Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ellyn Allyse Smith, M.D
Surgery Physician in Orange, CA · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669887899
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Registry record
Entity type Individual (Type 1)
Name Dr. Ellyn Allyse Smith
Credential M.D
Sex Female
Practice address 333 City Blvd W Ste 1600, Orange, CA, 92868
Phone (714) 456-8598
Enumeration date Jun 26, 2014
Last updated in NPPES Dec 30, 2024
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
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.
Frequently asked questions
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.
What specialty is Ellyn Smith?
Ellyn Smith is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Sayuri Brady Acute Care Nurse Practitioner · Orange, CA NPI 1992039572 Lisa Singer Nurse Practitioner · Orange, CA NPI 1346671096 Fariba Jafari Student in an Organized Health Care Education/Training Program · Orange, CA NPI 1205223674 Rene Tellez Surgery Physician · Orange, CA NPI 1619331923 Reza Fazl Alizadeh General Practice Physician · Orange, CA NPI 1336643550 Rachel Gilmore Dermatology Physician · Orange, CA NPI 1467956607 Katie Galvin Surgery Physician · Orange, CA NPI 1700381365 Jingjing Yu Student in an Organized Health Care Education/Training Program · Orange, CA NPI 1912404641
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-30.