Provider Profile
Clifford J. Leong, O.D.
Unclaimed ProfileAbout Dr. Leong
Listed in the NPI registry as an optometrist, Clifford J. Leong, O.D. practices in Fremont, CA. Clifford graduated from State University of New York - State College Optometry in 2007. According to Medicare claims data, Clifford cared for 145 Medicare patients across 147 services. The services billed most often include established patient complete exam of visual system, photography of the retina, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
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
- (510) 744-2010
- Email not available
Practice Locations
39355 CALIFORNIA ST SUITE 103
Fremont, CA 94538
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
Cornea conditions
- Keratoconus
- Pterygium
Corneal issues
Eye conditions
Eye discomfort
Eye diseases
- Cataracts
- Diabetic retinopathy
- Glaucoma
- Macular degeneration
- Retinal Tear Symptoms
Eye infections
- Corneal ulcer
Eye inflammation
Eye injuries
- Corneal abrasion
- Foreign Object in Eye
Eye irritation
Eye surface issues
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
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 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
- Stye Removal
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
- Optical Coherence Tomography Scan
Minor procedures
- Amniotic Membrane Placement
- Tear Duct Plugs
Specialty lenses
Surgical evaluations
Tear duct procedures
Therapy
Urgent care
- Emergency Eye Care
- Foreign Object Removal from Eye
Vision correction
Procedures Most Often Billed to Medicare
147 services · 145 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient complete exam of visual system | Treatment | 92014 |
79 | As often as other peers in Optometrist |
| Photography of the retina | Treatment | 92250 |
52 | 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 |
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 7
Same specialty, same street address — most likely the same department or group.
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 Fremont 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at State University of New York - State College Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 2007 at State University of New York - State College Optometry 8
Providers who graduated from the same medical school in the same year.
Also performs Established patient complete exam of visual system 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Clifford J. Leong's specialty?
Clifford J. Leong is an optometrist in Fremont, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Clifford J. Leong?
Clifford J. Leong is listed at 39355 California St Suite 103, Fremont, CA 94538. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Clifford J. Leong?
The number on file is (510) 744-2010. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Clifford J. Leong's NPI number?
Clifford J. Leong's National Provider Identifier is 1851585624. 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
What is Clifford J. Leong's education?
Clifford J. Leong attended State University of New York - State College Optometry, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How long has Clifford J. Leong been practicing?
Clifford J. Leong has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What is Clifford J. Leong known for?
According to Medicare billing data, Clifford J. Leong provides treatments such as established patient complete exam of visual system and photography of the retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Clifford J. Leong confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Clifford J. Leong. 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.