Active NPI
John B Constantine, M.D.
- Ophthalmology Physician
- Chelmsford, MA
National Provider Identifier
1437157765
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Ophthalmology Physician
- License
- 71751
- Practice address
- 19 Village SQ
Chelmsford, MA 01824-2712 - Phone
- (978) 256-5600
- Fax
- (978) 703-0250
- NPI assigned
- Jul 11, 2005
- Last updated
- Sep 29, 2011
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Specialist | 174400000X | 71751 | MA | |
| Ophthalmology Physician | 207W00000X | 71751 | MA | Primary |
Addresses
Primary practice location
19 Village SQ
Chelmsford, MA 01824-2712
Mailing address
19 Village SQ
Chelmsford, MA 01824-2712
Phone (978) 256-5600
Other identifiers 15
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 15288 | Other | MA | HARVARD PILGRIM HEALTH |
| 2024535 | Medicaid | MA | |
| 981909 | Other | MA | NET WORK HEALTH |
| P451314 | Other | MA | OXFORD HEALTH |
| 7494 | Other | MA | DAVIS VISION |
| B26214 | Other | MA | BC/BS MA |
| 158296 | Other | MA | PHCS |
| 180007 | Other | MA | RAIL ROAD MEDICARE |
| S000303 | Other | MA | CHAMPUS |
| 21879 | Other | MA | FALLON |
| CIGNA | Other | MA | 20516 |
| 0004859 | Other | MA | NEIGHBORHOOD HEALTH PLAN |
| 21480 | Other | MA | HEALTH SOURCE |
| 32774 | Other | MA | JOHN HANCOCK/CHILDERN |
| 0800093 | Other | MA | EVER CARE |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Leahey Eye Clinic | Past | Accepting new patients | |
| Cataract and Laser Center of the North Shore, LLC | Past | Accepting new patients |
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
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- NPI 1790862183
-
- Optometrist
- Lowell, MA
- NPI 1487747085
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1121040000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1317254400000",
"number": "1437157765",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "19 VILLAGE SQ",
"city": "CHELMSFORD",
"state": "MA",
"postal_code": "018242712",
"telephone_number": "978-256-5600",
"fax_number": "978-703-0250"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "19 VILLAGE SQ",
"city": "CHELMSFORD",
"state": "MA",
"postal_code": "018242712",
"telephone_number": "978-256-5600",
"fax_number": "978-703-0250"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CONSTANTINE",
"first_name": "JOHN",
"middle_name": "B",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-07-11",
"last_updated": "2011-09-29",
"status": "A"
},
"taxonomies": [
{
"code": "174400000X",
"taxonomy_group": "",
"desc": "Specialist",
"state": "MA",
"license": "71751",
"primary": false
},
{
"code": "207W00000X",
"taxonomy_group": "",
"desc": "Ophthalmology",
"state": "MA",
"license": "71751",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "HARVARD PILGRIM HEALTH",
"identifier": "15288",
"state": "MA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "2024535",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "NET WORK HEALTH",
"identifier": "981909",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "OXFORD HEALTH",
"identifier": "P451314",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "DAVIS VISION",
"identifier": "7494",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BC/BS MA",
"identifier": "B26214",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "PHCS",
"identifier": "158296",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "RAIL ROAD MEDICARE",
"identifier": "180007",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "CHAMPUS",
"identifier": "S000303",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "FALLON",
"identifier": "21879",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "20516",
"identifier": "CIGNA",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "NEIGHBORHOOD HEALTH PLAN",
"identifier": "0004859",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "HEALTH SOURCE",
"identifier": "21480",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "JOHN HANCOCK/CHILDERN",
"identifier": "32774",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "EVER CARE",
"identifier": "0800093",
"state": "MA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Chelmsford, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 2011; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.