Alexander Chang Md PC in Pittsburgh, PA
This location of Alexander Chang Md bills under NPI 1275719536, an organization record issued on Jan 17, 2008 with the primary taxonomy Eyewear Supplier. It is one of 2 NPIs registered under this name and one of 2 in Pittsburgh; each clinician who sees you there has their own NPI and license.
- Legal name
- Alexander Chang Md PC
- Entity
- Type 2 · organization
- Primary taxonomy
- Eyewear Supplier 332H00000X
- Practice location
- 2101 GREENTREE RD SUITE 105, Pittsburgh, PA 15220
- Phone
- 412-429-2020
- Enumerated
- Jan 17, 2008
- Record updated
- Mar 12, 2008
- Authorized official
- Office Manager (title as filed)
The other Pittsburgh NPI
- Alexander Chang Md PC2101 GREENTREE RD STE 105 · issued Apr 18, 20071386861995
7 clinicians CMS lists with Alexander Chang Md in Pittsburgh
- Michael Alunni, MDOphthalmology Physician1194916825
- Brooke Calle, ODOptometrist1356235378
- Brian Gaster, ODOptometrist1922099639
- Michael Lewen, MDRetina Specialist (Ophthalmology) Physician1861830119
- Ryan Mcbee, ODOptometrist1326247552
- Rose Ngan, MDOphthalmology Physician1255453114
- Joseph Scherer, MDOphthalmology Physician1306805668
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Every location registered under this name, in 1 city.
See every locationChecking an organization
- Confirm the business with the Pennsylvania secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
Common questions
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Which Pittsburgh NPI should I use?
Ask the office which NPI it bills under; all 2 Pittsburgh NPIs are registered under the same name.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.