MR. JOSEPH MICHAEL DIAZ PA-C
NPI 1023114709
Physician Assistant in Ventura, CA

Active since September 16, 2006PECOS Enrolled
10885 TELEGRAPH RD, VENTURA, CA 93004(805) 647-7704(833) 916-2148 Get Directions Write a Review

NPPES record last updated: September 22, 2021. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Sep 22, 2021, May 26, 2020 (2 updates tracked since 2020).

About Mr. Joseph Michael Diaz Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. JOSEPH MICHAEL DIAZ PA-C (NPI 1023114709) is an individual physician assistant in Ventura, California, licensed in California (PA11970) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1023114709
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMR. JOSEPH MICHAEL DIAZCredential: PA-C
Location Address10885 TELEGRAPH RDVentura, CA 93004-1272
Mailing Address10885 Telegraph RdVentura, CA 93004-1272 · (805) 647-7704 · Fax (805) 647-4291
Fax(833) 916-2148
Sole ProprietorNo
Enumeration DateSeptember 16, 2006
Last NPPES UpdateSeptember 22, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 22, 2021
NPI 1023114709 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in CA · PA11970
Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

10885 TELEGRAPH RD, Ventura, CA 93004

Other Identifiers 1

OtherPA1170CA · Physician Assistant -cert

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Mr. Joseph Michael Diaz Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93004 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$95.28 typical visit price
range $62.32 – $185.36
Typical copayment $23.82 (range $15.58 – $46.34)
Most-billed visit code 99203
Established Patient
$77.11 typical visit price
range $20.68 – $151.85
Typical copayment $19.27 (range $5.17 – $37.96)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
10885 TELEGRAPH RD
VENTURA, CA 93004
Nurse Practitioner (Family)
10885 TELEGRAPH RD
VENTURA, CA 93004
Nurse Practitioner (Family)
10885 TELEGRAPH RD
VENTURA, CA 93004
Family Medicine
10885 TELEGRAPH RD
VENTURA, CA 93004
Family Medicine
10885 TELEGRAPH RD
VENTURA, CA 93004

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joseph Diaz's NPI number?

The NPI number for Joseph Diaz is 1023114709. It was assigned to this individual provider in the NPPES registry on September 16, 2006.

Where is Joseph Diaz located?

Joseph Diaz practices at 10885 Telegraph Rd, Ventura, CA 93004. The listed phone number is (805) 647-7704.

What is Joseph Diaz's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Joseph Diaz enrolled in Medicare?

Yes. Joseph Diaz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Joseph Diaz was last updated on September 22, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.