Carol Yukiko Nishikubo, M.D.
Hematology & Oncology Physician · Santa Monica, CA
Carol Yukiko Nishikubo, M.D. is a hematology & oncology physician with a practice address in Santa Monica, California, and NPI 1023083888, issued on Feb 22, 2006. Check the license (California G78746, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Carol Yukiko Nishikubo
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- G78746 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2001 Santa Monica Blvd Ste 560W, Santa Monica, CA 90404
- Phone
- (310) 453-5654
- Enumerated
- Feb 22, 2006
- Record last updated
- Jan 23, 2024
- Fax
- (310) 453-6885
- Medicaid IDs
- G787460 CA
GR0085740 CA - Medicare enrollment
- Enrolled (PECOS I20100723000705); 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 2001 Santa Monica Blvd Ste 560W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Cary, PAPhysician Assistant1376733790
- Sean Fischer, M.D.Hematology & Oncology Physician1801842943
- Timothy Kristedja, MDHematology & Oncology Physician1881897494
- Laura Larose, RN-BC, MSN, OCNNurse Practitioner1538687462
- Vivek ShahHematology (Internal Medicine) Physician1013570563
- Brian Wolf, MDHematology & Oncology Physician1730640772
Verify Carol Yukiko Nishikubo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G78746Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
553 Medicare Part D claims for 178 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Anastrozole104 claims
- Letrozole43 claims
- Eliquis36 claims
- Hydroxyurea30 claims
- Warfarin Sodium22 claims
- Tamoxifen Citrate18 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: $111.72
1 payment: food and beverage; the largest payer was Janssen Biotech, Inc. 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
- Providence Saint Johns Medical FoundationLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carol Yukiko Nishikubo among 1,583 hematology & oncology physician records in California
Carol Yukiko Nishikubo, M.D. 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1990 · median 2003 among the 1,124 with a school on file
- Record last updated2024 · 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 Santa Monica → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Thompson Adams, MDSanta Monica, CA 904041407880891
- Aditya Bardia, MDSanta Monica, CA 904041639210107
- Peter Boasberg, MDSanta Monica, CA 904041417982331
- Richard Finn, MDSanta Monica, CA 904041811912074
- Sean Fischer, M.D.Santa Monica, CA 904041801842943
- Omid Hamid, M.D.Santa Monica, CA 904041215966775
- Kathryn Henick, M.D.Santa Monica, CA 904041912972779
- Silvana Martino, D.O.Santa Monica, CA 904041073626362
Common questions
What is Carol Yukiko Nishikubo, M.D.'s NPI number?
Carol Yukiko Nishikubo, M.D.'s National Provider Identifier (NPI) is 1023083888, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carol Yukiko Nishikubo, M.D. located?
The NPPES record lists a practice address at 2001 Santa Monica Blvd Ste 560W, Santa Monica, CA, 90404. Phone: (310) 453-5654. Providers update this record themselves, so call before visiting.
How can I verify Carol Yukiko Nishikubo, M.D.'s license?
NPPES lists California license number G78746, 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 Carol Yukiko Nishikubo, M.D. prescribe under Medicare Part D?
In 2024, Carol Yukiko Nishikubo, M.D. had 553 Medicare Part D claims for 178 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.