Doctor profile · Federal record
Dr. Winson Ong, O.D.
Optometrist (CMS: Optometry) · Brentwood, CA
- NPI 1821132143
- Accepts Medicare
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3840 Balfour RD, Suite A
Brentwood, CA 945131641
(925) 513-0323
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- July 28, 2014
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- California #11938T
- Medicaid
- CA #SD0119381
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821132143. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
176
Distinct HCPCS
6
Medicare allowed
$18,549
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92012 |
Established patient problem focused exam of visual system | 50 | 26 | $112 | |
92014 |
Established patient complete exam of visual system | 48 | 48 | $157 | |
92250 |
Photography of the retina | 41 | 40 | $46 | |
92133 |
Imaging of optic nerve | 14 | 13 | $43 | |
92083 |
Exam of visual field with extended testing | 12 | 12 | $80 | |
92004 |
New patient complete exam of visual system | 11 | 11 | $177 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 33. This provider delivers 5.3× the peer median.Open Payments
Industry payments received
All-time total
$644
Transactions
8
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Alcon Vision LLC | 3 | $295.91 | |
| Bausch & Lomb Americas Inc. | 2 | $248.58 | |
| CooperVision Inc. | 2 | $52.89 | |
| Optos, Inc. | 1 | $46.20 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
81
Patients
11
Total drug cost
$10,791
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 37 | 11 | $996 |
| Timolol Maleate | Generic | 17 | 0 | $300 |
| Brimonidine Tartrate | Generic | 14 | 0 | $507 |
| Lumigan (Bimatoprost) | Brand | 13 | 0 | $8,987 |
Frequently asked questions
What is Dr. Winson Ong's medical specialty?
Dr. Winson Ong practices Optometrist in Brentwood, CA.
Where does Dr. Winson Ong practice?
Dr. Winson Ong practices at 3840 Balfour RD, Brentwood, CA 945131641. Office phone: 9255130323.
What is Dr. Winson Ong's NPI?
Dr. Winson Ong's National Provider Identifier (NPI) is 1821132143, issued by NPPES.
Does Dr. Winson Ong accept Medicare assignment?
Yes. Dr. Winson Ong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Winson Ong commonly perform?
Top Medicare-reported procedures in 2023: Established patient problem focused exam of visual system (HCPCS 92012); Established patient complete exam of visual system (HCPCS 92014); Photography of the retina (HCPCS 92250). Source: CMS Medicare Physician & Other Practitioners file.