Candice A. Ruby, MD
Hematology & Oncology Physician · Riverside, CA
Candice A. Ruby, MD is a hematology & oncology physician with a practice address in Riverside, California, and NPI 1407904451, issued on Jan 8, 2007. Check the license (California A79069, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Candice A. Ruby
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A79069 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10800 Magnolia Ave, Riverside, CA 92505
- Phone
- (909) 353-2000
- Enumerated
- Jan 8, 2007
- Record last updated
- Nov 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20051019000714); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 10800 Magnolia Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Hussein Abdulrassoul, MDOrthopaedic Surgery Physician1972123891
- Kimberly Adams, PA-CMedical Physician Assistant1053522870
- Alfredo Aguiar, PAPhysician Assistant1043368970
- Michael Aguinaldo, M.D.Pediatrics Physician1851531487
- Maria Aguirre, MDPediatrics Physician1295806255
Verify Candice A. Ruby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A79069Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average hematology & oncology physician in 2024
1,997 Medicare Part D claims for 333 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 91 claims were for opioids.
Most prescribed
- Anastrozole122 claims
- Prednisone97 claims
- Abiraterone Acetate91 claims
- Ondansetron Hcl89 claims
- Letrozole87 claims
- Hydroxyurea74 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $3,422.99
7 payments; by number, the most common kind was consulting fee; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Candice A. Ruby among 1,583 hematology & oncology physician records in California
Candice A. Ruby, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 40% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1998 · median 2003 among the 1,124 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Riverside → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Xinting Fu, MDRiverside, CA 925051770650582
- Fawaz Gailani, MDRiverside, CA 925051013084839
- Andy Jang, MDRiverside, CA 925051386703031
- Annie Oh, M.D.Riverside, CA 925051205028404
- Sam Yeh, MDRiverside, CA 925051689741498
- Muhammad Muslim, MDRiverside, CA 925061861571218
- Ghaleb Saab, MDRiverside, CA 925061396720850
- Vaishali Saste, M.D.Riverside, CA 925061902950033
Common questions
What is Candice A. Ruby, MD's NPI number?
Candice A. Ruby, MD's National Provider Identifier (NPI) is 1407904451, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Candice A. Ruby, MD located?
The NPPES record lists a practice address at 10800 Magnolia Ave, Riverside, CA, 92505. Phone: (909) 353-2000. Providers update this record themselves, so call before visiting.
How can I verify Candice A. Ruby, MD's license?
NPPES lists California license number A79069, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Candice A. Ruby, MD prescribe under Medicare Part D?
In 2024, Candice A. Ruby, MD had 1,997 Medicare Part D claims for 333 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.