Doctor profile · Federal record

Dr. Regina Leoni, M.D.

Family Medicine Physician (CMS: Family Practice) · Rancho Cucamonga, CA

  • NPI 1568573582
  • Accepts Medicare
  • 25 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8599 Haven Ave, Suite 106
Rancho Cucamonga, CA 917304849
(909) 989-2273
fax (909) 989-6999
Mailing address
155 W Monterrey Dr
Claremont, CA 917111741

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
October 31, 2011
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
California #A83418

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568573582. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
145
Distinct HCPCS
3
Medicare allowed
$15,001
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 76 47 $131
99213 Established patient office or other outpatient visit, 20-29 minutes 58 39 $84
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 11 11 $15

In context: peer comparison

Among 18 peers in Rancho Cucamonga Family Medicine Physician, average services per provider: 139. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$703
Transactions
26
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 2 $140.10
Lilly USA, LLC 6 $125.12
Astellas Pharma US INC 4 $102.15
AstraZeneca Pharmaceuticals Lp 5 $100.17
Novo Nordisk INC 3 $81.63
Lundbeck LLC 2 $54.43
Boehringer Ingelheim Pharmaceuticals, INC. 2 $50.88
Amgen INC. 1 $25.85
Pfizer INC. 1 $23.06

By nature of payment

Food and Beverage
$703

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,933
Patients
577
Total drug cost
$32,532
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 235 67 $2,244
Levothyroxine Sodium Generic 186 53 $4,488
Alendronate Sodium Generic 185 50 $2,518
Atorvastatin Calcium Generic 180 57 $2,847
Rosuvastatin Calcium Generic 156 48 $6,032
Hydrochlorothiazide Generic 117 36 $580
Lisinopril Generic 116 32 $1,542
Metformin Hcl Generic 110 30 $1,623
Omeprazole Generic 109 32 $2,004
Tramadol Hcl Generic 106 33 $574

Frequently asked questions

Auto-generated from federal data
What is Dr. Regina Leoni's medical specialty?
Dr. Regina Leoni practices Family Medicine Physician in Rancho Cucamonga, CA.
Where does Dr. Regina Leoni practice?
Dr. Regina Leoni practices at 8599 Haven Ave, Rancho Cucamonga, CA 917304849. Office phone: 9099892273.
What is Dr. Regina Leoni's NPI?
Dr. Regina Leoni's National Provider Identifier (NPI) is 1568573582, issued by NPPES.
Does Dr. Regina Leoni accept Medicare assignment?
Yes. Dr. Regina Leoni accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Regina Leoni commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000). Source: CMS Medicare Physician & Other Practitioners file.