Healthcare Providers & Facilities in Santa Ana, CA
Public healthcare directory of 8,953 individual practitioners and 1,713 healthcare facilities located in Santa Ana, California.
Medical Specialties in Santa Ana
Select a specialty to view practitioner listings, practice locations, and qualifications.
Student in an Organized Health Care Education/Training Program
Pharmacist
Family Medicine
Dentist - General Practice
Physical Therapist
Dentist
Physician Assistant
Nurse Practitioner - Family
Psychologist - Clinical
Occupational Therapist
Optometrist
Pediatrics
All Specialties in Santa Ana
Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 214 more with at least one listed practitioner. Number of practitioners in brackets.
Allopathic & Osteopathic Physicians
- Anesthesiology (33)
- Dermatology (8)
- Internal Medicine - Cardiovascular Disease (10)
- Internal Medicine - Infectious Disease (9)
- Internal Medicine - Interventional Cardiology (6)
- Obstetrics & Gynecology (26)
- Ophthalmology (16)
- Orthopaedic Surgery (24)
- Pathology - Anatomic Pathology & Clinical Pathology (6)
- Physical Medicine & Rehabilitation (6)
- Psychiatry & Neurology - Child & Adolescent Psychiatry (6)
- Psychiatry & Neurology - Psychiatry (52)
- Surgery (8)
- Urology (9)
Behavioral Health & Social Service Providers
- Assistant Behavior Analyst (15)
- Behavior Analyst (165)
- Behavior Technician (1,625)
- Counselor (247)
- Counselor - Addiction (Substance Use Disorder) (407)
- Counselor - Mental Health (685)
- Counselor - Professional (26)
- Counselor - School (9)
- Marriage & Family Therapist (678)
- Psychologist (64)
- Psychologist - Forensic (11)
- Psychologist - School (8)
- Social Worker (216)
- Social Worker - Clinical (434)
- Social Worker - School (20)
Chiropractic Providers
- Chiropractor (78)
Dental Providers
Dietary & Nutritional Service Providers
Nursing Service Providers
- Licensed Psychiatric Technician (18)
- Licensed Vocational Nurse (146)
- Registered Nurse (281)
- Registered Nurse - Case Management (9)
- Registered Nurse - Community Health (124)
- Registered Nurse - General Practice (7)
- Registered Nurse - Psychiatric/Mental Health (14)
- Registered Nurse - Psychiatric/Mental Health, Adult (23)
Nursing Service Related Providers
Other Service Providers
- Acupuncturist (33)
- Case Manager/Care Coordinator (198)
- Community Health Worker (198)
- Health & Wellness Coach (17)
- Health Educator (14)
- Peer Specialist (82)
- Specialist (53)
Physician Assistants & Advanced Practice Nursing Providers
- Nurse Anesthetist, Certified Registered (6)
- Nurse Practitioner (43)
- Nurse Practitioner - Acute Care (12)
- Nurse Practitioner - Adult Health (15)
- Nurse Practitioner - Pediatrics (6)
- Nurse Practitioner - Psychiatric/Mental Health (57)
- Nurse Practitioner - Women's Health (7)
- Physician Assistant - Medical (44)
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Speech, Language and Hearing Service Providers
Technologists, Technicians & Other Technical Service Providers
Featured Healthcare Providers in Santa Ana
Practitioner profiles in Santa Ana, CA with recent CMS Medicare or Open Payments data.
Dr. Joseph Kim , DDS
Dentist - General Practice
Dr. Hai Nguyen , MD
Internal Medicine
Dr. Trevor Muirhead , MD
Dermatology
Carolina Zayas , RD
Dietitian, Registered
Dr. Michal Plechas , MD
Plastic Surgery
Dr. Crystal Fame , DO
Family Medicine
Largest Cities in California
Other California cities with a full directory, by the number of active practitioners listed in NPPES.
How Santa Ana compares with the U.S.
Compared with the U.S. as a whole, Santa Ana has more clinicians in Family Medicine - Adult Medicine (5.1x), clinicians in General Practice (2.3x) and clinicians in Nurse Practitioner - Primary Care (2.1x) per 100,000 residents.
It has fewer clinicians in Emergency Medicine (26% of the U.S. rate), clinicians in Internal Medicine (39%) and clinicians in Radiology - Diagnostic Radiology (46%) per 100,000 residents.
Santa Ana has 2,865 active clinicians per 100,000 residents, compared with 2,198 for the U.S.
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.
87% of clinicians in Santa Ana listed in the CMS Medicare file (681 of 786) accept Medicare assignment. That is similar to the California share of 91%.
Only 786 of 8,953 active clinicians in Santa Ana appear in the CMS Medicare file, so this share describes that smaller group.
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.
24% of clinicians in Santa Ana listed in the CMS Medicare file (191 of 786) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the California share of 28%.
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).
Santa Ana CMS Healthcare & Financial Disclosures
CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Santa Ana, CA
Healthcare operations in Santa Ana, CA encompass 8,953 active individual practitioners and 1,713 registered medical facilities across 245 clinical specialties.
According to CMS Medicare Part D analytics for 2024, prescription drug volume in Santa Ana accounts for $124.4 Million across 1,110,503 prescription claims. 1,468 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $1.1 Million in payments reported by companies to 607 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.