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 209)

Name
Jhay Oliveira
Behavior Technician
Brandinn Oliver
Behavior Technician
Cassidy Oliver
Behavior Technician
Claire Oliver
Behavior Technician
Jennifer Oliver
Behavior Technician
Laura Oliver
Behavior Technician
Marco Oliver
Behavior Technician
Erica Oliveras
Behavior Technician
Alejandra Oliveros
Behavior Technician
Scott Olivett
Behavior Technician
Reagan Olivia
Behavior Technician
Alexandria Olivieri
Behavior Technician
Shaina Olivieri
Behavior Technician
Katie Ollestad
Behavior Technician
Valeria Olmedo
Behavior Technician
Kiara Olmo Velez
Behavior Technician
Ernesto Olmos
Behavior Technician
Jason Olmos
Behavior Technician
Luz Olmos
Behavior Technician
Sami Olmos
Behavior Technician
Daniel Olsen, BCBA
Behavior Analyst
Shelby Olsen
Behavior Technician
Ashley Olson
Behavior Technician
Cameron Olson
Behavior Technician
Hunter Olson
Behavior Technician
Joshua Olson
Behavior Technician
Julie Olson
Behavior Technician
Kate Olson
Behavior Technician
Angela Olvera
Behavior Technician
Belen Olvera
Behavior Technician
Janet Olvera
Behavior Technician
Jonathan Olvera
Behavior Technician
Kenia Olvera Palma
Behavior Technician
Negena Omar
Behavior Technician
Lucas Omdahl
Behavior Technician
Jasmine Oneil
Behavior Technician
Olivia Ong, MD
Ophthalmology Physician
Erling Onsager
Behavior Technician
Anissa Ontiveros
Behavior Technician
Tatiana Onuskanich
Behavior Technician
Ahaoma Onyebuchi
Behavior Technician
Kyaw Hsan Oo
Behavior Technician
Falisha Ooka-Revander
Behavior Technician
Stephanie Opata
Behavior Technician
Lucian Opila
Behavior Technician
Naana Oppong
Behavior Technician
Anna Maria Ora
Behavior Technician
Raul Ora
Behavior Technician
Ashley Orange
Behavior Technician
Kaylynn Orange
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.