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Edit this profileAt a glance
- 27420 Tourney Rd, Ste 100, Valencia, CA 91355
About Dr. Guan
Listed in the NPI registry as an optometrist, Lisa Guan, OD practices in Valencia, CA. Lisa graduated from New England College of Optometry in 2010. According to Medicare claims data, Lisa cared for 1,055 Medicare patients across 1,219 services. The services billed most often include ct scan of cornea, established patient complete exam of visual system, and established patient problem focused exam of visual system. NPI 1831403476 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
- (661) 259-3937
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
27420 TOURNEY RD STE 100
Valencia, CA 91355
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
1,219 services · 1,055 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Closure of tear duct opening using plug | Procedure | 68761 |
41 | As often as other peers in Optometrist |
| Ct scan of cornea | Treatment | 92025 |
397 | More than most peers in Optometrist |
| Established patient complete exam of visual system | Treatment | 92014 |
263 | More often than most peers in Optometrist |
| Established patient problem focused exam of visual system | Treatment | 92012 |
116 | More often than most peers in Optometrist |
| Photography of the retina | Treatment | 92250 |
96 | More often than most peers in Optometrist |
| Imaging of retina | Treatment | 92134 |
53 | As often as other peers in Optometrist |
| Imaging of optic nerve | Treatment | 92133 |
41 | As often as other peers in Optometrist |
| New patient complete exam of visual system | Treatment | 92004 |
35 | As often as other peers in Optometrist |
| Exam of visual field with extended testing | Treatment | 92083 |
19 | Less often than most peers in Optometrist |
| Exam to measure eye deviation and range of motion | Treatment | 92060 |
16 | 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.
Other optometrists at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
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.
More connections — 31 related providers in 4 groups
Other optometrists in Valencia 7
Same specialty, same city.
Trained at New England College of Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 2010 at New England College of Optometry 8
Providers who graduated from the same medical school in the same year.
Also performs Closure of tear duct opening using plug 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Guan specialize in?
Dr. Guan is an optometrist in Valencia, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Guan located?
Dr. Guan is listed at 27420 Tourney Rd Ste 100, Valencia, CA 91355. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Guan's phone number?
The number on file is (661) 259-3937. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Guan's NPI number?
Dr. Guan's National Provider Identifier is 1831403476. 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. Guan go to medical school?
Dr. Guan attended New England College of Optometry, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Guan been practicing?
Dr. Guan has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Guan do most often?
According to Medicare billing data, Dr. Guan performs procedures including closure of tear duct opening using plug; provides treatments such as ct scan of cornea and established patient complete exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Guan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Guan. If this is you, claiming it is free.
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