Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Melissa Martinez

Physician Assistant β€’ Oxnard, CA

Active NPI 1528922085 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

2841 N Ventura Rd Ste 200
Oxnard, CA 930362213

Call 8059836233 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2841 N Ventura Rd Ste 200

Oxnard, CA 930362213

Telephone 8059836233
Organization at the Same NPPES Address or Phone
Coastal Vascular Center Pc Facility NPI 1821031675

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Camarillo, CA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Coastal Vascular Center Pc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Graduation Year

2025

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2021–2025.

Guide: How to read an Open Payments record

Years since graduation

1 years (graduated 2025)

CMS Doctors and Clinicians data list 2025 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

NPI first issued

2025

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Melissa Martinez has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Melissa Martinez as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Oxnard and California

67 active clinicians are listed under Physician Assistant with a practice address in Oxnard, CA (14,777 in California).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Oxnard

10.4% of these 67 clinicians have the CMS telehealth indicator.

53.7% of these 67 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-05-05
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20260520004111

Enrollment State Jurisdiction

CA

PECOS Control ID

4385113117

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Coastal Vascular Center Pc

2841 N Ventura Rd, Oxnard, CA 930362213

Phone: 8059836233

Coastal Vascular Center Pc

484 Mobil Ave, Camarillo, CA 930106362

Phone: 8054846900

Secondary Practice Locations

484 Mobil Ave Ste 23

Camarillo, CA 930106362

Phone: 8059836233

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

6 listed
Dr. Siddharth Agarwal , MD

Surgery - Vascular Surgery

NPI 1407078496

Doctor of Medicine (M.D.)

Dr. Gregory Albaugh , DO

Surgery - Vascular Surgery

NPI 1811936982

Doctor of Osteopathic Medicine (D.O.)

Dr. John Baber , MD

Surgery - Vascular Surgery

NPI 1750607453

Doctor of Medicine (M.D.)

Dr. Kevin Major , MD

Surgery - Vascular Surgery

NPI 1457383366

Doctor of Medicine (M.D.)

Dr. Heather Matheny , MD

Surgery - Vascular Surgery

NPI 1912403809

Doctor of Medicine (M.D.)

Dr. Karen Quirk , MD

Surgery - Vascular Surgery

NPI 1639363138

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

10 Historical Events
πŸ“
Updated Practice Location May 05, 2026

Registered at 2841 N VENTURA RD STE 200, OXNARD, CA 930362213 (Tel: 8059836233)

🏒
Secondary Practice Location Registered May 05, 2026

Additional practice office at 484 Mobil Ave Ste 23, Camarillo, CA 930106362

πŸ“
Updated Practice Location February 16, 2026

Registered at 2841 N VENTURA RD, OXNARD, CA 930362213 (Tel: 8059836233)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) February 16, 2026

Physician Assistant

βœ…
NPI Profile Active December 10, 2025

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) December 10, 2025

Registered at 16200 AMBER VALLEY DR, WHITTIER, CA 906044051 (Tel: 5629478755)

πŸ“
Business Mailing Address (Initial Record) December 10, 2025

Registered at 16200 AMBER VALLEY DR, WHITTIER, CA 906044051

πŸ‘€
Provider Name / Credentials (Initial Record) December 10, 2025

Recorded as MELISSA MARTINEZ

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) December 10, 2025

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration December 10, 2025

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1528922085
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 10, 2025
Last Update: May 05, 2026
Sole Proprietor: No

Other Physician Assistants in Oxnard

All Physician Assistants in Oxnard

Mailing Address

16200 Amber Valley Dr

Whittier, CA 906044051

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.