Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joana Joy Tamayo, M.D.

Specialist in Glendale, CA · enumerated 2006.

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

National Provider Identifier

1235106188

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Joana Joy Tamayo

Credential M.D.

Sex Female

Practice address 1808 Verdugo Blvd, Suite 208, Glendale, CA, 91208

Phone (818) 952-5322

Fax (818) 952-7993

Enumeration date Feb 28, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License A79900 (CA) 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
0A7990000	Medicaid	CA	-

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 Joana Tamayo?

Joana Tamayo is registered in NPPES with the primary taxonomy of Specialist. 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 2007-07-09.