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BRANDON DION FENNELL MD
NPI 1720780703
Hospitalist in San Francisco, CA

Active since March 21, 2023PECOS Enrolled
505 PARNASSUS AVE # M1480, SAN FRANCISCO, CA 94143(415) 476-1000 Get Directions Write a Review

NPPES record last updated: July 2, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 31, 2026, Dec 16, 2024, Mar 21, 2023 (3 updates tracked since 2023).

About Brandon Dion Fennell Md NPPES

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

BRANDON DION FENNELL MD (NPI 1720780703) is an individual hospitalist provider in San Francisco, California, licensed in California (A200947) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1720780703
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameBRANDON DION FENNELLCredential: MD
Location Address505 PARNASSUS AVE # M1480San Francisco, CA 94143-2204
Mailing Address505 Parnassus Ave # M1480San Francisco, CA 94143-2204
Phone(415) 476-1000
Sole ProprietorNo
Enumeration DateMarch 21, 2023
Last NPPES UpdateJuly 2, 20263 updates tracked since enumeration
NPPES CertifiedJuly 2, 2026
✔ NPI 1720780703 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in CA · A200947
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License A200947 (CA)
505 PARNASSUS AVE # M1480, San Francisco, CA 94143
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Brandon Dion Fennell Md 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.

Medicare Billing Reassignments

3

Medicare enrollment records show Brandon Fennell reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of California
0.1 mi
Endocrinology, Diabetes & Metabolism
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 2,112 clinicians in this Medicare group
NPI 1376613943 (415) 353-2350
Ucsf Medical Group Business Services
0.1 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808
University Of California San Francisco
0.1 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1164512851 (415) 476-1000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
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 20

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

PRAJWAL GOWDA
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE # M1480
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
KATHERINE WU MD, PHD
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE # M1480
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
MAX ROBINSON WEISS
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE # M1480
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
JOHANNA STEELE BALAS
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE # M1480
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
HALEY GAMBOA MS
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE # M1480
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
DR. ELYSSE ALI SANTANA MD
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE # M1480
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
AUSTIN DAVID PEER MD, MPH
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE # M1480
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
MARIA JOSE RUIZ MD, MPH
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE # M1480
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528

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 Brandon Fennell's NPI number?

The NPI number for Brandon Fennell is 1720780703. It was assigned to this individual provider in the NPPES registry on March 21, 2023.

Where is Brandon Fennell located?

Brandon Fennell practices at 505 Parnassus Ave # M1480, San Francisco, CA 94143. The listed phone number is (415) 476-1000.

What is Brandon Fennell's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Brandon Fennell enrolled in Medicare?

Yes. Brandon Fennell is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Brandon Fennell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brandon Fennell reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and University Of California San Francisco (San Francisco, CA). Each 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 Brandon Fennell'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 Brandon Fennell was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.