Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joel Siegel, M.D.

Dermatology Physician in Oxnard, CA · enumerated 2005 · practices at Community Memorial Health System.

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

National Provider Identifier

1528056868

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Joel Siegel

Credential M.D.

Sex Male

Practice address 3641 W 5th St, Oxnard, CA, 93030

Phone (805) 985-5505

Fax (805) 985-6095

Enumeration date Oct 11, 2005

Last updated in NPPES Oct 2, 2012

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License G55171 (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
00G551711	Other	CA	INDIVIDUAL PTAN
WG55171A	Other	CA	INDIVIDUAL PTAN
WG55171F	Other	CA	INDIVIDUAL PTAN
WG55171H	Other	CA	INDIVIDUAL PTAN
00G551713	Other	CA	INDIVIDUAL PTAN
00G551715	Other	CA	INDIVIDUAL PTAN
WG55171C	Other	CA	INDIVIDUAL PTAN
WG55171J	Other	CA	INDIVIDUAL PTAN
P00611069	Other	CA	RAILROAD MEDICARE
WG55171D	Other	CA	INDIVIDUAL PTAN
WG55171E	Other	CA	INDIVIDUAL PTAN
00G551714	Other	CA	INDIVIDUAL PTAN
WG55171G	Other	CA	INDIVIDUAL PTAN
00G551712	Other	CA	INDIVIDUAL PTAN
DG7458	Other	PA	RAILROAD MEDICARE GROUP PTAN
WG55171B	Other	CA	INDIVIDUAL PTAN
00G551710	Other	CA	INDIVIDUAL PTAN
WG55171I	Other	CA	INDIVIDUAL PTAN

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

How do I verify Joel Siegel's NPI record?

Cross-check NPI 1528056868 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1528056868 active?

Yes, as of the latest NPPES snapshot, NPI 1528056868 is active (record last updated 2012-10-02).

Other providers at this practice address

Browse all →

Scott Changchien Obstetrics & Gynecology Physician · Oxnard, CA NPI 1902850555 Suseela Dasari Pediatrics Physician · Oxnard, CA NPI 1982658548 Community Memorial Health System Multi-Specialty Clinic/Center · Oxnard, CA NPI 1346288875 Victoria Sorlie-Aguilar Family Medicine Physician · Oxnard, CA NPI 1366457772 Michael Trauner MOHS-Micrographic Surgery Physician · Oxnard, CA NPI 1558460394 Mostafa Hammoudi Neurology Physician · Oxnard, CA NPI 1912027426 Denia Garfias Pediatrics Physician · Oxnard, CA NPI 1992905871 Dorothea Clayton Internal Medicine Physician · Oxnard, CA NPI 1053596395

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-02.