JASON JUSTIN PA-C
NPI 1265967079
Physician Assistant in Mill Valley, CA

Active since April 29, 2017PECOS Enrolled
750 REDWOOD HWY FRONTAGE RD STE 1204, MILL VALLEY, CA 94941(415) 384-4778 Get Directions Write a Review

NPPES record last updated: September 9, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 9, 2025, Nov 18, 2021, Nov 30, 2017 and 1 more (4 updates tracked since 2017).

About Jason Justin Pa-c NPPES

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

JASON JUSTIN PA-C (NPI 1265967079) is an individual physician assistant in Mill Valley, California, licensed in California (PA54845) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1265967079
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameJASON JUSTINCredential: PA-C
Location Address750 REDWOOD HWY FRONTAGE RD STE 1204Mill Valley, CA 94941-2483
Mailing Address434 S San Vicente Blvd # 100Los Angeles, CA 90048-4108
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateApril 29, 2017
Last NPPES UpdateSeptember 9, 20254 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2025
NPI 1265967079 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in CA · PA54845
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.
Also ListedPhysician Assistant · SurgicalTaxonomy 363AS0400X · License PA54845 (CA)
750 REDWOOD HWY FRONTAGE RD STE 1204, Mill Valley, CA 94941

Secondary Practice Locations 2

Location 134 Mark West Springs RdSanta Rosa, CA 95403-1766 · Phone (707) 546-1922 · Fax (707) 569-8620
Location 2434 S San Vicente Blvd # 100Los Angeles, CA 90048-4108 · Phone (310) 360-6780

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Jason Justin Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9436409067
PECOS Enrollment IDI20180831002301
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 7

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
370 services76 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
109 services91 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
86 services71 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
65 services59 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
57 services57 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
31 services31 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94941 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
$104.67 typical visit price
range $69.07 – $202.63
Typical copayment $26.16 (range $17.26 – $50.65)
Most-billed visit code 99203
Established Patient
$85.00 typical visit price
range $23.44 – $166.64
Typical copayment $21.25 (range $5.86 – $41.66)
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 6

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

Emergency Medicine
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Physician Assistant
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Nurse Practitioner (Family)
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Physician Assistant
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Physician Assistant (Medical)
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Nurse Practitioner (Pediatrics)
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941

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 Jason Justin's NPI number?

The NPI number for Jason Justin is 1265967079. It was assigned to this individual provider in the NPPES registry on April 29, 2017.

Where is Jason Justin located?

Jason Justin practices at 750 Redwood Hwy Frontage Rd Ste 1204, Mill Valley, CA 94941. The listed phone number is (415) 384-4778.

What is Jason Justin's specialty?

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

Is Jason Justin enrolled in Medicare?

Yes. Jason Justin is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Jason Justin was last updated on September 9, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.