John Constantine, M.D

ActiveIndividual ProviderSpecialty not listed
NPI issued: July 11, 2005

Quick Facts

NPI Number
1437157765
TypeIndividual
StatusActive
SpecialtySpecialty not listed
Taxonomy174400000X — Specialty not listed
Phone
(978) 256-5600
StateMA

NPI Validation Status: Verified

✅Valid 10-digit NPI number (1437157765)
✅Active status confirmed
✅Verified by CMS NPPES Registry
✅HIPAA compliant identifier
✅Enumeration date on file (July 11, 2005)
Data source: CMS NPPES

Provider Overview

JOHN CONSTANTINE, M.D is a Healthcare provider based in Chelmsford, MA who has been registered with CMS since 2005. This NPI is currently Active under CMS NPPES registry.

Provider Details

NPI Number1437157765
Provider TypeIndividual Provider
GenderMale
CredentialM.D
StatusActive
Enumeration DateJuly 11, 2005

Practice Location

CityChelmsford
StateMA
ZIP Code01824-2712
Phone(978) 256-5600

Specialties & Licenses

★ Primary
SpecialtySpecialty not listed
Taxonomy Code174400000X
License StateMA

Mailing Address

CityChelmsford
StateMA
ZIP Code01824-2712
Phone(978) 256-5600
Same as practice location

How to Use This NPI

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For Insurance Billing

Use NPI 1437157765 in Box 33 of the CMS-1500 claim form. This number is required by all major insurance carriers to identify the billing provider and process electronic medical claims.

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For Credentialing

Reference NPI 1437157765for provider credential verification. Hospital systems, state licensing boards, and CAQH directories query this number to verify the provider's active clinical status.

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For Patients

Share NPI 1437157765 with your insurance company. If you need to verify out-of-network benefits or file a reimbursement claim, your insurance provider will require this number to process it.

About Specialty not listed

Specialists in Specialty not listed provide expert clinical care within their specific domain, focusing on the diagnosis, treatment, and management of conditions relevant to their field of practice.

Browse all Specialty not listedproviders →
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98,222
Specialty not listed Providers in the US

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People Also Ask

What is John Constantine's NPI number?
John Constantine's NPI number is 1437157765, a unique 10-digit identifier issued by the Centers for Medicare & Medicaid Services (CMS).
Is John Constantine's NPI currently active?
Yes, John Constantine's NPI status is Active as of the latest CMS NPPES database updates.
What does John Constantine specialize in?
John Constantine specializes in Specialty not listed. The healthcare taxonomy code associated with this specialty is 174400000X.
Where does John Constantine practice?
John Constantine practices in Chelmsford, MA 01824-2712.
When was John Constantine's NPI issued?
John Constantine's NPI was issued on July 11, 2005.
What is John Constantine's provider type?
John Constantine is registered as an Individual Provider under CMS NPI Type 1.