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 82 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. Gabrielle DiazBehavior Technician1124940887
  2. Jaasiel DiazBehavior Technician1891645776
  3. Jazmin DiazBehavior Technician1669393609
  4. Jean Carlos DiazBehavior Technician1720868151
  5. Jennifer DiazBehavior Technician1790550564
  6. Jo DiazBehavior Technician1366155384
  7. Joanna DiazBehavior Technician1295518181
  8. Jose DiazBehavior Technician1811770795
  9. Joselyn DiazBehavior Technician1124746128
  10. Juliana DiazBehavior Technician1013880822
  11. Julie DiazBehavior Technician1487353397
  12. Kenysha DiazBehavior Technician1326871310
  13. Laura DiazBehavior Technician1295684504
  14. Lizeth DiazBehavior Technician1194582916
  15. Luis DiazBehavior Technician1497696520
  16. Malissa DiazBehavior Technician1588365712
  17. Manuel DiazBehavior Technician1609746502
  18. Maritza DiazBehavior Technician1649978321
  19. Marlene DiazBehavior Technician1982310066
  20. Marlyn DiazBehavior Technician1497513592
  21. Mary DiazBehavior Technician1477423374
  22. Melissa DiazBehavior Technician1497488332
  23. Miguel DiazBehavior Technician1679325120
  24. Stephanie DiazBehavior Technician1619702321
  25. Steve DiazBehavior Technician1659169910
  26. Susana DiazBehavior Technician1780313361
  27. Teresa DiazBehavior Technician1497619043
  28. Vivien DiazBehavior Technician1760152474
  29. Yetzel DiazBehavior Technician1821724451
  30. Zynia DiazBehavior Technician1851257646
  31. Lezlie Diaz BeltranBehavior Technician1467165365
  32. Melissa Diaz BeltranBehavior Technician1982315172
  33. Zully Diaz CordobaBehavior Technician1528851490
  34. Juan Diaz DelgadoBehavior Technician1003739368
  35. Lucero Diaz LaraBehavior Technician1730043183
  36. Angela Victoria Diaz MendezBehavior Technician1457034456
  37. Karen Diaz OrozcoBehavior Technician1811851272
  38. Ashley Diaz VentaBehavior Technician1366182172
  39. Zoila Diaz-CamposBehavior Technician1184309064
  40. Jacqueline Diaz-HernandezBehavior Technician1013523612
  41. Melina Diaz-RayasBehavior Technician1790657112
  42. Martha DiazcontiBehavior Technician1043707888
  43. Elena DibenedettoBehavior Technician1669346623
  44. Bethany DiblasioBehavior Technician1770405433
  45. Ian DickBehavior Technician1245000710
  46. Brooke DickenMental Health Counselor1033604889
  47. Caylynn DickensBehavior Technician1083308753
  48. Breanna DickersonBehavior Technician1306664966
  49. R'Monti DickersonBehavior Technician1487406930
  50. Sarah DickinsonBehavior Technician1922827526

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.