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 167 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
- Morgan Nelson, LCSWClinical Social Worker1194570689
- Nicole NelsonBehavior Technician1114566411
- Shauna Nelson, FNPNurse Practitioner1619532546
- Monica Nena, R.N.Registered Nurse1659805034
- Samantha NereeBehavior Technician1053031211
- Leo NeriBehavior Technician1225835671
- Christian NeryBehavior Technician1770328213
- Travis Nesbit, MDInternal Medicine Physician1316381692
- Chanel Nettle, MAPsychologist1982384848
- Emma NeubauerBehavior Technician1962196048
- Steven Neudorf, MDPediatric Hematology & Oncology Physician1598848624
- Catherine Neumann, MS, LCGCGenetic Counselor (M.S.)1124553284
- Kristen Neumann, CNPNurse Practitioner1225562853
- Gerardo NevarezClinical Social Worker1407109606
- Klarissa NevarezBehavior Technician1063334639
- Morten NeveAnesthesiology Physician1851814164
- Emily NevinPediatrics Physician1932543451
- Emily NewBehavior Technician1023811809
- Hannah Newburg, M.D.Obstetrics & Gynecology Physician1699020792
- Dart NewbyPediatrics Physician1649739616
- Erin Newman, M.D.Internal Medicine Physician1043542871
- Richard S Newman, MDClinical Pathology/Laboratory Medicine Physician1043390214
- Qui Cheun Ng, DODiagnostic Radiology Physician1528697257
- Wendy Ng, MDPlastic and Reconstructive Surgery Physician1942680012
- Alexander Ngo, NPNurse Practitioner1841862109
- Angelina NgoBehavior Technician1073217584
- Bich Ngo, R.PH, CDMPharmacist1932237419
- Deanna Ngo, OTR/L, HTC, PAMSHand Occupational Therapist1003337361
- Derek NgoBehavior Technician1033054754
- Jasmine NgoRegistered Nurse1841186715
- Jeffrey NgoBehavior Technician1699552133
- Jennifer Ngo, D.D.S.Dentist1881026276
- Kevin NgoBehavior Technician1043144140
- Kirsten NgoBehavior Technician1902658958
- Mandy NgoBehavior Technician1033986195
- Michelle Ngo, OTRPhysical Rehabilitation Occupational Therapist1790492247
- Monica Ngo, MDStudent in an Organized Health Care Education/Training Program1083408298
- Nathan NgoPsychiatric/Mental Health Nurse Practitioner1043935380
- Nicole NgoPediatric Occupational Therapist1376803379
- Priscilla NgoBehavior Technician1164300414
- Thanh NgoBehavior Technician1619720919
- Tri Ngo, M.D.Diagnostic Radiology Physician1073804837
- Tuan Ngo, MDAnesthesiology Physician1841752102
- Van NgoCommunity Health Worker1275118366
- Yen-Vy NgoBehavior Technician1841166592
- Quyen Ngo-Metzger, MDInternal Medicine Physician1306926571
- Aaron NguyenBehavior Technician1871205252
- Aibys NguyenBehavior Technician1194672535
- Ailene Nguyen, MDStudent in an Organized Health Care Education/Training Program1033799309
- Ailynn Nguyen, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1366278368
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.