Are you David B. Mark, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 1010 W Fremont Ave, Ste 200, Sunnyvale, CA 94087
About Dr. Mark
Based in Sunnyvale, CA, David B. Mark, M.D. is listed in the NPI registry under ophthalmology. David graduated from Stanford University School of Medicine in 1976. According to Medicare claims data, David cared for 565 Medicare patients across 622 services. The services billed most often include established patient complete exam of visual system, established patient problem focused exam of visual system, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1912900218 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
- (408) 739-6200
- Email not available
Practice Locations
1010 W FREMONT AVE STE 200
Sunnyvale, CA 94087
Conditions Commonly Evaluated or Treated
Within Ophthalmology 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
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
Eye injuries
Inflammation, neurologic, and orbit
Retina & vitreous
Procedures & services
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
622 services · 565 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
12 | Less often than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
281 | As often as other peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
124 | As often as other peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
58 | Less often than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
40 | Less often than most peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
22 | Less often than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
19 | Less often than most peers in Ophthalmology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
66 | As often as other peers in Ophthalmology |
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 eye doctors 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.
Common questions
What is David B. Mark's specialty?
David B. Mark is an eye doctor in Sunnyvale, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where can I find David B. Mark?
David B. 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 David B. Mark?
The number on file is (408) 739-6200. Contact the office directly to confirm availability and scheduling.
NPI registry
What is David B. Mark's NPI number?
David B. 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 David B. Mark's education?
David B. Mark attended Stanford University School of Medicine, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
How long has David B. Mark been practicing?
David B. Mark has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
What is David B. Mark known for?
According to Medicare billing data, David B. 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 David B. Mark confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by David B. Mark. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.