Physician Profile
David F. Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
David F. Chang, M.D. is a healthcare provider in Los Altos, CA specializing in ophthalmology. David trained at Harvard Medical School, graduating in 1980. According to Medicare claims data, David cared for 2,565 Medicare patients across 3,315 services. The services billed most often include measurement of corneal curvature and depth of eye, removal of cataract with insertion of prosthetic lens, and new 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.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (650) 948-9123
- Email not available
Practice Locations
762 ALTOS OAKS DR
Los Altos, CA 94024
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
- Cataracts
- Diabetic retinopathy
- Dry eye
- Glaucoma
- Macular degeneration
Cornea and external eye
- Blepharitis
- Corneal abrasion
- Corneal ulcer
- Keratoconus
- Pink eye
- Pterygium
Eyelid and tear drainage
- Blocked tear duct
- Chalazion
- Drooping eyelid
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
- Epiretinal membrane
- Retinal detachment
Eye injuries
- Foreign Object in Eye
Inflammation, neurologic, and orbit
- Thyroid eye disease
- Uveitis
Retina & vitreous
- Eye Floaters and Flashes
Procedures & services
Most searched procedures
- Cataract surgery
- Eye exam
- LASIK
- Retina surgery
Examination and imaging
- Corneal topography
- Fluorescein angiography
Cataract and lens
- Intraocular lens exchange
- YAG laser capsulotomy
Corneal procedures
- Amniotic Membrane Eye Graft
Eye diagnostics
- Optical Coherence Tomography Scan
Eye injuries
- Eye Scratch Laceration Repair
- Foreign Object Removal from Eye
Eyelid surgery
- Stye Removal
Eyelid, tear duct, and muscle
- Drooping-eyelid repair
- Entropion repair
- Eye-muscle surgery
- Eyelid surgery
- Tear-duct bypass surgery
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
- Laser Floater Removal
Laser procedures
- Laser Treatment for Retinal Tear
Laser vision correction
- SMILE Eye Surgery
Refractive surgery
- Clear Lens Exchange
- Implantable Contact Lenses
Tear duct & Orbit
- Orbital Decompression Surgery
- Tear Duct Plugs
Procedures Most Often Billed to Medicare
3,315 services · 2,565 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
940 |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
103 |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
99 |
| Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye | Procedure | 66991 |
13 |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
1,192 |
| New patient complete exam of visual system | Treatment | 92004 |
588 |
| Established patient complete exam of visual system | Treatment | 92014 |
138 |
| Imaging of retina | Treatment | 92134 |
106 |
| Imaging of optic nerve | Treatment | 92133 |
23 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
92 |
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.
Other eye doctors at this location 3
Same specialty, same street address — most likely the same department or group.
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.
More connections — 26 related providers in 4 groups
Other eye doctors in Los Altos 3
Same specialty, same city.
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Harvard Medical School 7
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 David F. Chang?
David F. Chang is an eye doctor in Los Altos, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
What is David F. Chang's address?
David F. Chang is listed at 762 Altos Oaks Dr, Los Altos, CA 94024. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with David F. Chang?
The number on file is (650) 948-9123. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is David F. Chang's NPI number?
David F. Chang's National Provider Identifier is 1316966138. 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 David F. Chang train?
David F. Chang attended Harvard Medical School, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has David F. Chang been practicing?
David F. Chang has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What procedures does David F. Chang perform?
According to Medicare billing data, David F. Chang performs procedures including removal of cataract with insertion of prosthetic lens, complex removal of cataract with insertion of prosthetic lens and removal of recurring cataract in lens capsule using a laser; provides treatments such as measurement of corneal curvature and depth of eye and new 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 David F. Chang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by David F. Chang. 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.