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

Dr. Joy P Ruiz-Molleston, MD

Addiction Medicine (Family Medicine) Physician in Lakewood, WA · enumerated 2006.

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

National Provider Identifier

1851326722

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Joy P Ruiz-Molleston

Credential MD

Sex Female

Practice address Lakewood, WA, 98499

Phone (253) 474-5141

Fax (253) 474-5507

Enumeration date Jul 11, 2006

Last updated in NPPES Jul 20, 2010

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

Taxonomy & licenses

207QA0401X Addiction Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License MD00024942 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1084425	Medicaid	WA	-
RU5122	Other	WA	REGENCE

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

What specialty is Joy Ruiz-Molleston?

Joy Ruiz-Molleston is registered in NPPES with the primary taxonomy of Addiction Medicine (Family Medicine) Physician. 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 →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-20.