2026 data CMS NPPES NUCC Taxonomy

Doctors in Orange, CA

Active healthcare providers in Orange sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

13,245
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
4,294 providers
California
State
CA

Where this city sits in the corpus

Orange ranks 11th among 812 California cities by CMS provider count, holding 1.4% of the state's NPIs, led by Behavior Technician.

13,245
NPPES providers in city
11th
of 812 CA cities
1.4%
of California providers
43.2%
in top 3 specialties

Orange ranks #7 of 10 California cities for Behavior Technician.

Where Orange ranks among California cities

Provider count vs every California city in CMS NPPES (812 cities)

13,245 Top 1% higher than 99% of 812 cities

0–200: 396 cities (49%). Below this entry. 200–400: 108 cities (13%). Below this entry. 400–600: 48 cities (6%). Below this entry. 600–800: 40 cities (5%). Below this entry. 800–1,000: 32 cities (4%). Below this entry. 1,000–1,200: 18 cities (2%). Below this entry. 1,200–1,400: 15 cities (2%). Below this entry. 1,400–1,600: 17 cities (2%). Below this entry. 2K+: 138 cities (17%). This entry sits in this band. This city 0 2K+ California cities (providers), bucketed by value

Each bar is a band; taller bars hold more cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS National Plan & Provider Enumeration System (NPPES) · 2026

Specialty mix in Orange

Share of the city's NPPES registrations by NUCC taxonomy

providers

What this shows Behavior Technician is the largest specialty (4,294 providers, 32.4% of the city), followed by Student in an Organized Health Care Education/Training Program.

Source CMS NPPES · city_top_specialties As of 2026

City vs state specialty index

Specialties Orange has more, and fewer, of than California average

Each multiple is this city's share of a specialty divided by that specialty's average share across California , Orange over-indexes other technician at 8.7× the state average and under-indexes physical therapist at 0.43×. This reflects local practice structure, not care quality.

More common here than California average

Less common here than California average

How to read this directory & data limitations

Orange, California appears in the CMS National Plan and Provider Enumeration System with 13,245 registered healthcare providers spanning 20 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 (4,294 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,027 and Marriage & Family Therapist with 401). 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.

Which specialties are most common in Orange

Healthcare Providers (Page 13)

Name
Raul Armenta Martinez
Behavior Technician
Donna Armfield Hume, L.C.S.W.
Clinical Social Worker
Justin Armond
Other Technician
Christopher Armstrong, M.D.
Surgery Physician
Ethan Armstrong
Behavior Technician
Jaiden Armstrong
Behavior Technician
Jeffrey Armstrong, M.D.
Pediatrics Physician
Julia Armstrong, MA, CCC-SLP
Speech-Language Pathologist
William Armstrong, MD
Otolaryngology Physician
Christine Arnaldo, M.D.
Pediatrics Physician
Kristin Arnold
Behavior Technician
Tierra Arnold
Behavior Technician
Leslie Aroche
Rehabilitation Practitioner
Gabriel Arom, MD
Otolaryngology Physician
Melissa Aromin, M.D.
Pediatric Emergency Medicine (Pediatrics) Physician
Manu Arora
Dentist
Millie Arora
Internal Medicine Physician
Neelu Arora, M.D.
Obstetrics & Gynecology Physician
Michael Arquilla, M.D.
Specialist
Ashley Arreaga Rodas
Behavior Technician
Francine Arredondo, LPT
Mental Health Counselor
Roberto Arredondo
Behavior Technician
Sarah Arredondo
Behavior Technician
Frida Arreola
Behavior Technician
Gabriel Arreola
Marriage & Family Therapist
Jesse Arreola
Behavior Technician
Destiny Arriaga
Behavior Technician
Jasmine Arriaga, PPS
School Counselor
Antonio Arrieta, M.D.
Pediatric Infectious Diseases Physician
Jonathan Arroyave, BS, PTA
Physical Therapy Assistant
Alma Arroyo
Marriage & Family Therapist
Alyssa Arroyo
Behavior Technician
Cathleen Arroyo, M.ED., BCBA
Behavior Analyst
Fabiola Arroyo, LMFT
Marriage & Family Therapist
Jacqueline Arroyo
Behavior Technician
Nayeli Arroyo
Other Technician
Ruth Arroyo, RN
Registered Nurse
Miriam Arroyo Hernandez
Behavior Technician
Latika Arsecularatne, M.D.
Family Medicine Physician
Aysha Arshad
Student in an Organized Health Care Education/Training Program
Denise Arteaga
Counselor
Elizabeth Arteaga
Clinical Social Worker
Matthew Arteaga
Physical Therapist
Zhaohui Arter, MD
Hematology & Oncology Physician
Daniel Artiga, MD
Emergency Medicine Physician
Conrad Artiss
Behavior Technician
Catherine Artoun, D.O.
Student in an Organized Health Care Education/Training Program
Kyleigh Arvelo
Behavior Technician
Stacy Arvizu
Mental Health Counselor
Malik Aryan
Behavior Technician

Nearby Cities in California

Other California cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Orange, CA?
There are 13,245 registered healthcare providers in Orange, CA, covering 20 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, Mental Health Counselor, Clinical Social Worker. Behavior Technician has the most providers with 4,294.
Related guides

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-27.