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 320 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. Ivan ValadezBehavior Technician1659138477
  2. Marisa ValadezBehavior Technician1376302521
  3. Matthew ValdeolivarBehavior Technician1013726231
  4. Klayny ValdeoseraBehavior Technician1003628710
  5. Darren ValderaBehavior Technician1962213983
  6. Alina ValdezBehavior Technician1396482535
  7. Alondra ValdezBehavior Technician1225600091
  8. Andrea ValdezBehavior Technician1245959386
  9. Andrew ValdezBehavior Technician1225720808
  10. Angela ValdezBehavior Technician1023792298
  11. Brenda ValdezBehavior Technician1336006345
  12. Cassandra ValdezBehavior Technician1194546432
  13. Emily ValdezBehavior Technician1215762034
  14. Gregory ValdezBehavior Technician1043146590
  15. Ivan ValdezBehavior Technician1760289540
  16. Jazmine ValdezBehavior Technician1407738560
  17. Jose ValdezBehavior Technician1336974047
  18. Kimberly ValdezBehavior Technician1457202434
  19. Martin ValdezBehavior Technician1588398168
  20. Rosalia ValdezBehavior Technician1326806605
  21. Ruben ValdezBehavior Technician1407739915
  22. Sandra Valdez GarciaBehavior Technician1811635337
  23. Tiffany Valdez OrozcoBehavior Technician1467347708
  24. Lesley Valdez-RamosBehavior Technician1578393831
  25. Alejandra ValdiviaBehavior Technician1124902622
  26. Diana ValdiviaBehavior Technician1992542682
  27. Edwin ValdiviaBehavior Technician1609681436
  28. Karla ValdiviaBehavior Technician1407670508
  29. Marina ValdiviaBehavior Technician1932857232
  30. Nathalia ValdiviaBehavior Technician1508584327
  31. Richard ValdiviaBehavior Technician1215641410
  32. Vanessa ValdiviaBehavior Technician1730821927
  33. Karina Valdivia ChavezBehavior Technician1932828043
  34. Maria Valdivia VegaBehavior Technician1215759634
  35. Esperanza ValdiviezBehavior Technician1598459265
  36. Jovanni ValdiviezBehavior Technician1083432397
  37. Leticia ValdovinosBehavior Technician1407676067
  38. Victoria ValegaBehavior Technician1902765845
  39. Ashleigh ValenciaBehavior Technician1225977689
  40. Dafnne ValenciaBehavior Technician1023975984
  41. Guillermo ValenciaBehavior Technician1144055880
  42. Joanna ValenciaBehavior Technician1609724053
  43. Laura ValenciaBehavior Technician1306734645
  44. Leticia Isabel Valencia, BABehavior Technician1467096925
  45. Lizbeth ValenciaBehavior Technician1326804162
  46. Macy ValenciaBehavior Technician1316776768
  47. Maria ValenciaBehavior Technician1962234690
  48. Nicholas ValenciaBehavior Technician1053034355
  49. Susana ValenciaBehavior Technician1063147122
  50. Uriel ValenciaBehavior Technician1194671446

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.