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 195 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. Susana Martinez VazquezBehavior Technician1811686066
  2. Mindy Martinez VillanuevaBehavior Technician1699558437
  3. Emily Martinez- CorreaBehavior Technician1669170494
  4. Angie Martinez-MedinaBehavior Technician1700619822
  5. Valeria Martinez-ValeroBehavior Technician1376431601
  6. Alyssa Martinez-YahnBehavior Technician1699422568
  7. Luz Martinez-YanezBehavior Technician1558042382
  8. Mary Martinez-ZunigaBehavior Technician1255085189
  9. Alison Martino, M.S., CCC-SLPSpeech-Language Pathologist1518500131
  10. Victoria MartinoBehavior Technician1124709449
  11. Nicole MartinsBehavior Technician1871452961
  12. Mindy MartynBehavior Technician1306537071
  13. Walter MartzenStudent in an Organized Health Care Education/Training Program1205550712
  14. Shay MarunaBehavior Technician1467134387
  15. Maria MasabandaBehavior Technician1427943752
  16. Sabra MasannatBehavior Analyst1033885173
  17. Jazmin MascorroBehavior Technician1740099969
  18. Elliana MasecchiaBehavior Technician1033944780
  19. Kalonji MasharikiBehavior Technician1548124993
  20. Emjhaie MaslakBehavior Technician1710780788
  21. Arelia MasonBehavior Technician1447109509
  22. Carolyn Mason, M.A.Marriage & Family Therapist1528401189
  23. Deonna MasonBehavior Technician1972215010
  24. Lily MasonBehavior Technician1174261309
  25. Lishanique MasonBehavior Technician1437865425
  26. Morgan MasonBehavior Technician1902798473
  27. Nireaja MasonBehavior Technician1467284190
  28. Melika MasoudpourBehavior Technician1215751326
  29. Jessica MassakerBehavior Technician1093423196
  30. James MassieBehavior Technician1700695251
  31. Harrison MastBehavior Technician1538968532
  32. Christiana MastersBehavior Technician1609660141
  33. Kathleen MastopietroBehavior Technician1831010784
  34. Adolphine MasudiBehavior Technician1114894995
  35. Alma MataBehavior Technician1356048748
  36. Andrea MataBehavior Technician1689413627
  37. Angelina MataBehavior Technician1497494249
  38. Kanon MataBehavior Technician1932939295
  39. Mariana MataBehavior Technician1912893033
  40. Pamela MataBehavior Technician1215868658
  41. Jenny MatamorosBehavior Technician1619832979
  42. Kyra MatangeloBehavior Technician1134010721
  43. Camrin MatarazzoBehavior Technician1407539331
  44. Alexa MateoBehavior Technician1992429583
  45. Claudia MateoBehavior Technician1285355727
  46. Audrey MathasBehavior Analyst1326893306
  47. Dani MathesBehavior Technician1043040645
  48. Alycia MathewsBehavior Technician1487379343
  49. Assaleema MathewsBehavior Technician1003707696
  50. Aarohi MathurBehavior Technician1972241404

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.