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Anesthesiology Specialists in Santa Ana, CA

Browse 33 Anesthesiology providers listed in NPPES with a practice address in Santa Ana, California.

33 Healthcare Providers

How Santa Ana compares with the U.S.

Santa Ana has 11 clinicians in Anesthesiology per 100,000 residents, about 59% of the U.S. rate of 18.

That is 33 active clinicians in Anesthesiology with a practice address in Santa Ana, for a population of 312,534.

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 Santa Ana listed in the CMS Medicare file (25 of 25) 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 25 clinicians in Anesthesiology in Santa Ana 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 ยท 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 Santa Ana, CA

Source: CMS PECOS
PECOS Enrolled Specialists 27 In Santa Ana, CA
Part B Lab & Imaging Eligible 28 Diagnostic Referrals
DME Ordering Eligible 30 Durable Medical Equipment
Home Health Agency Referrals 28 HHA Ordering Eligible
Showing 1โ€“20 of 33 providers
With recent CMS data first, then Aโ€“Z

Dr. Steven Bui , DO

Anesthesiology

Active NPI Status Accepts Medicare Assignment
1001 N Tustin Ave, Santa Ana, CA 927053502
Phone: 7149533500
NPI Identifier 1508252883
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Dr. Omar S Chowdhry , DO

Anesthesiology

Active NPI Status Accepts Medicare Assignment
1001 N Tustin Ave, Santa Ana, CA 927053502
Phone: 7149533500
NPI Identifier 1972735074
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Dr. Catherine B Chung , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
1001 N Tustin Ave, Santa Ana, CA 927053502
Phone: 7149533515
NPI Identifier 1205820586
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Dr. Jennifer E Engstrom , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
400 N Tustin Ave, Suite 400, Santa Ana, CA 927053813
Phone: 9494171825
NPI Identifier 1619050119
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Dr. Stanley Hoang , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
400 N Tustin Ave Ste 400, Santa Ana, CA 927053850
Phone: 7146195383
NPI Identifier 1922392679
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Dr. Robert Hoo , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
1001 N Tustin Ave, Santa Ana, CA 927053502
Phone: 7148353555
NPI Identifier 1952496218
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Dr. Gene Jang , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
400 N Tustin Ave Ste 400, Santa Ana, CA 927053850
Phone: 7146195383
NPI Identifier 1689107823
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Dr. Ji-Guang Jin , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
1001 N Tustin Ave, Santa Ana, CA 927053502
Phone: 7149533500
NPI Identifier 1053305359
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Dr. Jason Kim , DO

Anesthesiology

Active NPI Status Accepts Medicare Assignment
400 N Tustin Ave, Santa Ana, CA 927053813
Phone: 7146195383
NPI Identifier 1366938953
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Dr. Tan K Le , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
1001 N Tustin Ave, Santa Ana, CA 927053502
Phone: 7149533515
NPI Identifier 1245205475
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Dr. Steve Lee , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
210 N Tustin Ave, Santa Ana, CA 927053807
Phone: 7143471000
NPI Identifier 1417156498
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Yuchen Liu

Anesthesiology

Active NPI Status Accepts Medicare Assignment
400 N Tustin Ave Ste 400, Santa Ana, CA 927053850
Phone: 1461953837
NPI Identifier 1710366059
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Dr. Dustin G Morris , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
400 N Tustin Ave, Santa Ana, CA 927053813
Phone: 7146195391
NPI Identifier 1194822338
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Adrian Jun Yen Ng

Anesthesiology

Active NPI Status Accepts Medicare Assignment
400 N Tustin Ave Ste 400, Santa Ana, CA 927053850
Phone: 7146195383
NPI Identifier 1972044246
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Dr. Jim Nguyen , MD

Anesthesiology

Active NPI Status
2514 S Maddock St, Santa Ana, CA 927045520
Phone: 7146790852
NPI Identifier 1104237742
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Dr. Ronald Nguyen , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
2802 S Diamond St, Santa Ana, CA 927046015
Phone: 7149244830
NPI Identifier 1720436736
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Dr. Lawrence Ong , MD, MENG

Anesthesiology

Active NPI Status Accepts Medicare Assignment
400 N Tustin Ave, Suite 400, Santa Ana, CA 927053813
Phone: 8008882186
NPI Identifier 1316254840
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Dr. Atef E Rafla , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
3200 South Bristol Street, Suite B, Santa Ana, CA 92704
Phone: 7146411111
NPI Identifier 1497796858
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Dr. Matthew Hong Gie Tan , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
1950 E 17th St Ste 200, Santa Ana, CA 927056852
Phone: 7144954050
NPI Identifier 1518527845
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Dr. Russell Kaleo Taylor , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
317 New London Cmn, Santa Ana, CA 927041257
Phone: 9499815643
NPI Identifier 1891006706
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Frequently Asked Questions about Anesthesiology in Santa Ana

How do I check a Anesthesiology practitioner's license?

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.

Why is a practitioner missing from this list?

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.