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

Dr. Nadavaluru S Reddy, MD

Clinical Cardiac Electrophysiology Physician in Springfield, MA · enumerated 2008.

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

National Provider Identifier

1689852691

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Registry record

Entity type Individual (Type 1)

Name Dr. Nadavaluru S Reddy

Credential MD

Sex Male

Practice address Springfield, MA, 01104

Phone (413) 748-7095

Fax (413) 732-0225

Enumeration date Feb 1, 2008

Last updated in NPPES Sep 17, 2024

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

Taxonomy & licenses

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 260328 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1689852691 active?

Yes, as of the latest NPPES snapshot, NPI 1689852691 is active (record last updated 2024-09-17).

How do I verify Nadavaluru Reddy's NPI record?

Cross-check NPI 1689852691 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-17.