2026 data CMS NPPES NUCC Taxonomy

Doctors in Monrovia, CA

Compiled from official public sources by the PlainDoctor editorial team.

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

15,779
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
14,977 providers
California
State
CA

15,779 healthcare providers across 20 specialties

Monrovia, California appears in the CMS National Plan and Provider Enumeration System with 15,779 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 Monrovia - 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 Monrovia 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 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Monrovia is weighted toward Behavior Technician (14,977 clinicians, followed by Behavior Analyst with 116 and Marriage & Family Therapist with 81). 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, Monrovia reports roughly 40.5 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.

Within California, Monrovia ranks #8 of 805 cities tracked by provider count, accounting for 1.7% of the state's registered providers. Of California's most common specialties, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Monrovia practice address, a coverage gap Monrovia patients typically fill by traveling to a larger nearby hub.

For Monrovia patients, this directory is most useful as a starting shortlist, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

15,779
Providers
20
Specialties
#8
of 805 CA cities
1.7%
of CA providers
40.5
Per 100K (state)

Which specialties are most common in Monrovia

Behavior Technician 14,977
Behavior Analyst 116
Marriage & Family Therapist 81
Speech-Language Pathologist 48
Mental Health Counselor 39
Student in an Organized Health Care Education/Training Program 37
Pharmacist 33
Genetic Counselor (M.S.) 28
Rehabilitation Practitioner 24
Case Manager/Care Coordinator 21
Clinical Social Worker 21
Physical Therapist 16
Optometrist 16
Pediatric Occupational Therapist 15
Assistant Behavior Analyst 14
Speech-Language Assistant 13
Licensed Vocational Nurse 12
General Practice Dentistry 11
Dentist 11
Licensed Psychiatric Technician 10

Healthcare Providers (Page 207)

Name
Megan O'Brien
Behavior Technician
Timothy O'Brien
Behavior Technician
Bernadette O'Connell
Behavior Technician
Claire O'Connell
Behavior Technician
Marissa O'Connor
Behavior Technician
Carol O'Flaherty
Behavior Analyst
Skyler O'Hanley
Behavior Technician
Kathryn O'Hara
Behavior Technician
Susanne O'Larey
Behavior Technician
Tori O'Neal
Behavior Technician
Aidan O'Neill
Behavior Technician
Castea O'Shea
Behavior Technician
Charlene O'Sullivan-Kloppenburg
Behavior Technician
Arlene Obando
Behavior Technician
Kamea Obando
Behavior Technician
Kimberly Obando-Cruz
Behavior Technician
Jennifer Oberlander
Behavior Technician
Anita Obi
Behavior Technician
Jeweliana Obregon
Behavior Technician
Dora Obrien
Behavior Technician
Shelby Obrien
Behavior Technician
Angel Ocampo
Behavior Technician
Jeremy Ocampo
Behavior Technician
Patricia Ocampo
Behavior Technician
Maribel Ocampo Brito
Behavior Technician
Shaina Ocasio
Behavior Technician
Stephanie Oceane
Behavior Technician
Valeria Oceguera
Behavior Technician
Yvette Oceguera Olah
Behavior Technician
Julianna Oceguera-Blanco
Behavior Technician
Alejandra Ochoa
Behavior Technician
Christina Ochoa
Behavior Technician
Ebonnie Ochoa
Behavior Technician
Evelyn Ochoa
Mental Health Counselor
Gloria Ochoa
Behavior Technician
Jessica Ochoa
Behavior Technician
Jocelyn Ochoa
Behavior Technician
Maria Ochoa
Behavior Technician
Sophia Ochoa
Behavior Technician
Xavier Ochoa
Behavior Technician
Yancy Ochoa Silva
Behavior Technician
Diego Ochoa-Bermudez
Behavior Technician
Gia Ochsenbein
Behavior Technician
Skyy Ochsner
Behavior Technician
Kristy Oden
Behavior Technician
Laney Oden
Behavior Technician
Kaliyah Odom
Behavior Technician
David Oester
Behavior Technician
Rebecca Oestreich
Behavior Technician
Henrietta Offei Awuku
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 Monrovia, CA?
There are 15,779 registered healthcare providers in Monrovia, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Monrovia?
The most common specialties in Monrovia are Behavior Technician, Behavior Analyst, Marriage & Family Therapist, Speech-Language Pathologist, Mental Health Counselor. Behavior Technician has the most providers with 14,977.

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 PlainDoctor editorial team.