Physician Profile
Margaret A. Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
Margaret A. Chang, M.D. practices ophthalmology in Sacramento, CA. Margaret is a 2002 graduate of University of Missouri, Columbia School of Medicine. Margaret is also listed as specializing in ophthalmology — retina specialist. Medicare claims data shows Margaret provided 67,403 services to 4,894 patients. The services billed most often include injection, faricimab-svoa, 0.1 mg, imaging of retina, and injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mg. The provider's National Provider Identifier (NPI) is 1477504405.
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
- (916) 454-4861
- Email not available
Practice Locations
3939 J ST STE 106
Sacramento, CA 95819
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
67,403 services · 4,894 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of drug into eye | Procedure | 67028 |
2,166 | More than most peers in Ophthalmology |
| Destruction of leaking blood vessels of retina using laser | Procedure | 67228 |
30 | As often as other peers in Ophthalmology |
| Photocoagulation treatment to prevent detachment of retina | Procedure | 67145 |
15 | Less often than most peers in Ophthalmology |
| Injection of drug or substance into membrane covering eyeball | Procedure | 67515 |
13 | Less often than most peers in Ophthalmology |
| 2d ultrasound scan of eye tissue and structures | Imaging | 76512 |
33 | As often as other peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
3,595 | More than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
1,136 | More often than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
685 | More often than most peers in Ophthalmology |
| Exam of retinal blood vessels using a special camera after injection of a dye | Treatment | 92235 |
334 | More than most peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
169 | 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 8
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 — 31 related providers in 4 groups
Other eye doctors in Sacramento 8
Same specialty, same city.
Trained at University of Missouri, Columbia School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2002 at University of Missouri, Columbia School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug into eye 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Margaret A. Chang specialize in?
Margaret A. Chang is an eye doctor in Sacramento, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Margaret A. Chang located?
Margaret A. Chang is listed at 3939 J St Ste 106, Sacramento, CA 95819. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Margaret A. Chang's phone number?
The number on file is (916) 454-4861. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Margaret A. Chang?
Margaret A. Chang's National Provider Identifier is 1477504405. 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 Margaret A. Chang train?
Margaret A. Chang attended University of Missouri, Columbia School of Medicine, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Margaret A. Chang have?
Margaret A. Chang has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What does Margaret A. Chang do most often?
According to Medicare billing data, Margaret A. Chang performs procedures including injection of drug into eye, destruction of leaking blood vessels of retina using laser and photocoagulation treatment to prevent detachment of retina; reads or performs imaging such as 2d ultrasound scan of eye tissue and structures; 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
Is Margaret A. Chang's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Margaret A. Chang. If this is you, claiming it is free.
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