National Provider Identifier Database

JOANN C CHANG, MD – NPI #1730359100
Ophthalmology

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.


Contact Information

JOANN C CHANG, MD
479 OLD UNION TPKE
LANCASTER, MA01523-3029
Phone: 978-537-3900
Fax: 978-537-6030
Website:
Specialty Taxonomy Code
* Ophthalmology 207W00000X

* Indicates primary specialty

NPI Profile & details for JOANN C CHANG

NPI Number 1730359100
Credentials MD
Entity Individual
Enumeration date 03/02/2008
Last updated 05/02/2022 - About 4 years ago
Sole proprietor1 No
Identifiers
  • MA License #: 243192
  • NY License #: 267568
Hospital affiliation n/a

1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

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