Are you William J. Shaffer, O.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 340 S 5Th St, Oxnard, CA 93030
About Dr. Shaffer
Based in Oxnard, CA, William J. Shaffer, O.D. is listed in the NPI registry under optometry. William graduated from Southern College of Optometry in 1973. William is also listed as specializing in optometrist. Medicare claims data shows William provided 317 services to 307 patients. The services billed most often include extended exam of the back part of the eye with retinal drawing, imaging of optic nerve, and new patient complete exam of visual system. NPI 1457451031 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
- (805) 487-6363
- Email not available
Practice Locations
340 S 5TH ST
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
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
317 services · 307 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Extended exam of the back part of the eye with retinal drawing | Treatment | 92201 |
105 | More often than most peers in Optometry |
| Imaging of optic nerve | Treatment | 92133 |
66 | More often than most peers in Optometry |
| New patient complete exam of visual system | Treatment | 92004 |
62 | More often than most peers in Optometry |
| Established patient complete exam of visual system | Treatment | 92014 |
51 | As often as other peers in Optometry |
| Established patient problem focused exam of visual system | Treatment | 92012 |
20 | Less often than most peers in Optometry |
| Exam of visual field with extended testing | Treatment | 92083 |
13 | Less often than most peers in Optometry |
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.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other optometry specialists in Oxnard 8
Same specialty, same city.
Trained at Southern College of Optometry 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1973 at Southern College of Optometry 7
Providers who graduated from the same medical school in the same year.
Also performs Extended exam of the back part of the eye with retinal drawing 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does William J. Shaffer specialize in?
William J. Shaffer is an optometry in Oxnard, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is William J. Shaffer located?
William J. Shaffer is listed at 340 S 5Th St, Oxnard, CA 93030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is William J. Shaffer's phone number?
The number on file is (805) 487-6363. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for William J. Shaffer?
William J. Shaffer's National Provider Identifier is 1457451031. 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 William J. Shaffer train?
William J. Shaffer attended Southern College of Optometry, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
How much experience does William J. Shaffer have?
William J. Shaffer has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
What does William J. Shaffer do most often?
According to Medicare billing data, William J. Shaffer provides treatments such as extended exam of the back part of the eye with retinal drawing and imaging of optic nerve. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is William J. Shaffer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by William J. Shaffer. If this is you, claiming it is free.
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