Alexander Chang MD PC
NPI 1275719536 · Eyewear Supplier · Pittsburgh, PA
Enrolled with Medicare as Dme Supplier - Physician - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Chang MD PC is a Eyewear Supplier organization in Pittsburgh, PA (NPI 1275719536).
Provider details
- NPI number
- 1275719536
- Entity type
- Organization
- Primary specialty
- Eyewear SupplierSuppliers
- Organization subpart
- No
- Authorized official
- Melissa Swearingen, Office Manager(412) 429-2020
- License
- 80677158 (PA)
Specialties & taxonomies
Suppliers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-01-17
- Last updated
- 2008-03-12
Frequently asked questions
- What is Alexander Chang MD PC's NPI number?
- Alexander Chang MD PC's National Provider Identifier (NPI) is 1275719536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Alexander Chang MD PC?
- Alexander Chang MD PC is classified in the NPPES registry as Eyewear Supplier (Suppliers).
- Where is Alexander Chang MD PC located?
- Alexander Chang MD PC's practice location on file with NPPES is 2101 Greentree Rd, Pittsburgh, PA 15220-1400.
- What is Alexander Chang MD PC's phone number?
- The practice phone number listed in the NPPES registry for Alexander Chang MD PC is (412) 429-2020.
- Does Alexander Chang MD PC accept Medicare?
- Alexander Chang MD PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Alexander Chang MD PC?
- The authorized official listed on Alexander Chang MD PC's NPPES record is Melissa Swearingen, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Alexander Chang MD PC's NPI active?
- Yes — Alexander Chang MD PC's NPI (1275719536) is active in the NPPES registry as of the last update on 2008-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.