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 274 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. Jose RojasBehavior Technician1033840954
  2. Laysa RojasBehavior Technician1942067442
  3. Leyla RojasBehavior Technician1487339073
  4. Marisol RojasBehavior Technician1649126996
  5. Mirla RojasBehavior Technician1992664130
  6. Gabriela Rojas FloresBehavior Technician1073275152
  7. Janett Rojas LopezBehavior Technician1770343394
  8. Jelenny Rojas PaulinoBehavior Technician1467158501
  9. Miriam Rojas VargasBehavior Technician1407516651
  10. Johanna Rojas-VelascoBehavior Technician1285378331
  11. Zachary RojekBehavior Technician1417805862
  12. Alexis RojoBehavior Technician1013838069
  13. Andrew RokesBehavior Technician1437988433
  14. Renata RokickiBehavior Technician1619759404
  15. Joseph RoldanBehavior Technician1033088596
  16. Kayla RoldanBehavior Technician1548952112
  17. Christopher RollBehavior Technician1255181962
  18. Mykailah RollysonBehavior Technician1780419424
  19. Sebastian Rolon RiveraBehavior Technician1841099421
  20. Matthew RomBehavior Technician1508591678
  21. Marlon RomaBehavior Technician1093404220
  22. Sedequa RomainBehavior Technician1225752181
  23. Allison RomanBehavior Technician1912686585
  24. Brandon Roman, NONEBehavior Technician1346909785
  25. Emily RomanBehavior Technician1235957374
  26. Geneve RomanBehavior Technician1124946140
  27. Siearra RomanBehavior Technician1295426740
  28. Zoey RomankoBehavior Technician1407709728
  29. Iris RomanoBehavior Technician1255049136
  30. Joanna RomeoBehavior Technician1578364154
  31. Ana RomeroBehavior Technician1831871771
  32. Anthony RomeroBehavior Technician1437018694
  33. Charice RomeroBehavior Technician1114885860
  34. Claudia Romero, B.ABehavior Technician1770329997
  35. Danny RomeroBehavior Technician1003702135
  36. Edward RomeroBehavior Technician1285385211
  37. Gavina RomeroBehavior Technician1295656247
  38. Giovanni RomeroBehavior Technician1144003278
  39. Haley RomeroBehavior Technician1952288862
  40. Hector RomeroBehavior Technician1114882636
  41. Janet RomeroBehavior Technician1780467191
  42. Jay RomeroBehavior Technician1326796376
  43. Jessalyn RomeroBehavior Technician1619623675
  44. Jezzie RomeroBehavior Technician1306584834
  45. Jose RomeroBehavior Technician1104674928
  46. Juan RomeroBehavior Technician1841010725
  47. Kenny RomeroBehavior Technician1811720808
  48. Kevin Romero, BABehavior Technician1013752732
  49. Manuel RomeroBehavior Technician1780312439
  50. Martina RomeroBehavior Technician1154282994

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.