Evan Chang, MD
NPI 1457856759 · Ophthalmology Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Evan Chang, MD is a Ophthalmology Physician provider in Sacramento, CA (NPI 1457856759).
Provider details
- NPI number
- 1457856759
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A166015 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,295 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Photography of the Retina92250 | 739 | $40 |
| Established Patient Complete Exam of Visual System92014 | 709 | $138 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 328 | $140 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 216 | $99 |
| Established Patient Problem Focused Exam of Visual System92012 | 204 | $99 |
| Exam of Visual Field With Extended Testing92083 | 203 | $70 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 324 | 120 |
| Timolol Maleate | 174 | 60 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 163 | 66 |
| Bimatoprostbrand: Lumigan | 132 | 36 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 81 | 69 |
| Cyclosporinebrand: Restasis | 80 | 32 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,453 across 41 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-03-28
- Last updated
- 2022-03-15
- Certified
- 2022-03-15
Frequently asked questions
- What is Evan Chang's NPI number?
- Evan Chang's National Provider Identifier (NPI) is 1457856759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Evan Chang's specialty?
- Evan Chang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Evan Chang located?
- Evan Chang's practice location on file with NPPES is 4860 Y St Ste 2400, Sacramento, CA 95817-2307.
- What is Evan Chang's phone number?
- The practice phone number listed in the NPPES registry for Evan Chang is (916) 734-6602.
- Does Evan Chang accept Medicare?
- Evan Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Evan Chang's NPI active?
- Yes — Evan Chang's NPI (1457856759) is active in the NPPES registry as of the last update on 2022-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.