Surgery - Surgical Oncology Specialists in Orange, CA
Browse 11 Surgery - Surgical Oncology providers listed in NPPES with a practice address in Orange, California.
How Orange compares with the U.S.
Orange has 8.0 clinicians in Surgery - Surgical Oncology per 100,000 residents, 13.5 times the U.S. rate of 0.6.
That is 11 active clinicians in Surgery - Surgical Oncology with a practice address in Orange, for a population of 138,266.
The California rate is 0.6 per 100,000 residents.
What these numbers mean
Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.
A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.
City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.
Too few clinicians in Surgery - Surgical Oncology in Orange are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).
Valentina Bonev
Surgery - Surgical Oncology
Dr. John A Butler , MD
Surgery - Surgical Oncology
Dr. Oliver S. Eng , MD
Surgery - Surgical Oncology
Dr. James G Jakowatz , MD
Surgery - Surgical Oncology
Dr. Karen T Lane , MD
Surgery - Surgical Oncology
Dr. Erin Huan Lin , DO
Surgery - Surgical Oncology
Dr. Alexandra Lopez-Aguiar , MD
Surgery - Surgical Oncology
Dr. Melissa Ling Mao , MD
Surgery - Surgical Oncology
Dr. Thuy Tran , MD
Surgery - Surgical Oncology
Dr. Holly Minsun Yong , MD
Surgery - Surgical Oncology
Dr. Glenn Roy Allison , MD
Surgery - Surgical Oncology
Frequently Asked Questions about Surgery - Surgical Oncology in Orange
Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.
This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.
Other Specialties in Orange
- Student in an Organized Health Care Education/Training Program 871
- Social Worker - Clinical 309
- Pharmacist 228
- Physician Assistant 181
- Dentist 147
- Nurse Practitioner 147
- Nurse Practitioner - Family 137
- Physical Therapist 133
- Dentist - General Practice 107
- Nurse Anesthetist, Certified Registered 77
- Occupational Therapist 62
- Chiropractor 60
Surgery - Surgical Oncology Specialists in Other California Cities
Cities with the most listed practitioners first.