Doctor profile · Federal record

Dr. Ron Gu, MD

Internal Medicine Physician · Hacienda Heights, CA

  • NPI 1851494215
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1850 S Azusa Ave, Suite 205
Hacienda Heights, CA 91745
(626) 964-2880
fax (626) 964-2834

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A37924
Medicaid
CA #00A379240

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1851494215. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
248
Distinct HCPCS
6
Medicare allowed
$20,036
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 60 45 $139
36415 Insertion of needle into vein for collection of blood sample 53 35 $8
G0444 Annual depression screening, 5 to 15 minutes 39 39 $21
99497 Advance care planning, first 30 minutes 38 38 $88
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 35 35 $140
99213 Established patient office or other outpatient visit, 20-29 minutes 23 16 $96

In context: peer comparison

Among 5 peers in Hacienda Heights Internal Medicine Physician, average services per provider: 334. This provider delivers 0.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$296
Transactions
12
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
Novo Nordisk INC 6 $132.28
Radius Health, INC. 1 $34.85
Lilly USA, LLC 1 $31.43
GlaxoSmithKline, LLC. 1 $27.48
Merck Sharp & Dohme LLC 1 $24.98
Amgen INC. 1 $24.94
AstraZeneca Pharmaceuticals Lp 1 $19.83

By nature of payment

Food and Beverage
$296

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
262
Patients
42
Total drug cost
$3,896
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 54 19 $864
Amlodipine Besylate Generic 40 12 $532
Losartan Potassium Generic 36 11 $891
Metformin Hcl ER (Metformin Hcl) Brand 28 0 $413
Tamsulosin Hcl Generic 21 0 $332
Metoprolol Succinate Generic 19 0 $428
Zolpidem Tartrate Generic 19 0 $55
Clopidogrel (Clopidogrel Bisulfate) Brand 17 0 $161
Lorazepam Generic 14 0 $70
Triamcinolone Acetonide Generic 14 0 $150

Frequently asked questions

Auto-generated from federal data
What is Dr. Ron Gu's medical specialty?
Dr. Ron Gu practices Internal Medicine Physician in Hacienda Heights, CA.
Where does Dr. Ron Gu practice?
Dr. Ron Gu practices at 1850 S Azusa Ave, Hacienda Heights, CA 91745. Office phone: 6269642880.
What is Dr. Ron Gu's NPI?
Dr. Ron Gu's National Provider Identifier (NPI) is 1851494215, issued by NPPES.
What procedures does Dr. Ron Gu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Annual depression screening, 5 to 15 minutes (HCPCS G0444). Source: CMS Medicare Physician & Other Practitioners file.