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Justin Biddle , NP

Nurse Practitioner β€’ Greenbrae, CA

Active NPI 1477383859 Individual Practitioner Male Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

1350 S Eliseo Dr Ste 200
Greenbrae, CA 949042018

Call 4159255000 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

1350 S Eliseo Dr Ste 200

Greenbrae, CA 949042018

Telephone 4159255000
Organization at the Same NPPES Address or Phone
California Cancer Care, Inc. Facility NPI 1417930744

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

CMS Doctors and Clinicians lists 2 distinct group names: Marin Cancer Care, Inc.; University Of California San Francisco. 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

2024

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

2 years (graduated 2024)

CMS Doctors and Clinicians data list 2024 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

2024

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

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

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)

Justin Biddle 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 Justin Biddle 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 Greenbrae and California

10 active clinicians are listed under Nurse Practitioner with a practice address in Greenbrae, CA (8,363 in California).

Addresses are self-reported to NPPES and may be out of date.

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: 2026-10-15
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES CA 95031004

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

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 - NURSE PRACTITIONER

Medicare Enrollment ID

I20241111002668

Enrollment State Jurisdiction

CA

PECOS Control ID

8820522022

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

Marin Cancer Care, Inc.

1350 S Eliseo Dr, Greenbrae, CA 949042011

Phone: 4159257326

University Of California San Francisco

2330 Post St, San Francisco, CA 941153465

Phone: 4154764029

University Of California San Francisco

505 Parnassus Ave, San Francisco, CA 941432204

Phone: 4154761000

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. Kristin Anderson , MD, MPH

Internal Medicine - Hematology & Oncology

NPI 1962732354

Doctor of Medicine (M.D.), Master of Public Health

NPI 1205937646

Doctor of Medicine (M.D.)

NPI 1053412403

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Dr. Jennifer Lucas , MD

Internal Medicine - Hematology & Oncology

NPI 1619078979

Doctor of Medicine (M.D.)

Dr. Cyrus Mazidi , MD

Internal Medicine - Hematology & Oncology

NPI 1326570771

Doctor of Medicine (M.D.)

Dr. Alex Metzger , MD

Internal Medicine - Hematology & Oncology

NPI 1821070590

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events
πŸ“
Updated Practice Location November 19, 2025

Registered at 1350 S ELISEO DR STE 200, GREENBRAE, CA 949042018 (Tel: 4159255000)

πŸ“
Updated Business Mailing Address November 19, 2025

Registered at 1350 S ELISEO DR STE 200, GREENBRAE, CA 949042018

βœ…
NPI Profile Active August 01, 2024

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) August 01, 2024

Registered at 400 PARNASSUS AVE FL 4, SAN FRANCISCO, CA 941432202 (Tel: 4154764965)

πŸ“
Business Mailing Address (Initial Record) August 01, 2024

Registered at 400 PARNASSUS AVE FL 4, SAN FRANCISCO, CA 941432202

πŸ‘€
Provider Name / Credentials (Initial Record) August 01, 2024

Recorded as JUSTIN BIDDLE, NP

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 01, 2024

Nurse Practitioner (license number reported to NPPES: CA 95031004)

🟒
Initial NPI Registration & Enumeration August 01, 2024

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1477383859
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 01, 2024
Last Update: October 15, 2026
Sole Proprietor: No

Other Nurse Practitioners in Greenbrae

Healthcare providers in Greenbrae

Mailing Address

1350 S Eliseo Dr Ste 200

Greenbrae, CA 949042018

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.