Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John William Machalaba, PSY.D.

Psychologist in Philadelphia, PA · enumerated 2020.

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

National Provider Identifier

1467076315

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Registry record

Entity type Individual (Type 1)

Name Dr. John William Machalaba

Credential PSY.D.

Sex Male

Practice address 123 Chestnut St Ste 304, Philadelphia, PA, 19106

Phone (215) 399-4128

Enumeration date Jun 5, 2020

Last updated in NPPES Jun 10, 2026

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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

Where does John Machalaba practice?

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

What is the NPI number for John Machalaba?

The National Provider Identifier (NPI) for John Machalaba is 1467076315, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-10.