Alexander Chang, MD
NPI 1497808760 · Ophthalmology Physician · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Chang, MD is a Ophthalmology Physician provider in Pittsburgh, PA (NPI 1497808760).
Provider details
- NPI number
- 1497808760
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD019796E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
5,297 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 1,463 | $111 |
| Imaging of Retina92134 | 627 | $35 |
| Established Patient Problem Focused Exam of Visual System92012 | 377 | $78 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 371 | $81 |
| Imaging of Optic Nerve92133 | 350 | $31 |
| Microfluid Analysis of Tears83861 | 312 | $22 |
| Exam of Visual Field With Extended Testing |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 710 | 176 |
| Bimatoprostbrand: Lumigan | 414 | 122 |
| Timolol Maleate | 261 | 80 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 165 | 39 |
| Brimonidine Tartrate | 128 | 34 |
| Lifitegrastbrand: Xiidra | 119 | 46 |
| Netarsudil Mesylat/Latanoprostbrand: Rocklatan | 110 | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$195 across 10 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
- 2007-01-19
- Last updated
- 2008-01-28
Frequently asked questions
- What is Alexander Chang's NPI number?
- Alexander Chang's National Provider Identifier (NPI) is 1497808760, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Chang's specialty?
- Alexander Chang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Chang located?
- Alexander Chang's practice location on file with NPPES is 2101 Greentree Rd Ste 105, Pittsburgh, PA 15220-1400.
- What is Alexander Chang's phone number?
- The practice phone number listed in the NPPES registry for Alexander Chang is (412) 429-2020.
- Does Alexander Chang accept Medicare?
- Alexander Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Chang's NPI active?
- Yes — Alexander Chang's NPI (1497808760) is active in the NPPES registry as of the last update on 2008-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.