Doctor profile · Federal record

Dr. Alexander Losev, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Brooklyn, NY

  • NPI 1992732234
  • Accepts Medicare
  • MIPS 84.5 / 100 · 2023
  • 33 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2558 E 18Th St
Brooklyn, NY 112353518
(718) 616-0801
fax (718) 616-0809

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
February 22, 2021
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
New York #202203

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1992732234. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,671
Distinct HCPCS
8
Medicare allowed
$440,341
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 2,699 800 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 1,608 590 $107
99214 Established patient office or other outpatient visit, 30-39 minutes 617 218 $150
99215 Established patient office or other outpatient visit, 40-54 minutes 429 106 $209
99204 New patient office or other outpatient visit, 45-59 minutes 238 238 $198
38222 Biopsy and aspiration of bone marrow sample for diagnosis 38 38 $212
99203 New patient office or other outpatient visit, 30-44 minutes 23 23 $132
99205 New patient office or other outpatient visit, 60-74 minutes 19 19 $261

In context: peer comparison

Among 29 peers in Brooklyn Hematology & Oncology Physician, average services per provider: 673. This provider delivers 8.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$537
Transactions
22
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 5 $109.78
Daiichi Sankyo INC. 4 $92.87
Janssen Biotech, INC. 2 $59.96
E.R. Squibb & Sons, L.L.C. 3 $58.32
Mirati Therapeutics, INC. 2 $48.21
Gilead Sciences, INC. 1 $34.82
Merck Sharp & Dohme LLC 1 $33.80
Shield Therapeutics INC 1 $30.61
Ipsen Biopharmaceuticals, INC 1 $24.78
Pfizer INC. 1 $22.94
Bayer Healthcare Pharmaceuticals INC. 1 $20.67

By nature of payment

Food and Beverage
$537

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
474
Patients
98
Total drug cost
$116,483
Drug Type Claims Patients Total cost
Hydroxyurea Generic 69 24 $2,070
Eliquis (Apixaban) Brand 65 18 $49,117
Letrozole Generic 60 17 $2,040
Anastrozole Generic 39 14 $1,192
Xarelto (Rivaroxaban) Brand 37 0 $25,087
Prednisone Generic 34 14 $404
Acyclovir Generic 32 0 $656
Anagrelide Hcl Generic 23 0 $14,949
Hydrocortisone Generic 23 11 $174
Furosemide Generic 18 0 $59

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alexander Losev's medical specialty?
Dr. Alexander Losev practices Hematology & Oncology Physician in Brooklyn, NY.
Where does Dr. Alexander Losev practice?
Dr. Alexander Losev practices at 2558 E 18Th St, Brooklyn, NY 112353518. Office phone: 7186160801.
What is Dr. Alexander Losev's NPI?
Dr. Alexander Losev's National Provider Identifier (NPI) is 1992732234, issued by NPPES.
Does Dr. Alexander Losev accept Medicare assignment?
Yes. Dr. Alexander Losev accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexander Losev commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.