Doctor profile · Federal record
Dr. Mary Leong, O.D.
Optometrist (CMS: Optometry) · Antioch, CA
- NPI 1003968249
- Accepts Medicare
- 24 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4501 Sand Creek RD
Antioch, CA 945318687
(925) 813-3280
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- January 3, 2022
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- California #11914T
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003968249. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
13
Distinct HCPCS
1
Medicare allowed
$1,039
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92083 |
Exam of visual field with extended testing | 13 | 12 | $80 |
In context: peer comparison
Among 3 peers in Antioch Optometrist, average services per provider: 28. This provider delivers 0.5× the peer median.Open Payments
Industry payments received
All-time total
$615
Transactions
5
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Alcon Vision LLC | 2 | $262.76 | |
| Bausch & Lomb Americas INC. | 2 | $248.58 | |
| Oyster Point Pharma, INC. | 1 | $103.35 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
13
Patients
0
Total drug cost
$312
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 13 | 0 | $312 |
Frequently asked questions
What is Dr. Mary Leong's medical specialty?
Dr. Mary Leong practices Optometrist in Antioch, CA.
Where does Dr. Mary Leong practice?
Dr. Mary Leong practices at 4501 Sand Creek RD, Antioch, CA 945318687. Office phone: 9258133280.
What is Dr. Mary Leong's NPI?
Dr. Mary Leong's National Provider Identifier (NPI) is 1003968249, issued by NPPES.
Does Dr. Mary Leong accept Medicare assignment?
Yes. Dr. Mary Leong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Leong commonly perform?
Top Medicare-reported procedures in 2023: Exam of visual field with extended testing (HCPCS 92083). Source: CMS Medicare Physician & Other Practitioners file.