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Vivian Do

Physician Assistant β€’ Orange, CA

Active NPI 1033064373 Individual Practitioner Female Practitioner
Practice location in NPPES

1140 W La Veta Ave Ste 640
Orange, CA 928684228

Call 7145643300 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

1140 W La Veta Ave Ste 640

Orange, CA 928684228

Telephone 7145643300
Organization at the Same NPPES Address or Phone
Orange County Heart Institute And Research Center A Medical Group Facility NPI 1265463608

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

Industry payments (Open Payments)

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

Guide: How to read an Open Payments record

NPI first issued

2026

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.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

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; 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.

Guide: How Medicare covers telehealth

Can order Medicare-covered services

CMS lists Vivian Do 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 Orange and California

181 active clinicians are listed under Physician Assistant with a practice address in Orange, CA (14,458 in California).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Orange

16.6% of these 181 clinicians have the CMS telehealth indicator.

57.5% of these 181 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, 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: 2026-03-05
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES CA 68010

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 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.

Clinicians Sharing This Practice Address or Phone

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

11 listed
Dr. Hossein Alimadadian , MD

Internal Medicine - Cardiovascular Disease

NPI 1285664029

Doctor of Medicine (M.D.)

Dr. Maged Azer , MD

Internal Medicine - Cardiovascular Disease

NPI 1992730709

Doctor of Medicine (M.D.)

Dr. Tyson Cobb , MD

Internal Medicine - Interventional Cardiology

NPI 1710982061

Doctor of Medicine (M.D.)

Dr. Brian Kolski , MD

Internal Medicine - Interventional Cardiology

NPI 1851449896

Doctor of Medicine (M.D.)

Dr. Thuy Le , MD

Internal Medicine - Cardiovascular Disease

NPI 1588705750

Doctor of Medicine (M.D.)

Dr. Jay Lee , MD

Internal Medicine - Cardiovascular Disease

NPI 1053346858

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated March 02, 2026.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from March 2026 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1033064373
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 02, 2026
Last Update: March 05, 2026
Sole Proprietor: No

Other Physician Assistants in Orange

All Physician Assistants in Orange

Mailing Address

1140 W La Veta Ave Ste 640

Orange, CA 928684228

Phone: 7145643300

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.