Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joel A Trotter, M.D.

Infectious Disease Physician in Placentia, CA · enumerated 2007 · practices at Petreccia and Trotter Medical Corporation.

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

National Provider Identifier

1578690343

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Registry record

Entity type Individual (Type 1)

Name Dr. Joel A Trotter

Credential M.D.

Sex Male

Practice address 1275 N. Rose Drive, Suite 134, Placentia, CA, 92870

Phone (714) 996-6500

Fax (714) 996-1722

Enumeration date Feb 27, 2007

Last updated in NPPES Oct 26, 2015

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G65207 (CA) Secondary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License G65207 (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
G65207	Other	CA	CA.MEDICAL LICENSE NUMBER
GR0048130	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

Is NPI 1578690343 active?

Yes, as of the latest NPPES snapshot, NPI 1578690343 is active (record last updated 2015-10-26).

How do I verify Joel Trotter's NPI record?

Cross-check NPI 1578690343 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Shahla Sadighian Internal Medicine Physician · Placentia, CA NPI 1265410468 Petreccia and Trotter Medical Corporation Infectious Disease Physician · Placentia, CA NPI 1912062647

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-26.