1. Home
  2. Directory
  3. California
  4. San Francisco
  5. Student In An Organized Health Care Education Training Program
  6. NPI Profile

DR. BRIAN FARRELL M.D.
NPI 1255645123
Student in an Organized Health Care Education/Training Program in San Francisco, CA

Active since August 03, 2010PECOS EnrolledAccepts Medicare Assignment
450 STANYAN ST, SAN FRANCISCO, CA 94117(510) 693-1406 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Brian Farrell M.d. NPPES

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

DR. BRIAN FARRELL M.D. (NPI 1255645123) is an individual student in an organized health care education/training program in San Francisco, California and active in the NPI registry since August 2010. He is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1255645123
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameDR. BRIAN FARRELLCredential: M.D.
Location Address450 STANYAN STSan Francisco, CA 94117-1019
Mailing Address450 Stanyan StSan Francisco, CA 94117-1019
Phone(510) 693-1406
Sole ProprietorYes
Medical School CMSOtherGraduated 2009
Enumeration DateAugust 3, 2010
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1255645123 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
450 STANYAN ST, San Francisco, CA 94117
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Brian Farrell M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1951529023
PECOS Enrollment IDI20140903000415
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.

Medicare Billing Reassignment

Medicare enrollment records show Brian Farrell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
1.0 mi
Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1841373800 (415) 833-2200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

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

JESSICA ESPINO MANGALIAG
Student in an Organized Health Care Education/Training Program
450 STANYAN ST
SAN FRANCISCO, CA 94117
San Francisco County (415) 750-5942
FIONA PATRICIA MCCUSKER
Physical Medicine & Rehabilitation
450 STANYAN ST
SAN FRANCISCO, CA 94117
San Francisco County (415) 668-1000
JENNIFER JIMENEZ OTD
Occupational Therapist
450 STANYAN ST
SAN FRANCISCO, CA 94117
San Francisco County (877) 341-7472
JASON DOUGLAS
Occupational Therapist
450 STANYAN ST
SAN FRANCISCO, CA 94117
San Francisco County (415) 668-1000
DARIANNE ZIMMER
Student in an Organized Health Care Education/Training Program
450 STANYAN ST
SAN FRANCISCO, CA 94117
San Francisco County (415) 750-5942
DR. STEPHANIE VON FISCHER SEIKI M.D.
Internal Medicine
450 STANYAN ST
SAN FRANCISCO, CA 94117
San Francisco County (415) 750-5909
ALEXA POETER
Speech-Language Pathologist
450 STANYAN ST
SAN FRANCISCO, CA 94117
San Francisco County (415) 722-6965
LEWIS PHILIP SCHENDOWICH MD
Student in an Organized Health Care Education/Training Program
450 STANYAN ST
SAN FRANCISCO, CA 94117
San Francisco County (415) 750-5942

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 Brian Farrell's NPI number?

The NPI number for Brian Farrell is 1255645123. It was assigned to this individual provider in the NPPES registry on August 3, 2010.

Where is Brian Farrell located?

Brian Farrell practices at 450 Stanyan St, San Francisco, CA 94117. The listed phone number is (510) 693-1406.

What is Brian Farrell's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Brian Farrell enrolled in Medicare?

Yes. Brian Farrell is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Brian Farrell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brian Farrell reassigns Medicare benefits to Permanente Medical Group Inc (San Francisco, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Brian Farrell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Brian Farrell was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.