Doctor profile · Federal record

Dr. Leslie Klein, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Scottsdale, AZ

  • NPI 1619101771
  • Accepts Medicare
  • MIPS 93.6 / 100 · 2023
  • 17 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8880 E Desert Cove Ave
Scottsdale, AZ 852606746
(480) 314-6670
fax (480) 257-1997
Mailing address
Po Box 6423
Chandler, AZ 852466423

Credentials & registration

NPPES · NUCC
NPI registered
May 2009 — 17 yrs on file
Profile last updated
November 15, 2022
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Arizona #50658
Medicaid
AZ #038068

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619101771. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
89,342
Distinct HCPCS
10
Medicare allowed
$889,480
HCPCS Description Services Patients Avg allowed
J1439 Injection, ferric carboxymaltose, 1 mg 34,500 29 $1
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 14,875 146 $0
J0881 Injection, darbepoetin alfa, 1 microgram (non-esrd use) 13,200 14 $3
Q5110 Injection, filgrastim-aafi, biosimilar, (nivestym), 1 microgram 8,280 12 $0
J9271 Injection, pembrolizumab, 1 mg 4,200 12 $54
J0897 Injection, denosumab, 1 mg 3,960 23 $23
J1453 Injection, fosaprepitant, 1 mg 3,300 13 $0
J1100 Injection, dexamethasone sodium phosphate, 1 mg 1,094 43 $0
J2469 Injection, palonosetron hcl, 25 mcg 740 33 $1
J0640 Injection, leucovorin calcium, per 50 mg 577 13 $4

In context: peer comparison

Among 28 peers in this city , average services per provider: 963. This provider delivers 93× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,271
Transactions
85
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 18 $263.19
E.R. Squibb & Sons, L.L.C. 16 $232.69
PFIZER INC. 11 $206.02
Merck Sharp & Dohme LLC 4 $117.89
Genentech USA, Inc. 3 $92.82
AstraZeneca Pharmaceuticals LP 3 $87.98
ARRAY BIOPHARMA INC 4 $87.77
Novartis Pharmaceuticals Corporation 4 $85.48
Gilead Sciences, Inc. 4 $82.78
GENZYME CORPORATION 3 $78.51
Incyte Corporation 3 $75.43
Exelixis Inc. 3 $73.26
SpringWorks Therapeutics, Inc. 3 $71.11
Rigel Pharmaceuticals, Inc. 3 $68.16
GlaxoSmithKline, LLC. 3 $57.13

By nature of payment

Food and Beverage
$2,271

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
901
Patients
264
Total drug cost
$890,838
Drug Type Claims Patients Total cost
Anastrozole Generic 211 64 $4,713
Alendronate Sodium Generic 83 26 $929
Eliquis (Apixaban) Brand 72 21 $56,854
Gabapentin Generic 66 26 $1,020
Xarelto (Rivaroxaban) Brand 64 14 $60,903
Dexamethasone Generic 57 26 $1,123
Acyclovir Generic 53 13 $605
Prochlorperazine Maleate Generic 44 24 $961
Tamoxifen Citrate Generic 44 14 $1,678
Ondansetron Odt (Ondansetron) Brand 43 25 $1,448

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Leslie Klein's medical specialty?
Dr. Leslie Klein practices Hematology & Oncology Physician in Scottsdale, AZ.
Where does Dr. Leslie Klein practice?
Dr. Leslie Klein practices at 8880 E Desert Cove Ave, Scottsdale, AZ 852606746. Office phone: 4803146670.
What is Dr. Leslie Klein's NPI?
Dr. Leslie Klein's National Provider Identifier (NPI) is 1619101771, issued by NPPES.
Does Dr. Leslie Klein accept Medicare assignment?
Yes. Dr. Leslie Klein accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Leslie Klein commonly perform?
Top Medicare-reported procedures in 2023: Injection, ferric carboxymaltose, 1 mg (HCPCS J1439); Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Injection, darbepoetin alfa, 1 microgram (non-esrd use) (HCPCS J0881). Source: CMS Medicare Physician & Other Practitioners file.