Doctor profile · Federal record

Dr. Gene Ong, M.D.

Nephrology Physician (CMS: Nephrology) · Nephrology Physician · Las Vegas, NV

  • NPI 1659365286
  • Accepts Medicare
  • 41 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1581 Mount Mariah Dr Ste 150
Las Vegas, NV 891061506
(702) 851-7766
fax (702) 851-7760
Additional location
2450 Fire Mesa St Ste 110
Las Vegas, NV 891289034
(702) 853-0090
fax (702) 853-0096
Mailing address
2545 S Bruce St Ste 200
Las Vegas, NV 891691778

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
May 16, 2024
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State licenses (2)
Nevada #12481 · Texas #L1150
Medicaid (2)
TX #157244801 · NV #1659365286

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659365286. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,335
Distinct HCPCS
7
Medicare allowed
$205,612
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 688 214 $116
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 150 27 $351
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 127 106 $171
99215 Established patient office or other outpatient visit, 40-54 minutes 116 62 $166
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 107 34 $76
99214 Established patient office or other outpatient visit, 30-39 minutes 106 72 $116
90966 Home dialysis services per month (20 years or older) 41 13 $295

In context: peer comparison

Among 40 peers in Las Vegas Nephrology Physician, average services per provider: 232. This provider delivers 5.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,361
Transactions
109
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 11 $295.86
Amgen INC. 12 $239.70
Fresenius USA Marketing, INC. 15 $237.87
Otsuka America Pharmaceutical, INC. 11 $214.77
Vifor Pharma, INC. 14 $205.43
Travere Therapeutics, INC. 6 $186.11
Bayer Healthcare Pharmaceuticals INC. 13 $163.31
Boehringer Ingelheim Pharmaceuticals, INC. 9 $158.30
Mallinckrodt Hospital Products INC. 1 $146.19
Aurinia Pharma U.S., INC. 5 $104.08
Calliditas Therapeutics US INC. 3 $66.01
Opko Pharmaceuticals, LLC 3 $65.96
Akebia Therapeutics INC 2 $51.02
Daiichi Sankyo INC. 2 $43.28
GlaxoSmithKline, LLC. 2 $38.08

By nature of payment

Food and Beverage
$2,310
Travel and Lodging
$27
Education
$25

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,214
Patients
439
Total drug cost
$179,470
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 189 68 $1,195
Losartan Potassium Generic 166 66 $2,273
Lisinopril Generic 156 52 $1,133
Allopurinol Generic 108 36 $1,209
Farxiga (Dapagliflozin Propanediol) Brand 90 40 $98,562
Prazosin Hcl Generic 76 28 $5,721
Atorvastatin Calcium Generic 59 20 $631
Clonidine Hcl Generic 57 17 $650
Spironolactone Generic 53 17 $759
Carvedilol Generic 51 19 $501

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gene Ong's medical specialty?
Dr. Gene Ong practices Nephrology Physician in Las Vegas, NV.
Where does Dr. Gene Ong practice?
Dr. Gene Ong practices at 1581 Mount Mariah Dr Ste 150, Las Vegas, NV 891061506. Office phone: 7028517766.
What is Dr. Gene Ong's NPI?
Dr. Gene Ong's National Provider Identifier (NPI) is 1659365286, issued by NPPES.
Does Dr. Gene Ong accept Medicare assignment?
Yes. Dr. Gene Ong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gene Ong commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.