Physician Profile
Unclaimed ProfileAbout OR
Chi Mong Christopher Or, MD is a healthcare provider in Stanford, CA specializing in ophthalmology. According to Medicare claims data, Chi Mong cared for 1,596 Medicare patients across 2,045 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (650) 723-4000
- Email not available
Practice Locations
300 PASTEUR DR
Stanford, CA 94305
Procedures Most Often Billed to Medicare
2,045 services · 1,596 patients · 19 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
90 |
| Injection of drug into eye | Procedure | 67028 |
34 |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
15 |
| Imaging of retina | Treatment | 92134 |
395 |
| Established patient complete exam of visual system | Treatment | 92014 |
175 |
| Imaging of optic nerve | Treatment | 92133 |
150 |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
56 |
| Exam of visual field with extended testing | Treatment | 92083 |
45 |
| New patient complete exam of visual system | Treatment | 92004 |
42 |
| Exam of retinal blood vessels using a special camera after injection of a dye | Treatment | 92235 |
34 |
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 1
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 ophthalmology specialists in Stanford 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2015 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Or?
Dr. Or is an ophthalmology in Stanford, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
What is Dr. Or's address?
Dr. Or is listed at 300 PASTEUR DR, Stanford, CA 94305. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Or?
The number on file is (650) 723-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Or's NPI number?
Dr. Or's National Provider Identifier is 1639676000. 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. Or train?
Dr. Or attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Or been practicing?
Dr. Or has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Or perform?
According to Medicare billing data, Dr. Or performs procedures including removal of cataract with insertion of prosthetic lens, injection of drug into eye and removal of recurring cataract in lens capsule using a laser; provides treatments such as imaging of retina 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. Or confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Or. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.