Anesthesiology Specialists in Fontana, CA
Browse 28 Anesthesiology providers listed in NPPES with a practice address in Fontana, California.
How Fontana compares with the U.S.
Fontana has 13 clinicians in Anesthesiology per 100,000 residents, about 73% of the U.S. rate of 18.
That is 28 active clinicians in Anesthesiology with a practice address in Fontana, for a population of 214,169.
The California rate is 19 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.
100% of clinicians in Anesthesiology in Fontana listed in the CMS Medicare file (17 of 17) accept Medicare assignment. That is similar to the California share of 97%.
What is Medicare assignment?
A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.
Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.
None of the 17 clinicians in Anesthesiology in Fontana listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.
About the telehealth indicator
The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.
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. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).
Anesthesiology Medicare (PECOS) Enrollment & Ordering Eligibility
Medicare enrollment and order/referring eligibility listed by CMS for Anesthesiology practitioners in Fontana, CA
Dr. Kevin Lay , MD
Anesthesiology
Dr. Dennis M. Lindeborg , MD
Anesthesiology
Dr. Charley B. Berona , MD
Anesthesiology
Dr. Sheng-Chieh Chang , MD
Anesthesiology
Dr. John L Chen , DO
Anesthesiology
Dr. Wynda Wen Ta Chung , MD
Anesthesiology
Dr. Ricardo P. Diaz , MD
Anesthesiology
Dr. Thien T. Doan , MD
Anesthesiology
Dr. Steven John D'sa , MD
Anesthesiology
Dr. Douglas J. Flores , MD
Anesthesiology
Dr. Batool Hajianpour , MD
Anesthesiology
Dr. Amgad Hanna Nashid Hanna , MD
Anesthesiology
Dr. Thelma Z. Korpman , MD
Anesthesiology
Dr. Grace Liu , DO
Anesthesiology
Dr. Niranjan Maganti , MD
Anesthesiology
Dr. Joshua George Milius , MD
Anesthesiology
Na Yon Nam
Anesthesiology
Dr. Benjamin Nguyen , MD
Anesthesiology
Dr. Loc Nguyen , MD
Anesthesiology
Dr. David Chi-Ming Niu , MD
Anesthesiology
Frequently Asked Questions about Anesthesiology in Fontana
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 Fontana
- Pharmacist 228
- Student in an Organized Health Care Education/Training Program 193
- Physician Assistant 97
- Physical Therapist 74
- Nurse Anesthetist, Certified Registered 71
- Nurse Practitioner - Family 69
- Dentist - General Practice 61
- Optometrist 52
- Dentist 49
- Nurse Practitioner 47
- Nurse Practitioner - Psychiatric/Mental Health 25
- Podiatrist - Foot & Ankle Surgery 12
Anesthesiology Specialists in Other California Cities
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