Doctor profile · Federal record
Dr. Gerald Chan, O.D.
Optometrist (CMS: Optometry) · Grass Valley, CA
- NPI 1275525644
- Accepts Medicare
- 51 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
360 Sierra College Dr, Suite 100
Grass Valley, CA 959455088
(530) 273-3190
fax (530) 273-5541
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- August 19, 2008
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- California #5832 T
- Medicaid
- CA #YYY49206Y
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275525644. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
232
Distinct HCPCS
6
Medicare allowed
$16,478
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92250 |
Photography of the retina | 87 | 87 | $39 | |
92014 |
Established patient complete exam of visual system | 46 | 46 | $132 | |
83861 |
Microfluid analysis of tears | 30 | 11 | $22 | |
92012 |
Established patient problem focused exam of visual system | 28 | 18 | $94 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 24 | 24 | $131 | |
92133 |
Imaging of optic nerve | 17 | 11 | $36 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 111. This provider delivers 2.1× the peer median.Open Payments
Industry payments received
All-time total
$17
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| CooperVision Inc. | 1 | $17.23 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
18
Patients
0
Total drug cost
$566
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 18 | 0 | $566 |
Frequently asked questions
What is Dr. Gerald Chan's medical specialty?
Dr. Gerald Chan practices Optometrist in Grass Valley, CA.
Where does Dr. Gerald Chan practice?
Dr. Gerald Chan practices at 360 Sierra College Dr, Grass Valley, CA 959455088. Office phone: 5302733190.
What is Dr. Gerald Chan's NPI?
Dr. Gerald Chan's National Provider Identifier (NPI) is 1275525644, issued by NPPES.
Does Dr. Gerald Chan accept Medicare assignment?
Yes. Dr. Gerald Chan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gerald Chan commonly perform?
Top Medicare-reported procedures in 2023: Photography of the retina (HCPCS 92250); Established patient complete exam of visual system (HCPCS 92014); Microfluid analysis of tears (HCPCS 83861). Source: CMS Medicare Physician & Other Practitioners file.