Doctors and health care providers in Orange, CA
13,245 individual NPPES records list a practice address in Orange, 11th of 812 California cities. The largest group is behavior technician: 4,271, 32% of the city's records, against 18% across California. Page 209 of 265.
The 8 largest groups in Orange
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Orange in California
- Rank in California11th of 812 cities by records
- Share of the state1.4% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups42% of all records
- Behavior Technician rank7th of the 10 California cities with the most
Compared with California as a whole, Orange has 7.3× the state's share of other technician records and 0.43× its share of physical therapist records.
Providers in Orange, alphabetically
- Robert Rowe, M.D.Emergency Medicine Physician1043674682
- Kevin Rowen, PSYDClinical Psychologist1275202558
- Marshall Rowen, M.D.Diagnostic Radiology Physician1497754907
- Ann Rowley, MDDiagnostic Radiology Physician1154050326
- Christina Rowley, MSClinical Child & Adolescent Psychologist1043768195
- Osbaldo RubalcavaBehavior Technician1366162117
- Sofia RubalcavaBehavior Technician1659182772
- Andrea Rubin, MFTMarriage & Family Therapist1528265162
- Benjamin Rubin, MDSports Medicine (Orthopaedic Surgery) Physician1225025331
- Elyssa Rubin, M.D.Pediatric Hematology & Oncology Physician1578738282
- Erika RubinoBehavior Technician1063293702
- Alex RubioMental Health Counselor1497471874
- Elizabeth RubioSpeech-Language Pathologist1770044604
- Lauren RubioBehavior Technician1316873813
- Lydia RubioCase Manager/Care Coordinator1750562641
- Mahyda Rubio, ELECTROLOGISTTechnician/Technologist1235865494
- Mariah RubioBehavior Technician1851088892
- Sofia RubioBehavior Technician1588412522
- Yarely RubioBehavior Technician1548130008
- Lloyd Rucker, MDInternal Medicine Physician1407950090
- Pamela Rudkin, M.A., PPSSchool Psychologist1912637778
- Scott Rudkin, MDEmergency Medicine Physician1003996257
- Melissa Rudolph, MDEmergency Medicine Physician1922262898
- O'Neil RudolphBehavior Technician1063121838
- Gabriela RuelasRehabilitation Practitioner1093954307
- Gary Ruelas, D.O., PH.D.Neuromusculoskeletal Medicine & OMM Physician1154461549
- Savannah RuelasBehavior Technician1649957689
- Phoopa RuengnirundonBehavior Technician1487471314
- Riccardo Ruggiero, REGISTERED NURSERegistered Nurse1720575590
- Joseph Ruggio, MDCardiovascular Disease Physician1124023163
- Donald Ruhland, M.D.Anesthesiology Physician1760455604
- Adilene RuizMarriage & Family Therapist1124918032
- Aholibama Ruiz, PHDClinical Neuropsychologist1407745391
- Beverly RuizBehavior Technician1285494831
- Brittany RuizLicensed Psychiatric Technician1700526597
- Bryana RuizStudent in an Organized Health Care Education/Training Program1780410431
- Cara Ruiz, M.D.Pediatrics Physician1457458135
- Carla RuizBehavior Technician1538097431
- Christian Ruiz, MDEmergency Medicine Physician1841795283
- Crystal RuizBehavior Technician1194587691
- David RuizMental Health Counselor1932315553
- Evelyn RuizOther Technician1609474907
- Geraldine Ruiz, DDSPediatric Dentistry1598102790
- Giselle RuizOther Technician1538741046
- Janine Ruiz, CNM, WHNP, MSNMidwife1275486417
- Jasmine RuizNutrition Education Nutritionist1013861764
- Jisel RuizBehavior Technician1851008437
- Juan Ruiz, MABehavior Analyst1427473446
- Michael RuizMental Health Counselor1548849300
- Oscar RuizSchool Counselor1649419813
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Orange, California appears in the CMS National Plan and Provider Enumeration System with 13,245 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Orange - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Orange practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Orange is weighted toward Behavior Technician (4,271 clinicians, followed by Student in an Organized Health Care Education/Training Program with 870 and Marriage & Family Therapist with 424). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to California's population, Orange reports roughly 34 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.
Of California's most common specialties, Case Manager/Care Coordinator is the most prominent one with no provider currently listing a Orange practice address, a coverage gap Orange patients typically fill by traveling to a larger nearby hub.
For Orange patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Orange, CA?
There are 13,245 registered healthcare providers in Orange, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Orange?
The most common specialties in Orange are Behavior Technician, Student in an Organized Health Care Education/Training Program, Marriage & Family Therapist, Clinical Social Worker, Mental Health Counselor. Behavior Technician has the most providers with 4,271.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.