Doctor profile · Federal record
Dr. Thanh-Lan Quan, MD
Ophthalmology Physician (CMS: Ophthalmology) · Westminster, CA
- NPI 1831133511
- Accepts Medicare
- MIPS 30.0 / 100 · 2023
- 37 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
10362 Bolsa Ave, Ste 201
Westminster, CA 92683
(714) 531-4804
fax (714) 531-8232
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- April 8, 2008
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State license (1)
- California #G69821
- Medicaid
- CA #00G698211
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831133511. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,953
Distinct HCPCS
10
Medicare allowed
$457,977
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92012 |
Established patient problem focused exam of visual system | 1,098 | 614 | $101 | |
92014 |
Established patient complete exam of visual system | 857 | 844 | $141 | |
92133 |
Imaging of optic nerve | 489 | 473 | $41 | |
92083 |
Exam of visual field with extended testing | 415 | 384 | $71 | |
92020 |
Exam of the internal drainage system of eye | 212 | 191 | $31 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 152 | 107 | $98 | |
92136 |
Measurement of corneal curvature and depth of eye | 138 | 113 | $46 | |
66984 |
Removal of cataract with insertion of prosthetic lens | 113 | 90 | $589 | |
92134 |
Imaging of retina | 105 | 100 | $45 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 78 | 76 | $139 |
In context: peer comparison
Among 6 peers in Westminster Ophthalmology Physician, average services per provider: 251. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$1,869
Transactions
69
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bausch & Lomb Americas INC. | 25 | $751.28 | |
| Oyster Point Pharma, INC. | 11 | $399.93 | |
| Alcon Vision LLC | 13 | $213.26 | |
| Abbvie INC. | 8 | $152.23 | |
| Tarsus Pharmaceuticals, INC. | 8 | $150.66 | |
| Lilly USA, LLC | 1 | $116.75 | |
| Mallinckrodt Hospital Products INC. | 1 | $35.47 | |
| Sun Pharmaceutical Industries INC. | 1 | $34.34 | |
| Amgen INC. | 1 | $14.90 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
7,341
Patients
1,939
Total drug cost
$3,377,736
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Lumigan (Bimatoprost) | Brand | 1,090 | 218 | $508,000 |
| Restasis (Cyclosporine) | Brand | 1,021 | 257 | $1,173,672 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 976 | 225 | $30,762 |
| Latanoprost | Generic | 531 | 141 | $11,530 |
| Vyzulta (Latanoprostene Bunod) | Brand | 498 | 95 | $213,646 |
| Xiidra (Lifitegrast) | Brand | 479 | 126 | $490,837 |
| Alphagan P (Brimonidine Tartrate) | Brand | 375 | 66 | $161,022 |
| Cyclosporine | Generic | 375 | 109 | $190,210 |
| Azelastine Hcl | Generic | 354 | 115 | $9,370 |
| Rhopressa (Netarsudil Mesylate) | Brand | 340 | 68 | $171,455 |
Frequently asked questions
What is Dr. Thanh-Lan Quan's medical specialty?
Dr. Thanh-Lan Quan practices Ophthalmology Physician in Westminster, CA.
Where does Dr. Thanh-Lan Quan practice?
Dr. Thanh-Lan Quan practices at 10362 Bolsa Ave, Westminster, CA 92683. Office phone: 7145314804.
What is Dr. Thanh-Lan Quan's NPI?
Dr. Thanh-Lan Quan's National Provider Identifier (NPI) is 1831133511, issued by NPPES.
Does Dr. Thanh-Lan Quan accept Medicare assignment?
Yes. Dr. Thanh-Lan Quan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thanh-Lan Quan 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); Imaging of optic nerve (HCPCS 92133). Source: CMS Medicare Physician & Other Practitioners file.