National Provider Identifier Database

JOHN B CONSTANTINE, MD – NPI #1437157765
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

JOHN B CONSTANTINE, MD
19 VILLAGE SQ
CHELMSFORD, MA01824-2712
Phone: 978-256-5600
Fax: 978-703-0250
Website:
Specialty Taxonomy Code
* Ophthalmology 207W00000X
Specialist 174400000X

* Indicates primary specialty

NPI Profile & details for JOHN B CONSTANTINE

NPI Number 1437157765
Credentials MD
Entity Individual
Enumeration date 07/11/2005
Last updated 09/29/2011 - About 15 years ago
Sole proprietor1 No
Identifiers
  • MA License #: 71751
  • MA Medicaid: 2024535
  • MA Other: CIGNA 20516
  • MA Other: B26214 BC/BS MA
  • MA Other: S000303 CHAMPUS
  • MA Other: 7494 DAVIS VISION
  • MA Other: 0800093 EVER CARE
  • MA Other: 21879 FALLON
  • MA Other: 15288 HARVARD PILGRIM HEALTH
  • MA Other: 21480 HEALTH SOURCE
  • MA Other: 32774 JOHN HANCOCK/CHILDERN
  • MA Other: 0004859 NEIGHBORHOOD HEALTH PLAN
  • MA Other: 981909 NET WORK HEALTH
  • MA Other: P451314 OXFORD HEALTH
  • MA Other: 158296 PHCS
  • MA Other: 180007 RAIL ROAD MEDICARE
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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