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 21 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. Briana AyalaBehavior Technician1992432801
  2. Daniela AyalaBehavior Technician1144061268
  3. Dante AyalaBehavior Technician1093561326
  4. David AyalaBehavior Technician1194611210
  5. Eileen AyalaBehavior Technician1780567479
  6. Eric AyalaBehavior Technician1619810710
  7. Faviola AyalaBehavior Technician1679302038
  8. Heidi AyalaBehavior Technician1093680084
  9. Janette AyalaBehavior Technician1174209670
  10. Joana AyalaBehavior Technician1679425748
  11. Krystal AyalaBehavior Technician1215719927
  12. Leslie AyalaBehavior Technician1841975448
  13. Liliana AyalaBehavior Technician1992439111
  14. Martha AyalaBehavior Technician1689326324
  15. Moncerrath AyalaBehavior Technician1316759111
  16. Norma AyalaBehavior Technician1073372892
  17. Sandra AyalaBehavior Technician1972379394
  18. Victoria AyalaBehavior Technician1720728553
  19. Xochitl AyalaBehavior Technician1104629179
  20. Erasmo Ayala BairesAssistant Behavior Analyst1326802919
  21. Areli Ayala VazquezBehavior Technician1396609145
  22. Jefferey AyersBehavior Technician1679278980
  23. Kathrine AyersBehavior Technician1104592096
  24. Usman AyobamiBehavior Technician1912863168
  25. Christian AyonBehavior Technician1275389504
  26. Jafra Areli Ayon PeraltaBehavior Technician1780493080
  27. Kathryn AyresBehavior Technician1902666563
  28. Janette AyubPeer Specialist1588404586
  29. Francisco AyungaBehavior Technician1982105896
  30. Marie AzanedoBehavior Technician1023724192
  31. Chidinma AzingeBehavior Technician1356187892
  32. Joseph BabamirzaBehavior Technician1699500413
  33. Alina BabayanBehavior Technician1801628946
  34. Tywun BaberBehavior Technician1538924022
  35. Analisa BabulaBehavior Technician1760374235
  36. Bobbie BacaBehavior Technician1487499547
  37. Christian BacaBehavior Technician1770266694
  38. Krystal BacaBehavior Technician1770363145
  39. Roman BacaBehavior Technician1760192207
  40. Taylen BacaBehavior Technician1770367500
  41. Benjamin Baca CalvilloBehavior Technician1649958802
  42. Maurilio Baca EsquivelBehavior Technician1992418438
  43. Khoa BachBehavior Technician1588450894
  44. Matthew BachBehavior Technician1316876766
  45. James BachmurskiBehavior Technician1790637353
  46. Maria BacilioBehavior Technician1982348421
  47. Karen BacyBehavior Technician1598543688
  48. Selena BadajozBehavior Technician1154935278
  49. Rea BadaniBehavior Technician1366278376
  50. Brithany Badilla ChinyBehavior Technician1194501411

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.