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 194 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. Lucia MartinezBehavior Technician1417718289
  2. Lynnette MartinezBehavior Technician1760193551
  3. Marbella MartinezBehavior Technician1790481737
  4. Maria MartinezBehavior Technician1558044545
  5. Maricela MartinezBehavior Technician1154244937
  6. Melanie MartinezBehavior Technician1326853565
  7. Melissa MartinezBehavior Technician1558019836
  8. Melissa MartinezBehavior Technician1639802150
  9. Melissa MartinezBehavior Technician1588499230
  10. Michelle MartinezBehavior Technician1679404016
  11. Mirna MartinezBehavior Technician1134054562
  12. Moises MartinezBehavior Technician1407560691
  13. Morelia MartinezBehavior Technician1740040666
  14. Nancy MartinezBehavior Technician1093466906
  15. Natalie Ofelia MartinezBehavior Technician1831935311
  16. Nataly MartinezBehavior Technician1629803341
  17. Nathan Martinez, RDADental Assistant1811415995
  18. Nestor MartinezBehavior Technician1376494336
  19. Nicole MartinezBehavior Technician1023991569
  20. Nicole MartinezBehavior Technician1881578714
  21. Nora MartinezBehavior Technician1659102606
  22. Odalis MartinezBehavior Technician1992501217
  23. Paula MartinezBehavior Technician1962146415
  24. Penelope Martinez, BEHAVIORAL THERAPISTBehavior Technician1467264309
  25. Priscilla MartinezBehavior Technician1497480578
  26. Rebecca MartinezBehavior Technician1528774197
  27. Roseann Martinez, PSY.D.Clinical Psychologist1124464987
  28. Samantha MartinezBehavior Analyst1922678960
  29. Samantha MartinezBehavior Technician1205614476
  30. Sarai MartinezBehavior Technician1275315988
  31. Sebastian MartinezBehavior Technician1659212751
  32. Serena MartinezBehavior Technician1598483810
  33. Silvia MartinezBehavior Technician1104693563
  34. Teri MartinezBehavior Technician1316670243
  35. Toni MartinezBehavior Technician1700613882
  36. Veronica MartinezBehavior Technician1740936715
  37. Virginia MartinezBehavior Technician1063244101
  38. Wendy MartinezBehavior Technician1124851233
  39. Yadira MartinezBehavior Technician1255180071
  40. Yasmine MartinezBehavior Technician1811611338
  41. Nancy Martinez CastroBehavior Technician1720887722
  42. Rosa Martinez De La RosaBehavior Technician1528827706
  43. Sbeidy Martinez DiazBehavior Technician1104608983
  44. Fernanda Martinez HernandezBehavior Technician1508698234
  45. Alan Demian Martinez JuarezBehavior Technician1063166064
  46. Vanessa Martinez LopezBehavior Technician1275479784
  47. Nicole Martinez MainBehavior Technician1811615552
  48. Angel Martinez MoralesBehavior Technician1043175656
  49. Connie Martinez PereidaBehavior Technician1225824923
  50. Arianni Martinez VargasBehavior Technician1336974088

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.