Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jeffrey Messinger, MD
Pediatrics Physician in Anaheim, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942358932
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Registry record
Entity type Individual (Type 1)
Name Jeffrey Messinger
Credential MD
Sex Male
Practice address 500 S Anaheim Hills Rd, Suite 234, Anaheim, CA, 92807
Phone (714) 282-5437
Enumeration date Jan 8, 2007
Last updated in NPPES Oct 26, 2020
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
What specialty is Jeffrey Messinger?
Jeffrey Messinger 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.
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 → Raymond Chan General Practice Dentistry · Anaheim, CA NPI 1841293578 Ivan Martinez Endocrinology, Diabetes & Metabolism Physician · Anaheim Hills, CA NPI 1023014800 Mary Berry Family Medicine Physician · Anaheim Hills, CA NPI 1568449783 Anaheim Hills Wellness Center, A Medical Corporation Family Medicine Physician · Anaheim Hills, CA NPI 1750368874 Anaheim Hills Medical Group, A Medical Corporation Family Medicine Physician · Anaheim Hills, CA NPI 1356328470 Keith Gladstien Pediatrics Physician · Anaheim, CA NPI 1780645010 Anaheim Hills Medical Imaging, Inc. Physiological Laboratory · Anaheim Hills, CA NPI 1205898095 Children'S Medical Group of Orange County Apc Pediatrics Physician · Anaheim Hills, CA NPI 1386670974
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-26.