Physician Profile
Michael A. Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
Based in Lexington, MA, Michael A. Chang, M.D. is listed in the NPI registry under ophthalmology. Michael graduated from Harvard Medical School in 1984. According to Medicare claims data, Michael cared for 1,510 Medicare patients across 1,687 services. The services billed most often include established patient complete exam of visual system, exam of visual field with extended testing, and imaging of optic nerve.
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
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.
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
- (781) 890-1023
- Email not available
Practice Locations
110 HARTWELL AVE STE 201
Lexington, MA 02421
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
1,687 services · 1,510 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
65 | More often than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
362 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
349 | More often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
309 | More often than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
264 | More often than most peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
188 | More than most peers in Ophthalmology |
| Photography of the retina | Treatment | 92250 |
82 | As often as other peers in Ophthalmology |
| Imaging of front third of eye | Treatment | 92132 |
68 | More often than most 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.
Other eye doctors at this location 1
Same specialty, same street address — most likely the same department or group.
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 Lexington 7
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at Harvard Medical School 7
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound scan of cornea to determine thickness 8
Providers in MA who bill this service to Medicare most often.
Common questions
What does Michael A. Chang specialize in?
Michael A. Chang is an eye doctor in Lexington, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Michael A. Chang located?
Michael A. Chang is listed at 110 Hartwell Ave Ste 201, Lexington, MA 02421. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Michael A. Chang's phone number?
The number on file is (781) 890-1023. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Michael A. Chang's NPI number?
Michael A. Chang's National Provider Identifier is 1366438624. 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 Michael A. Chang train?
Michael A. Chang attended Harvard Medical School, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Michael A. Chang been practicing?
Michael A. Chang has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What does Michael A. Chang do most often?
According to Medicare billing data, Michael A. Chang performs imaging including ultrasound scan of cornea to determine thickness; provides treatments such as established patient complete exam of visual system and exam of visual field with extended testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Michael A. Chang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Michael A. 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.