Doctor profile · Federal record

Dr. Melissa Cohen, M.D.

Medical Oncology Physician (CMS: Medical Oncology) · Internal Medicine Physician · Simi Valley, CA

  • NPI 1174763262
  • Accepts Medicare
  • MIPS 100.0 / 100 · 2023
  • 24 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2750 Sycamore Dr, 201
Simi Valley, CA 930651502
(805) 583-0110
Mailing address
10945 Leconte Ave, Department of Hematology/Onconlogy
Los Angeles, CA 900950001

Credentials & registration

NPPES · NUCC
NPI registered
March 2009 — 17 yrs on file
Profile last updated
October 6, 2011
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
California #A104517

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174763262. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
7,898
Distinct HCPCS
10
Medicare allowed
$295,148
HCPCS Description Services Patients Avg allowed
J0897 Injection, denosumab, 1 mg 3,900 39 $23
J1100 Injection, dexamethasone sodium phosphate, 1 mg 574 17 $0
J2469 Injection, palonosetron hcl, 25 mcg 511 19 $1
99214 Established patient office or other outpatient visit, 30-39 minutes 482 218 $139
99213 Established patient office or other outpatient visit, 20-29 minutes 345 276 $99
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 338 141 $8
J7050 Infusion, normal saline solution, 250 cc 256 65 $1
96375 Injection of additional new drug or substance into vein 194 37 $18
99215 Established patient office or other outpatient visit, 40-54 minutes 192 136 $142
96413 Administration of chemotherapy into vein, 1 hour or less 140 45 $154

In context: peer comparison

Among 1 peers in Simi Valley Medical Oncology Physician, average services per provider: 263. This provider delivers 30× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,099
Transactions
17
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 9 $897.30
Daiichi Sankyo INC. 2 $53.35
Merck Sharp & Dohme LLC 1 $32.05
Abbvie INC. 1 $26.01
AstraZeneca Pharmaceuticals Lp 1 $24.04
Incyte Corporation 1 $22.76
Genmab U.S., INC. 1 $22.56
E.R. Squibb & Sons, L.L.C. 1 $20.96

By nature of payment

Long Term Medical Supply or Device Loan
$897
Food and Beverage
$202

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
763
Patients
278
Total drug cost
$756,266
Drug Type Claims Patients Total cost
Anastrozole Generic 209 71 $7,797
Tamoxifen Citrate Generic 77 28 $1,967
Hydroxyurea Generic 51 18 $2,199
Letrozole Generic 49 20 $2,440
Xarelto (Rivaroxaban) Brand 46 18 $53,064
Eliquis (Apixaban) Brand 40 11 $39,208
Dexamethasone Generic 39 22 $804
Tagrisso (Osimertinib Mesylate) Brand 39 0 $643,522
Venlafaxine Hcl ER (Venlafaxine Hcl) Brand 37 13 $1,082
Pantoprazole Sodium Generic 34 14 $871

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Melissa Cohen's medical specialty?
Dr. Melissa Cohen practices Medical Oncology Physician in Simi Valley, CA.
Where does Dr. Melissa Cohen practice?
Dr. Melissa Cohen practices at 2750 Sycamore Dr, Simi Valley, CA 930651502. Office phone: 8055830110.
What is Dr. Melissa Cohen's NPI?
Dr. Melissa Cohen's National Provider Identifier (NPI) is 1174763262, issued by NPPES.
Does Dr. Melissa Cohen accept Medicare assignment?
Yes. Dr. Melissa Cohen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Melissa Cohen commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100); Injection, palonosetron hcl, 25 mcg (HCPCS J2469). Source: CMS Medicare Physician & Other Practitioners file.