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 278 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. Marina RuizBehavior Technician1346028412
  2. Martin RuizBehavior Technician1417888496
  3. Nicole RuizBehavior Technician1932746369
  4. Priscila RuizBehavior Technician1073295994
  5. Rodolfo Ruiz, B.M.Behavior Technician1063115574
  6. Samantha RuizBehavior Technician1780544148
  7. Valeria RuizBehavior Technician1154219491
  8. Vanessa RuizBehavior Technician1568177590
  9. Yazmin RuizBehavior Technician1154204105
  10. Josemelli Ruiz BarriosBehavior Technician1083393672
  11. Amanda Ruiz De La PenaBehavior Analyst1235601527
  12. Vanessa Ruiz MartinezBehavior Technician1285484667
  13. Indira Ruiz MunozBehavior Technician1215758644
  14. Deiry Ruiz SandovalBehavior Technician1043168602
  15. Kenyatta RumphBehavior Technician1104515535
  16. Tatpicha RungpanaratBehavior Technician1396458394
  17. Theresa RuprechtBehavior Technician1154155349
  18. Lauren RussellBehavior Technician1881515047
  19. Lysah RussellBehavior Technician1922708080
  20. Maya RussellBehavior Technician1023732559
  21. Rebecca RussellBehavior Technician1326751066
  22. Rodrigo RussellBehavior Technician1215700166
  23. Vanessa RussellBehavior Technician1821719808
  24. Emily RussiBehavior Technician1033999461
  25. Malan RussianBehavior Technician1356274385
  26. Geri RussogomezBehavior Technician1639047038
  27. Treasure RuthBehavior Technician1902530207
  28. Ayla RutherfordBehavior Technician1437925799
  29. Heaven RutledgeBehavior Technician1316881816
  30. Lily RutledgeBehavior Technician1477250892
  31. Ailien RuvalcabaBehavior Technician1033001607
  32. Delilah RuvalcabaBehavior Technician1376405449
  33. Esmeralda RuvalcabaBehavior Technician1043006802
  34. Abigail RuzBehavior Technician1689316861
  35. Gwendolyn RyanBehavior Technician1053108191
  36. Kiley RyanBehavior Technician1265180046
  37. Nicholas RyanBehavior Technician1841981511
  38. Dana RyderBehavior Technician1508680612
  39. Sanaye RyderBehavior Technician1376253815
  40. Lakeisha RyeBehavior Technician1760360747
  41. Jeff SaariBehavior Technician1225911027
  42. Rebecca SaasBehavior Technician1356075592
  43. Brisella SaavedraBehavior Technician1063355170
  44. Edwin SaavedraBehavior Technician1871441436
  45. Elizabeth Saavedra, OTR/L, OTDPediatric Occupational Therapist1891059804
  46. Giselle SaavedraBehavior Technician1700536463
  47. Maite SaavedraBehavior Technician1346887346
  48. Wendy SaavedraBehavior Technician1740915016
  49. Raghad SabahBehavior Technician1467137059
  50. Tiffany SaballyBehavior Technician1356038475

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.