Doctor profile · Federal record

Dr. Leslie Busby, MD

Hematology & Oncology Physician (CMS: Medical Oncology) · Boulder, CO

  • NPI 1952385502
  • Accepts Medicare
  • MIPS 81.5 / 100 · 2023
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4715 Arapahoe Ave
Boulder, CO 803031385
(303) 385-2000
fax (303) 444-1839
Mailing address
7951 E Maplewood Ave, Ste 300
Greenwood Village, CO 80111

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
July 15, 2011
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Colorado #40330
Medicaid
CO #84672331

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1952385502. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
49,409
Distinct HCPCS
10
Medicare allowed
$1,090,543
HCPCS Description Services Patients Avg allowed
Q0138 Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) 9,690 16 $0
J1756 Injection, iron sucrose, 1 mg 8,900 26 $0
J9271 Injection, pembrolizumab, 1 mg 8,200 14 $54
J1453 Injection, fosaprepitant, 1 mg 7,200 26 $0
J9144 Injection, daratumumab, 10 mg and hyaluronidase-fihj 6,840 15 $48
J1568 Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg 3,290 16 $43
J1100 Injection, dexamethasone sodium phosphate, 1 mg 1,306 48 $0
J2469 Injection, palonosetron hcl, 25 mcg 750 33 $1
J1626 Injection, granisetron hydrochloride, 100 mcg 453 25 $0
99214 Established patient office or other outpatient visit, 30-39 minutes 339 140 $128

In context: peer comparison

Among 3 peers in Boulder Hematology & Oncology Physician, average services per provider: 1,184. This provider delivers 42× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$338
Transactions
6
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Adaptive Biotechnologies Corporation 1 $155.84
Blueprint Medicines Corporation 1 $56.91
Janssen Biotech, INC. 1 $46.12
Gilead Sciences, INC. 1 $39.83
Abbvie INC. 1 $20.15
Pfizer INC. 1 $18.84

By nature of payment

Food and Beverage
$338

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
510
Patients
87
Total drug cost
$1,168,852
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 63 14 $45,125
Anastrozole Generic 58 17 $2,119
Acyclovir Generic 53 17 $1,584
Xarelto (Rivaroxaban) Brand 53 0 $51,741
Hydroxyurea Generic 44 12 $2,644
Gabapentin Generic 34 12 $1,058
Jakafi (Ruxolitinib Phosphate) Brand 28 0 $507,180
Prednisone Generic 26 0 $351
Warfarin Sodium Generic 25 0 $155
Levothyroxine Sodium Generic 23 0 $301

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Leslie Busby's medical specialty?
Dr. Leslie Busby practices Hematology & Oncology Physician in Boulder, CO.
Where does Dr. Leslie Busby practice?
Dr. Leslie Busby practices at 4715 Arapahoe Ave, Boulder, CO 803031385. Office phone: 3033852000.
What is Dr. Leslie Busby's NPI?
Dr. Leslie Busby's National Provider Identifier (NPI) is 1952385502, issued by NPPES.
Does Dr. Leslie Busby accept Medicare assignment?
Yes. Dr. Leslie Busby accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Leslie Busby commonly perform?
Top Medicare-reported procedures in 2023: Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) (HCPCS Q0138); Injection, iron sucrose, 1 mg (HCPCS J1756); Injection, pembrolizumab, 1 mg (HCPCS J9271). Source: CMS Medicare Physician & Other Practitioners file.