Marvin Den, M.D

ActiveIndividual ProviderAllergy & Immunology
NPI issued: August 18, 2005

Quick Facts

NPI Number
1659363356
TypeIndividual
StatusActive
SpecialtyAllergy & Immunology
Taxonomy207K00000X — Allergy & Immunology
Phone
(203) 845-4800
StateCT

NPI Validation Status: Verified

✅Valid 10-digit NPI number (1659363356)
✅Active status confirmed
✅Verified by CMS NPPES Registry
✅HIPAA compliant identifier
✅Enumeration date on file (August 18, 2005)
Data source: CMS NPPES

Provider Overview

MARVIN DEN, M.D is a Allergy & Immunology provider based in Norwalk, CT who has been registered with CMS since 2005. This NPI is currently Active under CMS NPPES registry.

Provider Details

NPI Number1659363356
Provider TypeIndividual Provider
GenderMale
CredentialM.D
StatusActive
Enumeration DateAugust 18, 2005

Practice Location

CityNorwalk
StateCT
ZIP Code06851-4647
Phone(203) 845-4800

Specialties & Licenses

★ Primary
SpecialtyAllergy & Immunology
Taxonomy Code207K00000X
License StateCT

Mailing Address

CityNorwalk
StateCT
ZIP Code06851-4647
Phone(203) 845-4800
Same as practice location

How to Use This NPI

📋

For Insurance Billing

Use NPI 1659363356 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 1659363356for 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 1659363356 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 Allergy & Immunology

Specialists in Allergy & Immunology 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 Allergy & Immunologyproviders →
📊
5,251
Allergy & Immunology Providers in the US

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People Also Ask

What is Marvin Den's NPI number?
Marvin Den's NPI number is 1659363356, a unique 10-digit identifier issued by the Centers for Medicare & Medicaid Services (CMS).
Is Marvin Den's NPI currently active?
Yes, Marvin Den's NPI status is Active as of the latest CMS NPPES database updates.
What does Marvin Den specialize in?
Marvin Den specializes in Allergy & Immunology. The healthcare taxonomy code associated with this specialty is 207K00000X.
Where does Marvin Den practice?
Marvin Den practices in Norwalk, CT 06851-4647.
When was Marvin Den's NPI issued?
Marvin Den's NPI was issued on August 18, 2005.
What is Marvin Den's provider type?
Marvin Den is registered as an Individual Provider under CMS NPI Type 1.