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

Balaji Natarajan, M.B.B.S

Interventional Cardiology Physician in Peoria, AZ · enumerated 2015.

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

National Provider Identifier

1366822801

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Registry record

Entity type Individual (Type 1)

Name Balaji Natarajan

Credential M.B.B.S

Sex Male

Practice address Peoria, AZ, 85381

Phone (623) 876-8816

Fax (623) 298-0168

Enumeration date May 30, 2015

Last updated in NPPES Feb 17, 2026

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 64400 (AZ) Secondary

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 64400 (AZ) Primary

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

Where does Balaji Natarajan practice?

The practice location on file with NPPES is in Peoria, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Balaji Natarajan?

The National Provider Identifier (NPI) for Balaji Natarajan is 1366822801, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Jeffrey Greenberg Cardiovascular Disease Physician · Peoria, AZ NPI 1215933957 Marc Kates Cardiovascular Disease Physician · Peoria, AZ NPI 1326044025 David Sease Cardiovascular Disease Physician · Peoria, AZ NPI 1710983481 Fredric Klopf Interventional Cardiology Physician · Peoria, AZ NPI 1598766487 Helen Bell Acute Care Nurse Practitioner · Peoria, AZ NPI 1336140185 Joseph Caplan Cardiovascular Disease Physician · Peoria, AZ NPI 1346238425 Christopher Mackey Cardiovascular Disease Physician · Peoria, AZ NPI 1275521346 Vishal Patel Interventional Cardiology Physician · Peoria, AZ NPI 1437147477

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-17.