Provider Profile
Mary M. Liao, O.D.
Unclaimed ProfileAbout Dr. Liao
Mary M. Liao, O.D. is an optometrist practicing in Oxnard, CA. Mary trained at Southern College of Optometry, graduating in 2000. According to Medicare claims data, Mary cared for 1,302 Medicare patients across 1,444 services. The services billed most often include established patient problem focused exam of visual system, established patient complete exam of visual system, and exam of visual field with extended testing.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (805) 983-0700
- Email not available
Practice Locations
1700 N ROSE AVE SUITE 200
Oxnard, CA 93030
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
- Astigmatism
- Dry eye
- Nearsightedness
- Pink eye
- Presbyopia
Contact lens issues
- Contact Lens Intolerance
Cornea conditions
- Keratoconus
- Pterygium
Corneal issues
- Corneal Neovascularization
- Eye Sunburn
Eye conditions
- Broken Blood Vessel in Eye
Eye discomfort
- Burning Eyes
- Discharge from Eye
- Red Eyes
Eye diseases
- Cataracts
- Diabetic retinopathy
- Glaucoma
- Macular degeneration
- Retinal Tear Symptoms
Eye infections
- Corneal ulcer
Eye inflammation
- Iritis
Eye injuries
- Corneal abrasion
- Foreign Object in Eye
Eye irritation
- Eye Allergies
- Eye Pain
- Watery Eyes
Eye surface issues
- Yellow Bump on Eye
Eyelid conditions
- Blepharitis
- Drooping eyelid
- Eye Twitching
- Stye
Eyelid issues
- Chalazion
- Ectropion
- Entropion
- Eyelash Lice or Dandruff
Pediatric eye conditions
- Eye misalignment (strabismus)
- Lazy eye (amblyopia)
Pupil issues
- Unequal Pupil Sizes
Tear duct issues
- Blocked tear duct
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 fitting
- Dry eye treatment
- Eye exam
- Glasses prescription
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
- Autologous Serum Eye Drops Fitting
- IPL for Dry Eye
- LipiFlow Treatment
- Meibomian Gland Expression
Examinations
- Comprehensive medical eye examination
- Diabetic Eye Exam
- DMV Vision Test
- Low Vision Assessment
- Pediatric Eye Exam
Eyelid care
- Eyelid Deep Cleaning
Eyelid treatments
- Stye Removal
General exams
- School Vision Screening Follow-Up
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
- Optical Coherence Tomography Scan
Minor procedures
- Amniotic Membrane Placement
- Tear Duct Plugs
Specialty lenses
- Ortho-K
- RGP Contact Lens Fitting
- Scleral Lens Fitting
Surgical evaluations
- Cataract Evaluation
- Corneal Cross-Linking Evaluation
- LASIK Consultation
- PRK Evaluation
Tear duct procedures
- Flushing of Tear Ducts
Therapy
- Sports Vision Training
- Vision Therapy
Urgent care
- Emergency Eye Care
- Foreign Object Removal from Eye
Vision correction
- Myopia Management
Procedures Most Often Billed to Medicare
1,444 services · 1,302 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
20 | As often as other peers in Optometrist |
| Established patient problem focused exam of visual system | Treatment | 92012 |
427 | More than most peers in Optometrist |
| Established patient complete exam of visual system | Treatment | 92014 |
359 | More than most peers in Optometrist |
| Exam of visual field with extended testing | Treatment | 92083 |
210 | More than most peers in Optometrist |
| Imaging of optic nerve | Treatment | 92133 |
189 | More than most peers in Optometrist |
| Imaging of retina | Treatment | 92134 |
129 | More often than most peers in Optometrist |
| New patient complete exam of visual system | Treatment | 92004 |
62 | More often than most peers in Optometrist |
| Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | Office visit | 99211 |
29 | As often as other 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 |
19 | 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 Oxnard 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Southern College of Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 2000 at Southern College of Optometry 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound scan of cornea to determine thickness 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Mary M. Liao specialize in?
Mary M. Liao is an optometrist in Oxnard, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mary M. Liao located?
Mary M. Liao is listed at 1700 N Rose Ave Suite 200, Oxnard, CA 93030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mary M. Liao's phone number?
The number on file is (805) 983-0700. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Mary M. Liao's NPI number?
Mary M. Liao's National Provider Identifier is 1992858526. 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 Mary M. Liao train?
Mary M. Liao attended Southern College of Optometry, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How long has Mary M. Liao been practicing?
Mary M. Liao has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What does Mary M. Liao do most often?
According to Medicare billing data, Mary M. Liao performs imaging including ultrasound scan of cornea to determine thickness; provides treatments such as established patient problem focused exam of visual system 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 Mary M. Liao confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mary M. Liao. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.