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 207 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
- Diana Rohn, MSN FNPFamily Nurse Practitioner1518682954
- America RojasBehavior Analyst1043801988
- Dolores Rojas, CPHWCase Manager/Care Coordinator1427325174
- Glynis RojasOccupational Therapy Assistant1043979644
- John-Louis RojasBehavior Technician1497568224
- Justin RojasBehavior Technician1932035334
- Nilly RojasBehavior Technician1164289419
- Odalis RojasBehavior Technician1477239473
- Patricia RojasClinical Social Worker1962684100
- Tihare RojasBehavior Technician1447016878
- Ruby Rojo PerezBehavior Technician1871347294
- Amber RollinsMental Health Counselor1134934896
- Victoria RollinsBehavior Technician1932853397
- Jacqueline RomanBehavior Technician1043914872
- Nazareth RomanBehavior Technician1003674599
- Guadalupe Roman GarciaOther Technician1225644438
- Nicolo RomaniBehavior Technician1700699147
- Tatsumi RomanoAddiction (Substance Use Disorder) Counselor1003572272
- Carlos Romano NunezBehavior Technician1467345298
- Dionne Romano-Austin, BSN, RN, PHNRegistered Nurse1598280208
- Alexander Romero, O.D.Optometrist1427249960
- Amanda Romero, LCSWClinical Social Worker1861266355
- Annie RomeroRegistered Nurse1205754959
- Beatriz RomeroClinical Social Worker1225524416
- Cindy Romero, NONEBehavior Technician1407586787
- Cynthia RomeroBehavior Technician1568021756
- Elizabeth RomeroBehavior Technician1427803212
- Fatima RomeroBehavior Technician1881487684
- Julio RomeroBehavior Technician1013613843
- Leonardo RomeroPeer Specialist1205754025
- Luca RomeroBehavior Technician1508611088
- Matthew RomeroCommunity Health Worker1053107334
- Michelle Romero, M.S.W.Social Worker1487091765
- Pauline RomeroOther Technician1962091041
- Samantha RomeroBehavior Analyst1245795616
- Candice Romley, LCSWClinical Social Worker1528887148
- Jasmine RomoBehavior Technician1528955861
- Linda RomoSocial Worker1326569674
- Viridiana RomoBehavior Technician1780551762
- Patricia Ronald Riba, MDPediatrics Physician1063562908
- Laverne RoneRehabilitation Practitioner1538339353
- Skottlynne RoneySpeech-Language Assistant1467047423
- Tommi RonkBehavior Technician1598578742
- Leland Ronningen, M.D.Urology Physician1164532032
- Daniel RooksBehavior Technician1952176067
- Ezaria RoosBehavior Technician1437000437
- Emilie Roose, RNPediatric Registered Nurse1730940206
- Aracely Roque, PSY. DRehabilitation Practitioner1225296254
- Ivanna RoqueBehavior Technician1699472647
- Jose Roque, M.D.Gastroenterology Physician1154362010
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.