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 174 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. Jessica LewisBehavior Technician1831899756
  2. Kaziah LewisBehavior Technician1437008927
  3. Kendra LewisBehavior Technician1962103168
  4. Kevin LewisBehavior Technician1629867932
  5. Kia LewisBehavior Technician1033946975
  6. Kimberly LewisBehavior Technician1871462333
  7. Leona LewisBehavior Technician1922802511
  8. Lorenzo LewisBehavior Technician1225789233
  9. Mahala LewisBehavior Technician1578485231
  10. Mariah LewisBehavior Technician1669330320
  11. Mia LewisBehavior Technician1285507806
  12. Nastassia LewisBehavior Technician1780528281
  13. Nava LewisBehavior Technician1962320325
  14. Pauletta LewisBehavior Technician1659028389
  15. Ralph LewisBehavior Technician1255013181
  16. Rashida LewisBehavior Technician1063239994
  17. Regina LewisBehavior Technician1568309094
  18. Ronnie LewisBehavior Technician1801738471
  19. Ruby LewisBehavior Technician1760836035
  20. Sabrina LewisBehavior Technician1750098695
  21. Sabrynah LewisBehavior Technician1144174616
  22. Samantha A LewisBehavior Technician1831923036
  23. Sean LewisBehavior Technician1083411805
  24. Shameka LewisBehavior Technician1316712136
  25. Sujana LewisBehavior Technician1497480628
  26. Tahjana LewisBehavior Technician1518657055
  27. Taij LewisBehavior Technician1790422830
  28. Tajuana LewisBehavior Technician1427749993
  29. Terence Lewis, ACSWMental Health Counselor1629493176
  30. Tyrica LewisBehavior Technician1184369241
  31. Wallace LewisBehavior Technician1285363234
  32. William LewisBehavior Technician1720854805
  33. Zina LewisBehavior Technician1467229815
  34. Ariel Lewis-ThompsonBehavior Technician1194413237
  35. Abby LewmanBehavior Technician1558008797
  36. Charity LewrightBehavior Technician1629938964
  37. Aiko LeyhBehavior Technician1720833056
  38. Drtodd LeylekyanBehavior Technician1336824069
  39. Ruby LeynesBehavior Technician1659150928
  40. Jasmine LeyvaBehavior Technician1023968047
  41. Lizbeth LeyvaBehavior Technician1164209201
  42. Maria LeyvaBehavior Technician1578286944
  43. Alisha LiBehavior Technician1477479806
  44. Christopher LiBehavior Technician1518815489
  45. Ethan LiBehavior Technician1699454256
  46. Ivy Li, DDSDentist1124183140
  47. Kristen LiBehavior Technician1669195012
  48. Mengqi LiBehavior Technician1639033087
  49. Wilson LiBehavior Technician1043108384
  50. Becky LiangBehavior Technician1992433056

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.