Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John C Rhead, PH.D.

Psychologist in Columbia, MD · enumerated 2007 · practices at John C. Rhead, Ph.D., P.A..

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

National Provider Identifier

1811039068

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Registry record

Entity type Individual (Type 1)

Name Dr. John C Rhead

Credential PH.D.

Sex Male

Practice address 5560 Sterrett Pl, Suite 205, Columbia, MD, 21044

Phone (410) 997-5060

Enumeration date Feb 13, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 651 (MD) Primary

103TA0400X Addiction (Substance Use Disorder) Psychologist Behavioral Health & Social Service Providers Secondary

103TA0700X Adult Development & Aging Psychologist Behavioral Health & Social Service Providers Secondary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 651 (MD) Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers Secondary

103TF0000X Family Psychologist Behavioral Health & Social Service Providers Secondary

103TP2701X Group Psychotherapy Psychologist Behavioral Health & Social Service Providers Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
12522	Other	-	NATIONAL REGISTER

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

What specialty is John Rhead?

John Rhead is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

John C. Rhead, Ph.D., P.A. Psychologist · Columbia, MD NPI 1386786549 Susan Jacobson Clinical Social Worker · Columbia, MD NPI 1114139607 Erika Hoxworth Marriage & Family Therapist · Columbia, MD NPI 1073723201 Claudia Lawrence-Webb Clinical Social Worker · Columbia, MD NPI 1225225873 Kathleen Douglass Professional Counselor · Columbia, MD NPI 1679761290 Rachel Schmidt Psychologist · Columbia, MD NPI 1962802421 Wrenn Skidmore Social Worker · Columbia, MD NPI 1407306335

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.