Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. David L Bortz, M.D., F.A.C.P.
Specialist in San Diego, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336291665
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Registry record
Entity type Individual (Type 1)
Name Dr. David L Bortz
Credential M.D., F.A.C.P.
Sex Male
Practice address 5414 Oberlin Dr, Suite 110, San Diego, CA, 92121
Phone (858) 455-9955
Fax (858) 455-1429
Enumeration date Jan 17, 2007
Last updated in NPPES Apr 28, 2008
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 David Bortz?
David Bortz 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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-28.