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 139 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. Luz HerreraBehavior Technician1750188538
  2. Mairani HerreraBehavior Technician1134918600
  3. Maria HerreraBehavior Technician1720888977
  4. Martha HerreraBehavior Technician1750277877
  5. Michelle HerreraBehavior Technician1962231316
  6. Miranda HerreraSpeech-Language Pathologist1720913874
  7. Moncerrat HerreraBehavior Technician1639958069
  8. Monica HerreraBehavior Technician1861320178
  9. Phillip HerreraBehavior Technician1619899556
  10. Stephanie HerreraBehavior Technician1881423192
  11. Taylor HerreraBehavior Technician1619600566
  12. Theresa HerreraBehavior Technician1336980275
  13. Valeria HerreraBehavior Technician1225994049
  14. Victor HerreraBehavior Technician1669168928
  15. Victoria HerreraBehavior Technician1598514747
  16. Yaraby HerreraBehavior Technician1689562936
  17. Yazmin HerreraBehavior Technician1790518314
  18. Yutzil HerreraBehavior Technician1871431775
  19. Karen Herrera AlvaradoBehavior Technician1063395010
  20. Karen Herrera SandovalBehavior Technician1174445019
  21. Juan Herrera-AparicioBehavior Technician1659064111
  22. Yvette Herrera-FarfanBehavior Technician1487545075
  23. Emily HerrinBehavior Technician1568104743
  24. Hannah HerringtonBehavior Technician1194447623
  25. Samantha HershBehavior Technician1194476127
  26. Wisper HersmanBehavior Technician1770299760
  27. Engy HerzallaBehavior Technician1881429538
  28. Kylie HescockBehavior Technician1609599075
  29. Gabrielle HeslopBehavior Technician1083579346
  30. Savannah HessBehavior Technician1982496220
  31. Emily HesseBehavior Technician1972468841
  32. Benjamin Hester-WilliamsBehavior Technician1265374839
  33. Keyah-Serata HetheringtonBehavior Technician1376327106
  34. Kelly HetnarineBehavior Technician1548158876
  35. Kayla HetrickBehavior Technician1104536200
  36. Whitney HetrickBehavior Technician1841949922
  37. Kiara HewlettBehavior Technician1508704404
  38. Lisandra HeyaimeBehavior Technician1295621316
  39. Katie HeymanLicensed Vocational Nurse1851246334
  40. Miguel HeynezBehavior Technician1366220436
  41. Johnny HeziquioBehavior Technician1942985536
  42. Lundyn HicklenBehavior Technician1720976053
  43. McKenna HickmanBehavior Technician1346051703
  44. Lasandra Hickman-LewisBehavior Technician1396699724
  45. Anthony HicksBehavior Technician1598549313
  46. Breyonna HicksBehavior Technician1447196514
  47. Bria HicksBehavior Technician1225955370
  48. Elena Hicks, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1619431269
  49. Jakara HicksBehavior Technician1073217600
  50. Zenora HicksBehavior Technician1477358307

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.