Doctor profile · Federal record

Dr. Carol Nishikubo, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Santa Monica, CA

  • NPI 1023083888
  • Accepts Medicare
  • 36 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2001 Santa Monica Blvd Ste 560W
Santa Monica, CA 904042182
(310) 453-5654
fax (310) 453-6885
Mailing address
2021 Santa Monica Blvd, Suite 400E
Santa Monica, CA 904042208

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
January 23, 2024
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #G78746
Medicaid (2)
CA #G787460 · CA #GR0085740

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023083888. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
13,594
Distinct HCPCS
10
Medicare allowed
$398,531
HCPCS Description Services Patients Avg allowed
J0897 Injection, denosumab, 1 mg 8,160 23 $23
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 920 401 $8
J2469 Injection, palonosetron hcl, 25 mcg 742 19 $1
36415 Insertion of needle into vein for collection of blood sample 697 383 $8
80053 Blood test, comprehensive group of blood chemicals 673 353 $10
99213 Established patient office or other outpatient visit, 20-29 minutes 624 407 $100
99214 Established patient office or other outpatient visit, 30-39 minutes 313 178 $137
86300 Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 275 182 $20
82378 Carcinoembryonic antigen (cea) protein level 260 181 $18
96375 Injection of additional new drug or substance into vein 214 22 $18

In context: peer comparison

Among 10 peers in this city , average services per provider: 890. This provider delivers 15× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$112
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Janssen Biotech, Inc. 1 $111.72

By nature of payment

Food and Beverage
$112

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
595
Patients
102
Total drug cost
$948,359
Drug Type Claims Patients Total cost
Anastrozole Generic 175 58 $5,194
Letrozole Generic 65 17 $1,940
Hydroxyurea Generic 63 15 $3,053
Warfarin Sodium Generic 39 0 $720
Xarelto (Rivaroxaban) Brand 39 0 $34,355
Eliquis (Apixaban) Brand 34 0 $32,063
Ibrance (Palbociclib) Brand 32 0 $457,157
Tamoxifen Citrate Generic 29 12 $731
Alendronate Sodium Generic 21 0 $164
Imbruvica (Ibrutinib) Brand 21 0 $296,053

Frequently asked questions

Auto-generated from federal data
What is Dr. Carol Nishikubo's medical specialty?
Dr. Carol Nishikubo practices Hematology & Oncology Physician in Santa Monica, CA.
Where does Dr. Carol Nishikubo practice?
Dr. Carol Nishikubo practices at 2001 Santa Monica Blvd Ste 560W, Santa Monica, CA 904042182. Office phone: 3104535654.
What is Dr. Carol Nishikubo's NPI?
Dr. Carol Nishikubo's National Provider Identifier (NPI) is 1023083888, issued by NPPES.
Does Dr. Carol Nishikubo accept Medicare assignment?
Yes. Dr. Carol Nishikubo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Carol Nishikubo commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025); Injection, palonosetron hcl, 25 mcg (HCPCS J2469). Source: CMS Medicare Physician & Other Practitioners file.