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 68 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. Sonia CorralesBehavior Technician1548075070
  2. Melissa Corrales AlvarezBehavior Technician1619862950
  3. Rolando CorralezBehavior Technician1700665056
  4. Brenda CorreaBehavior Technician1841027703
  5. Carolyn CorreaBehavior Technician1750033403
  6. Giselle CorreaBehavior Technician1699692368
  7. Katie CorreaBehavior Technician1811866288
  8. Libby CorreaBehavior Technician1881427409
  9. Melissa CorreaBehavior Technician1023753233
  10. Sabrina CorreaBehavior Technician1689351033
  11. Yolanda CorreaCase Manager/Care Coordinator1891015244
  12. Ameyalli Correa LopezBehavior Technician1437838018
  13. Sarahi Correa LopezBehavior Technician1891578928
  14. Keila CorreiaBehavior Technician1609628080
  15. Kellie CorreiaBehavior Technician1013726215
  16. Bethany CorriganBehavior Technician1649825720
  17. Casey Corsaro, B.A.Behavior Technician1952837957
  18. Ray CorstenBehavior Technician1538843602
  19. Aleyda CortesBehavior Technician1720776867
  20. Aylin CortesBehavior Technician1659085843
  21. Carolina CortesBehavior Technician1427812874
  22. Josselyn CortesBehavior Technician1164115705
  23. Karina CortesBehavior Technician1497575252
  24. Katelyn CortesBehavior Technician1346008224
  25. Marisa CortesBehavior Technician1588344303
  26. Melanie CortesBehavior Technician1578257259
  27. Shekinah CortesBehavior Technician1528981875
  28. Alekzander CortezBehavior Technician1679494538
  29. Angelica CortezStudent in an Organized Health Care Education/Training Program1457234775
  30. Benjamin CortezBehavior Technician1477305183
  31. Christina CortezBehavior Technician1194383059
  32. Claudia CortezBehavior Technician1073340675
  33. Crystal CortezBehavior Technician1295557288
  34. Eric CortezBehavior Technician1427695329
  35. Eunice CortezBehavior Technician1851001390
  36. Hailey CortezBehavior Technician1285486993
  37. Hilary CortezBehavior Technician1871328583
  38. Jasline CortezBehavior Technician1184332041
  39. Maria CortezBehavior Technician1790467629
  40. Mary CortezBehavior Technician1447027693
  41. Naomi CortezBehavior Technician1700758125
  42. Omar CortezBehavior Technician1720779499
  43. Samantha CortezBehavior Technician1063117372
  44. Shellsea CortezBehavior Technician1699458513
  45. Sonia CortezBehavior Technician1053126292
  46. Jasmine CosbyBehavior Technician1346015278
  47. Jasmine CosmeBehavior Technician1922838283
  48. Andrea Cossio VasquezBehavior Technician1174375885
  49. Alexis CostaBehavior Technician1629940044
  50. Jessica CostaBehavior Technician1962138511

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.