Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marnie Baker, MD
Pediatrics Physician in Irvine, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013907377
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Marnie Baker
Credential MD
Sex Female
Practice address 4050 Barranca Pkwy Ste 170, Irvine, CA, 92604
Phone (949) 551-1090
Fax (949) 262-5500
Enumeration date Oct 26, 2005
Last updated in NPPES May 12, 2021
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 Marnie Baker?
Marnie Baker is registered in NPPES with the primary taxonomy of Pediatrics 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-12.