NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Madhu Mathur, MD

Pediatrics Physician in Stamford, CT · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1235142100

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Registry record

Entity type Individual (Type 1)
Name Dr. Madhu Mathur
Credential MD
Sex Female
Practice address Stamford, CT, 06905
Phone (203) 614-8517
Fax (203) 614-8518
Enumeration date Aug 14, 2006
Last updated in NPPES Apr 21, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 039624 (CT) Secondary
2083B0002X Obesity Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License 221166 (NY) Secondary
2083B0002X Obesity Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License 039624 (CT) Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 221166 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
2079769 Other CT FIRST HEALTH / CCN
797586 Other CT CONNECTICARE
TIN Other - FOCUS
TIN Other - CONSUMER HEALTH NETWORK
2215002 Other CT UNITED HEALTHCARE
TIN Other - WELLCARE/ FIRST CHOICE
5129667 Other CT CIGNA
TIN Other - MULTIPLAN
010039624CT01 Other CT ANTHEM BC/BS
507X21 Other CT EMPIRE BC/BS
TIN Other - POMCO
2V4390 Other CT HEALTH NET
7916409 Other CT AETNA
P2645508 Other CT OXFORD HEALTH PLAN
TIN Other - PRIVATE HEALTHCARE SYSTEM

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Madhu Mathur's NPI record?
Cross-check NPI 1235142100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1235142100 active?
Yes, as of the latest NPPES snapshot, NPI 1235142100 is active (record last updated 2023-04-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-21.