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VIVIAN LO PA-C
NPI 1003167453
Physician Assistant in Concord, CA

Active since September 25, 2012PECOS Enrolled
2481 PACHECO ST, CONCORD, CA 94520(925) 680-8933 Get Directions Write a Review

NPPES record last updated: September 25, 2012. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Vivian Lo Pa-c NPPES

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

VIVIAN LO PA-C (NPI 1003167453) is an individual physician assistant in Concord, California, licensed in California (PA22434) and active in the NPI registry since September 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003167453
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameVIVIAN LOCredential: PA-C
Location Address2481 PACHECO STConcord, CA 94520-2019
Mailing Address2481 Pacheco StConcord, CA 94520-2019 · (925) 680-8933
Phone(925) 680-8933
Sole ProprietorNo
Enumeration DateSeptember 25, 2012
✔ NPI 1003167453 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 · PA22434
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.
2481 PACHECO ST, Concord, CA 94520
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Vivian Lo 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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
79 services47 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
60 services14 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94520 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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 3

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

FRED J VON STIEFF MD A PROFESSIONAL CORPORATION
Family Medicine (Addiction Medicine)
2481 PACHECO ST
CONCORD, CA 94520
Contra Costa County (925) 680-8933
DR. FRED JOHN VONSTIEFF M.D.
Family Medicine (Addiction Medicine)
2481 PACHECO ST
CONCORD, CA 94520
Contra Costa County (925) 680-8933
KRISTINA CARPENTER D.O.
Family Medicine
2481 PACHECO ST
CONCORD, CA 94520
Contra Costa County (925) 680-8933

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 Vivian Lo's NPI number?

The NPI number for Vivian Lo is 1003167453. It was assigned to this individual provider in the NPPES registry on September 25, 2012.

Where is Vivian Lo located?

Vivian Lo practices at 2481 Pacheco St, Concord, CA 94520. The listed phone number is (925) 680-8933.

What is Vivian Lo's specialty?

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

Is Vivian Lo enrolled in Medicare?

Yes. Vivian Lo is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Vivian Lo was last updated on September 25, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.