Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John D. Rajniak, LPC, DDS

General Practice Dentistry in Williamsburg, VA · enumerated 2007 · practices at Colonial Behavioral Health.

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

National Provider Identifier

1538216361

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Registry record

Entity type Individual (Type 1)

Name Dr. John D. Rajniak

Credential LPC, DDS

Sex Male

Practice address 1657 Merrimac Trl, Williamsburg, VA, 23185

Phone (757) 220-3200

Enumeration date Jan 4, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 0701003769 (VA) Secondary

1223G0001X General Practice Dentistry Dental Providers · License 0401008181 (VA) Primary

LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC credential

Other identifiers

Identifier	Type	State	Issuer
OPTIMA	Other	VA	O85428M
360843	Other	VA	MANAGED HEALTH NET
180340	Other	VA	ANTHEM

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 1538216361 active?

Yes, as of the latest NPPES snapshot, NPI 1538216361 is active (record last updated 2025-09-11).

How do I verify John Rajniak's NPI record?

Cross-check NPI 1538216361 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 2025-09-11.