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

Dr. John Post Shallcross, PSY.D.

Clinical Psychologist in Roswell, GA · enumerated 2007.

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

National Provider Identifier

1477696532

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Registry record

Entity type Individual (Type 1)

Name Dr. John Post Shallcross

Credential PSY.D.

Sex Male

Practice address Roswell, GA, 30076

Phone (770) 663-0923

Fax (770) 663-6256

Enumeration date Feb 15, 2007

Last updated in NPPES Mar 21, 2024

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License GA 001666 (GA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
582006242	Other	GA	TAX ID
00695912B	Medicaid	GA	-

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 John Shallcross's NPI record?

Cross-check NPI 1477696532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477696532 active?

Yes, as of the latest NPPES snapshot, NPI 1477696532 is active (record last updated 2024-03-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-21.