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 46 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. Donald Cadogan, PH.D.Clinical Psychologist1144382649
  2. Yessenia CaezBehavior Technician1417683053
  3. Andrew CaffeyBehavior Analyst1922508217
  4. Reiona CageBehavior Technician1972258473
  5. John CagerBehavior Technician1841978061
  6. Harry CaisonBehavior Technician1386353613
  7. Nicholas CaissieBehavior Technician1861211088
  8. Aden CajudoBehavior Technician1952229973
  9. Samantha CalandraBehavior Technician1679292882
  10. Jaclyn Rose CalasanzBehavior Technician1447836937
  11. Olivia CalatravaBehavior Technician1255073441
  12. Jesus CaldasBehavior Technician1154209674
  13. Stevie CalderaBehavior Technician1326965476
  14. Alexa Caldera FigueroaBehavior Technician1255042719
  15. Ana CalderasBehavior Technician1710662127
  16. Amayrani CalderonBehavior Technician1740071471
  17. Anahi CalderonBehavior Technician1386325785
  18. Anai CalderonBehavior Technician1174207708
  19. Blanca CalderonBehavior Technician1891505012
  20. Daniell CalderonBehavior Technician1326739582
  21. Edward CalderonBehavior Technician1215757075
  22. Elizabeth CalderonBehavior Technician1760344477
  23. Jasmine CalderonBehavior Technician1528980463
  24. Lisette CalderonBehavior Technician1659122505
  25. Luis CalderonBehavior Technician1700771045
  26. Maria CalderonBehavior Technician1215703194
  27. Maureen Calderon, LVNLicensed Vocational Nurse1386349512
  28. Mia CalderonBehavior Technician1154014785
  29. Savannah CalderonBehavior Technician1487234498
  30. Steve CalderonBehavior Technician1154045680
  31. David Calderon ManriquezBehavior Technician1508570649
  32. Jennifer Calderon ZavalaBehavior Technician1740030022
  33. Arlene Calderon-MaciasBehavior Technician1760251904
  34. Charity CaldwellBehavior Technician1306671045
  35. Olivia CaldwellBehavior Technician1558233957
  36. Rebecca CaldwellBehavior Technician1710734330
  37. Troy CaldwellBehavior Technician1578352902
  38. Christopher CalhounBehavior Technician1609512870
  39. Joanna CalhounBehavior Technician1588585434
  40. Joseph CalhounBehavior Technician1891625570
  41. Savanna CalhounBehavior Technician1013767771
  42. Valyssea CalhounBehavior Technician1043928914
  43. Isabel Cali-BarreraBehavior Technician1467136010
  44. Jade CalkinsBehavior Technician1225761745
  45. Luke CallaBehavior Technician1750066130
  46. Kiara CallahamBehavior Technician1871326850
  47. Jillian CallahanBehavior Technician1730976309
  48. Kaitlynn CallahanBehavior Technician1487371795
  49. Jessica CalocaBehavior Technician1134949993
  50. Alex CalomeniBehavior Technician1588377220

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.