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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

BRITTANY SULLIVAN M.D.
NPI 1437682804
Surgery - Surgical Oncology in Orange, CA

Active since April 04, 2017
101 THE CITY DR S, ORANGE, CA 92868(714) 456-7890 Get Directions Write a Review

NPPES record last updated: August 18, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 18, 2026, Nov 29, 2021 (2 updates tracked since 2021).

About Brittany Sullivan M.d. NPPES

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

BRITTANY SULLIVAN M.D. (NPI 1437682804) is an individual surgical oncology provider in Orange, California, licensed in Utah (14301643-1205) and active in the NPI registry since April 2017.

NPPES Registry Identity

NPI1437682804
Entity TypeIndividualFemale
Primary Taxonomy2086X0206X
Provider Legal NameBRITTANY SULLIVANCredential: M.D.
Location Address101 THE CITY DR SOrange, CA 92868-3201
Mailing Address101 The City Dr SOrange, CA 92868-3201
Phone(714) 456-7890
Sole ProprietorNo
Enumeration DateApril 4, 2017
Last NPPES UpdateAugust 18, 20262 updates tracked since enumeration
NPPES CertifiedAugust 18, 2026
✔ NPI 1437682804 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Surgical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2086X0206X
License✔ Licensed in UT · 14301643-1205
Definition
A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.
101 THE CITY DR S, Orange, CA 92868
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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.

DR. ANKIT BHUPENDRA PATEL D.O.
Radiology (Diagnostic Radiology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-5113
DR. LAURA CATHERINE SKOCZYLAS MD
Obstetrics & Gynecology
101 THE CITY DR S, BUILDING 56, DEPARTMENT OF OB/GYN
ORANGE, CA 92868
Orange County (714) 456-8224
MICHAEL CHENG DO
Internal Medicine (Rheumatology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7110
AESTHETIC AND PLASTIC SURGERY INSTITUTE
Plastic Surgery
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-2986
JOSEPH VILLARREAL M.D.
Emergency Medicine
101 THE CITY DR S, BUILDING 1A, ROOM 1009
ORANGE, CA 92868
Orange County (714) 456-5239
DEMI TRAN
Psychiatry & Neurology (Neurology)
101 THE CITY DR S, CITY TOWER, SUITE 400
ORANGE, CA 92868
Orange County (171) 456-6693
DR. ISABEL CARLTON CLARK M.D.
Surgery (Trauma Surgery)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7890
DYLAN LUKATO
Emergency Medicine
101 THE CITY DR S
ORANGE, CA 92868
Orange County (415) 218-8041

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 Brittany Sullivan's NPI number?

The NPI number for Brittany Sullivan is 1437682804. It was assigned to this individual provider in the NPPES registry on April 4, 2017.

Where is Brittany Sullivan located?

Brittany Sullivan practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-7890.

What is Brittany Sullivan's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.

When was this NPI record last updated?

The NPPES record for Brittany Sullivan was last updated on August 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days 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.