Physician Profile
Unclaimed ProfileAbout MARK
Based in Sunnyvale, CA, David Bruce Mark, M.D. is listed in the NPI registry under ophthalmology. David graduated from Stanford University School of Medicine in 1976.
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
Common questions
What is Dr. Mark's specialty?
Dr. Mark is an ophthalmology in Sunnyvale, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where can I find Dr. Mark?
Dr. Mark is listed at 1010 W FREMONT AVE STE 200, Sunnyvale, CA 94087. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Mark?
The number on file is (408) 739-6200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Mark's NPI number?
Dr. Mark's National Provider Identifier is 1912900218. 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 Dr. Mark's medical education?
Dr. Mark attended Stanford University School of Medicine, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mark been practising?
Dr. Mark has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Mark known for?
According to Medicare billing data, Dr. Mark performs procedures including removal of recurring cataract in lens capsule using a laser; provides treatments such as established patient complete exam of visual system and established patient problem focused 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. Mark confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mark. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (408) 739-6200
- Email not available
Practice Locations
1010 W FREMONT AVE STE 200
Sunnyvale, CA 94087
Procedures Most Often Billed to Medicare
622 services · 565 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
12 |
| Established patient complete exam of visual system | Treatment | 92014 |
281 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
124 |
| Imaging of optic nerve | Treatment | 92133 |
58 |
| Exam of visual field with extended testing | Treatment | 92083 |
40 |
| New patient complete exam of visual system | Treatment | 92004 |
22 |
| Imaging of retina | Treatment | 92134 |
19 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
66 |
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 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 Sunnyvale 8
Same specialty, same city.
Trained at Stanford University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1976 at Stanford University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of recurring cataract in lens capsule using a laser 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.