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 233 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. Alexandra OrtizBehavior Technician1639896848
  2. Alexxis OrtizBehavior Technician1760211122
  3. Alma OrtizBehavior Technician1508723511
  4. Alysia OrtizBehavior Technician1861170086
  5. Alyssa OrtizBehavior Technician1861359879
  6. Ana OrtizBehavior Technician1619667185
  7. Anthony OrtizBehavior Technician1518733781
  8. Aubrey OrtizBehavior Technician1740150648
  9. Devin OrtizBehavior Technician1003552019
  10. Diana OrtizBehavior Technician1568114932
  11. Emilia OrtizBehavior Technician1255138814
  12. Erica OrtizBehavior Technician1407774359
  13. Isabel OrtizBehavior Technician1417800434
  14. Israel OrtizBehavior Technician1558152009
  15. Jairilyn OrtizBehavior Technician1306558440
  16. Jamie OrtizBehavior Technician1609732916
  17. Jazmin OrtizBehavior Technician1053022533
  18. Jovanny OrtizBehavior Technician1922758978
  19. Juliana OrtizBehavior Technician1134017478
  20. Julissa OrtizBehavior Technician1215684931
  21. Karen OrtizBehavior Technician1295518280
  22. Kathy L OrtizBehavior Technician1194684035
  23. Kelly OrtizBehavior Technician1508554353
  24. Krisdali OrtizBehavior Technician1407598386
  25. Lacie OrtizBehavior Technician1609798362
  26. Lisa OrtizBehavior Technician1346128824
  27. Luz OrtizBehavior Technician1861329039
  28. Marisa OrtizBehavior Technician1639924434
  29. Michelle OrtizBehavior Technician1679448468
  30. Pearl OrtizBehavior Technician1386530400
  31. Reinaldo OrtizBehavior Technician1851123582
  32. Samantha OrtizBehavior Technician1477427870
  33. Samaria OrtizBehavior Technician1649145632
  34. Sara OrtizBehavior Technician1477204386
  35. Sofia OrtizBehavior Technician1386485423
  36. Starr OrtizBehavior Technician1669251922
  37. Stephanee OrtizBehavior Technician1023743259
  38. Valeria OrtizBehavior Technician1285231068
  39. Valerie Ortiz, BCBABehavior Analyst1427463892
  40. Victoria OrtizBehavior Technician1528817921
  41. Victoria OrtizBehavior Technician1417754862
  42. Xiomary OrtizBehavior Technician1750064671
  43. Yesenia OrtizBehavior Technician1669199964
  44. Tyshea Ortiz DenningBehavior Technician1073227286
  45. Gloria Ortiz GuzmanBehavior Technician1033816467
  46. Julia Ortiz SalazarBehavior Technician1811847577
  47. Tania Ortiz-Arreola, LPTLicensed Psychiatric Technician1578932232
  48. Alexandra Ortiz-AvilaBehavior Technician1487309712
  49. Jomairis Ortiz-NievesBehavior Technician1437032489
  50. Kionna OsayandeBehavior Technician1861218927

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.