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Edit this profileAt a glance
- 122 la Casa Via, #222, Walnut Creek, CA 94598
About Dr. Chan
Listed in the NPI registry as an optometrist, Lina Chan, OD practices in Walnut Creek, CA. Lina graduated from University of California - School of Optometry in 1999. According to Medicare claims data, Lina cared for 199 Medicare patients across 228 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, exam of visual field with extended testing, and imaging of optic nerve. NPI 1659358042 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (925) 947-0888
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
122 LA CASA VIA #222
Walnut Creek, CA 94598
Conditions Commonly Evaluated or Treated
Within Optometry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Contact lens issues
Cornea conditions
Corneal issues
Eye conditions
Eye discomfort
Eye diseases
Eye infections
Eye inflammation
Eye injuries
Eye irritation
Eye surface issues
Eyelid conditions
Eyelid issues
Pediatric eye conditions
Pupil issues
Tear duct issues
Vision changes
- Blurry Vision
- Color Blindness
- Distorted Vision
- Double Vision
- Eye Floaters and Flashes
- Eye Strain
- Farsightedness
- Halos Around Lights
- Light Sensitivity
- Night Blindness
- Posterior vitreous detachment
- Tunnel Vision
- Visual Migraines
Procedures & services
Most searched procedures
Contact lens exams
- Bifocal or Multifocal Contact Lens Fitting
- Contact Lens Training
- Plano (Non-Prescription) Colored Contact Lens Exam
- Toric Contact Lens Fitting
Dry eye treatments
Examinations
- Comprehensive medical eye examination
- Diabetic Eye Exam
- DMV Vision Test
- Low Vision Assessment
- Pediatric Eye Exam
Eyelid care
Eyelid treatments
General exams
Glasses and eyewear
- Blue Light Glasses Consultation
- Eyeglass Frame Adjustment and Repair
- Prescription Sunglasses Consultation
- Prism Eyeglasses Fitting
Imaging & tests
- Color Vision Testing
- Corneal topography
- Coronary optical coherence tomography
- Eye-pressure measurement
- Pachymetry
- Retinal photography
- Visual Field Test
Imaging and scans
Minor procedures
Specialty lenses
Surgical evaluations
Tear duct procedures
Therapy
Urgent care
Vision correction
Procedures Most Often Billed to Medicare
228 services · 199 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Exam of visual field with extended testing | Treatment | 92083 |
32 | As often as other peers in Optometrist |
| Imaging of optic nerve | Treatment | 92133 |
27 | As often as other peers in Optometrist |
| Imaging of retina | Treatment | 92134 |
22 | Less often than most peers in Optometrist |
| Established patient complete exam of visual system | Treatment | 92014 |
15 | Less often than most peers in Optometrist |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
110 | More often than most peers in Optometrist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
22 | Less often than most peers in Optometrist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other optometrists in Walnut Creek 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of California - School of Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at University of California - School of Optometry 8
Providers who graduated from the same medical school in the same year.
Also performs Exam of visual field with extended testing 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Chan specialize in?
Dr. Chan is an optometrist in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Chan located?
Dr. Chan is listed at 122 la Casa Via #222, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Chan's phone number?
The number on file is (925) 947-0888. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Chan's NPI number?
Dr. Chan's National Provider Identifier is 1659358042. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Chan go to medical school?
Dr. Chan attended University of California - School of Optometry, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Chan been practicing?
Dr. Chan has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Chan do most often?
According to Medicare billing data, Dr. Chan provides treatments such as exam of visual field with extended testing and imaging of optic nerve, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Chan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chan. If this is you, claiming it is free.
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