NPPES file of Aug 9, 2026

Doctors and health care providers in Monrovia, CA

17,347 individual NPPES records list a practice address in Monrovia, 8th of 812 California cities. The largest group is behavior technician: 16,526, 95% of the city's records, against 18% across California. Page 5 of 347.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Monrovia

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Monrovia in California

  • Rank in California8th of 812 cities by records
  • Share of the state1.8% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups96.4% of all records
  • Behavior Technician rank1st of the 10 California cities with the most

Compared with California as a whole, Monrovia has 5.4× the state's share of behavior technician records and 0.09× its share of marriage & family therapist records.

Providers in Monrovia, alphabetically

  1. Luis Aguilar ChachaguaBehavior Technician1811726169
  2. Irene Aguilar RochaBehavior Technician1861376782
  3. Fiona Aguilar RodriguezBehavior Technician1588135974
  4. Mariel Aguilar RuizBehavior Technician1326736463
  5. Brenda Aguilar-CarrazcoBehavior Technician1881555621
  6. Maria Aguilar-DerasBehavior Technician1356159644
  7. Marisleysis Aguilar-VargasBehavior Technician1932927159
  8. Ashley AguileraBehavior Technician1942088034
  9. Giselle AguileraBehavior Technician1487519989
  10. Gizelle AguileraBehavior Technician1033920202
  11. Jason AguileraBehavior Technician1265135446
  12. Jennifer AguileraBehavior Technician1134855240
  13. Nely AguileraBehavior Technician1700646643
  14. Samantha AguileraBehavior Technician1336995034
  15. Viridiana Aguilera AmbrizBehavior Technician1487575346
  16. Joana Aguilera DuranBehavior Technician1730880378
  17. Yaredth Aguilera RochaBehavior Technician1861113847
  18. Jose Emmanuel AguinaldoBehavior Technician1114843547
  19. Arturo AguirreBehavior Technician1053298968
  20. Billy AguirreRehabilitation Practitioner1639959083
  21. Carolina AguirreBehavior Technician1376497545
  22. Cynthia AguirreBehavior Technician1659076958
  23. Elianna AguirreBehavior Technician1811836802
  24. Kayla AguirreBehavior Technician1912658824
  25. Laylah AguirreBehavior Technician1821838236
  26. Marie AguirreBehavior Technician1447896717
  27. Mark AguirreBehavior Technician1366289043
  28. Marlee AguirreBehavior Technician1740932490
  29. Melina AguirreBehavior Technician1306406632
  30. Rosielynd AguirreBehavior Technician1255253423
  31. Tracy AguirreBehavior Technician1407642812
  32. Kimberly Aguirre GarciaBehavior Technician1780338707
  33. Gerardo Aguirre LopezBehavior Technician1982487864
  34. Itzel Aguirre RodriguezBehavior Technician1982486528
  35. Erika Aguirre-Miyamoto, LCSWClinical Social Worker1225221831
  36. Desmond AgyemangBehavior Technician1730075862
  37. Phoebe AgyenBehavior Technician1841137833
  38. Hania AhmadBehavior Technician1679280515
  39. Muhammad AhmadBehavior Technician1154285914
  40. Shahid AhmadBehavior Technician1356236699
  41. Artemis AhmadiBehavior Technician1568257921
  42. Fardowsa AhmedBehavior Technician1619702354
  43. Jamila AhmedBehavior Technician1700736097
  44. Mariam AhmedBehavior Technician1962362459
  45. Dallana AhumadaBehavior Technician1114658036
  46. Monika AhumadaBehavior Technician1396461547
  47. Vanessa AhumadaBehavior Technician1245067842
  48. Elizabeth AidenBehavior Technician1144976150
  49. Paul AigbogunBehavior Technician1174271084
  50. Quincy AinsworthBehavior Technician1386439743

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Monrovia, California appears in the CMS National Plan and Provider Enumeration System with 17,347 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 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 2024 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 (16,526 clinicians, followed by Behavior Analyst with 109 and Marriage & Family Therapist with 94). 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 44.5 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.

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. 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 Monrovia, CA?

There are 17,347 registered healthcare providers in Monrovia, CA, covering 25 or more 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, Student in an Organized Health Care Education/Training Program. Behavior Technician has the most providers with 16,526.

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.