
- Medicare2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Maritza Elena Ruiz's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Maritza Elena Ruiz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Maritza Elena Ruiz's NPI number?
Dr. Maritza Elena Ruiz's NPI number is 1275725061. It was assigned on August 15, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Maritza Elena Ruiz?
Dr. Maritza Elena Ruiz is a pediatric hematology and oncology physician in Orange, California. The primary specialty in the NPI Registry is Pediatric Hematology & Oncology Physician (taxonomy code 2080P0207X).
Where does Dr. Maritza Elena Ruiz practice?
Dr. Ruiz practices at 1201 W La Veta Ave, Orange, CA 92868. Dr. Ruiz's primary practice is Children's Hospital of Orange County Main Campus in Orange, California.
What is Dr. Maritza Elena Ruiz's office phone number?
The practice phone on file for Dr. Ruiz is (714) 997-3000.
What is Dr. Maritza Elena Ruiz's medical license number?
Dr. Ruiz holds California license A107484.
Is Dr. Maritza Elena Ruiz board certified?
Yes. Dr. Ruiz is board certified in pediatric hematology-oncology by the American Board of Pediatrics.
Where did Dr. Maritza Elena Ruiz go to medical school?
Dr. Ruiz graduated from David Geffen School of Medicine at UCLA in 2007.
Has Dr. Maritza Elena Ruiz received payments from drug or device companies?
CMS Open Payments shows $10,415 in general payments to Dr. Ruiz from 18 companies from 2016 to 2025. The largest total came from Sobi, Inc.
How long has Dr. Maritza Elena Ruiz been practicing?
Dr. Ruiz graduated from medical school in 2007, 19 years ago.
Does Dr. Maritza Elena Ruiz do research?
Dmand AI links 5 publications to Dr. Ruiz, published from 2016 to 2022.
Who does Dr. Maritza Elena Ruiz publish with?
Dr. Ruiz's most frequent co-authors are Jacqueline Nieto Casillas, MD (2 shared papers), Harneet K. Hara, MD (2 shared papers) and Stephanie Horwitz Abrams, MD (1 shared paper).
What insurance does Dr. Maritza Elena Ruiz accept?
Dr. Ruiz is in network with 8 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 5. Check the plan with the practice before a visit.
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