NPI Portal NPI Lookup & Verification

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

Mr. Sudarshan Chatterjee, MD FACC

Interventional Cardiology Physician in Montclair, CA · enumerated 2006 · practices at Sudarshan Chatterjee MD Inc.

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

National Provider Identifier

1750465712

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Registry record

Entity type Individual (Type 1)
Name Mr. Sudarshan Chatterjee
Credential MD FACC
Sex Male
Practice address Montclair, CA, 91763
Enumeration date Oct 25, 2006
Last updated in NPPES Jul 21, 2022

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

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 53581 (MA) Secondary
207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License C43324 (CA) Primary

Other identifiers

Identifier Type State Issuer
201274943 Other - PRIVATE HEALTH SYSTEM
419452 Other - US FAMILY HEALTH
C43324 Other CA MEDICAL BOARD OF CALIFORNIA -DEPARTMENT OF CONSUMER AFFAIRS
302201063 Other - EDS NH MEDICAID
31496 Other - FALLON COMM HEALTH PLANS
981971 Other - NETWORK HEALTH PLAN
0014180 Other - NEIGHBORHOOD HEALTH PLAN
201274943 Other - FIRST HEALTH
2500732 Other - UNITED HEALTH CARE
J09303 Other - BCBS OF MASS
2500732 Other - EVERCARE
60560 Other - CIGNA
053581 Other - TUFTS HEALTH PLAN
0104615YPM01 Other - ANTHEM BLUE SHIELD
3057607 Medicaid MA -
61066 Other - HARVARD PILGRIM
89673 Other - AETNA USHC HMO ONLY

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 Sudarshan Chatterjee's NPI record?
Cross-check NPI 1750465712 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1750465712 active?
Yes, as of the latest NPPES snapshot, NPI 1750465712 is active (record last updated 2022-07-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.