Doctor profile · Federal record

Dr. Natalia Colocci, MD

Medical Oncology Physician (CMS: Hematology/Oncology) · Palo Alto, CA

  • NPI 1215948484
  • Accepts Medicare
  • 27 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
795 El Camino Real
Palo Alto, CA 943012302
(650) 321-4121
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
May 26, 2020
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
California #A72747

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215948484. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
18,316
Distinct HCPCS
10
Medicare allowed
$719,650
HCPCS Description Services Patients Avg allowed
J3380 Injection, vedolizumab, 1 mg 9,300 14 $22
J9271 Injection, pembrolizumab, 1 mg 5,000 14 $54
J2405 Injection, ondansetron hydrochloride, per 1 mg 808 22 $0
J1100 Injection, dexamethasone sodium phosphate, 1 mg 642 27 $0
99215 Established patient office or other outpatient visit, 40-54 minutes 413 145 $217
J3489 Injection, zoledronic acid, 1 mg 372 73 $9
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 221 127 $88
96375 Injection of additional new drug or substance into vein 188 48 $21
96413 Administration of chemotherapy into vein, 1 hour or less 183 76 $181
J9217 Leuprolide acetate (for depot suspension), 7.5 mg 167 30 $170

In context: peer comparison

Among 3 peers in this city , average services per provider: 520. This provider delivers 35× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$262
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 2 $180.07
Daiichi Sankyo Inc. 2 $55.00
GlaxoSmithKline, LLC. 1 $27.20

By nature of payment

Food and Beverage
$262

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
716
Patients
223
Total drug cost
$1,419,649
Drug Type Claims Patients Total cost
Anastrozole Generic 219 68 $5,903
Tamoxifen Citrate Generic 76 28 $2,893
Prochlorperazine Maleate Generic 70 49 $785
Prednisone Generic 57 12 $419
Abiraterone Acetate Generic 48 0 $117,571
Xtandi (Enzalutamide) Brand 46 0 $476,897
Dexamethasone Generic 29 18 $631
Exemestane Generic 29 11 $5,701
Erleada (Apalutamide) Brand 26 0 $406,801
Ondansetron Hcl Generic 25 22 $575

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Natalia Colocci's medical specialty?
Dr. Natalia Colocci practices Medical Oncology Physician in Palo Alto, CA.
Where does Dr. Natalia Colocci practice?
Dr. Natalia Colocci practices at 795 El Camino Real, Palo Alto, CA 943012302. Office phone: 6503214121.
What is Dr. Natalia Colocci's NPI?
Dr. Natalia Colocci's National Provider Identifier (NPI) is 1215948484, issued by NPPES.
Does Dr. Natalia Colocci accept Medicare assignment?
Yes. Dr. Natalia Colocci accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Natalia Colocci commonly perform?
Top Medicare-reported procedures in 2023: Injection, vedolizumab, 1 mg (HCPCS J3380); Injection, pembrolizumab, 1 mg (HCPCS J9271); Injection, ondansetron hydrochloride, per 1 mg (HCPCS J2405). Source: CMS Medicare Physician & Other Practitioners file.