Provider Profile
Kathy Ong, O.D. is an optometrist based in San Rafael, CA. Medicare claims data shows Kathy provided 35 services to 35 patients. The services billed most often include new patient complete exam of visual system and established patient complete exam of visual system.
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.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1127 4TH ST SUITE A
San Rafael, CA 94901
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.
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
Most searched procedures
Contact lens exams
Dry eye treatments
Examinations
Eyelid care
Eyelid treatments
General exams
Glasses and eyewear
Imaging & tests
Imaging and scans
Minor procedures
Specialty lenses
Surgical evaluations
Tear duct procedures
Therapy
Urgent care
Vision correction
35 services · 35 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| New patient complete exam of visual system | Treatment | 92004 |
22 | As often as other peers in Optometrist |
| Established patient complete exam of visual system | Treatment | 92014 |
13 | 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.
Kathy Ong is an optometrist in San Rafael, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Kathy Ong is listed at 1127 4Th St Suite A, San Rafael, CA 94901. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (415) 295-7811. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Kathy Ong's National Provider Identifier is 1609038629. 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
Kathy Ong attended Other, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
Kathy Ong has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Kathy Ong provides treatments such as new patient complete exam of visual system and established patient complete exam of visual system. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Kathy Ong. 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.