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 266 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. Gellona Rivas-ParsonBehavior Technician1437038148
  2. Lindsy Rivas-ReyesBehavior Analyst1053882902
  3. Angela RiveraBehavior Technician1093490401
  4. Angelo RiveraBehavior Technician1275243412
  5. Annabella RiveraBehavior Technician1962181537
  6. Briana RiveraBehavior Technician1831926773
  7. Carlos RiveraBehavior Technician1669364097
  8. Carmen RiveraBehavior Technician1932918141
  9. Charles RiveraBehavior Technician1609601350
  10. Christina Rivera, MS, LCGC, CG(ASCP)Genetic Counselor (M.S.)1407720378
  11. Daisy RiveraBehavior Technician1487542288
  12. Daniel RiveraBehavior Technician1629767843
  13. Daniela RiveraBehavior Technician1780539817
  14. David RiveraBehavior Technician1013833458
  15. Dyanna RiveraBehavior Technician1770238289
  16. Edwin RiveraBehavior Technician1871326991
  17. Emely RiveraBehavior Technician1326824236
  18. Emely RiveraBehavior Technician1518800614
  19. Emma RiveraBehavior Technician1871382689
  20. Emma RiveraBehavior Technician1891667226
  21. Fabiola RiveraBehavior Technician1326922030
  22. Fatima RiveraBehavior Technician1386390383
  23. Gabriela RiveraBehavior Technician1881418986
  24. Jaileen RiveraBehavior Technician1437883741
  25. Jasmine RiveraBehavior Technician1407319809
  26. Jazmine RiveraBehavior Technician1962191197
  27. Joseph RiveraBehavior Technician1194437236
  28. Kailyn RiveraBehavior Technician1336972959
  29. Karinia RiveraBehavior Technician1669368783
  30. Karla RiveraBehavior Technician1831010792
  31. Kashle RiveraBehavior Technician1154006765
  32. Kiara RiveraBehavior Technician1538841481
  33. Kimberly RiveraBehavior Technician1386401818
  34. Leeland RiveraBehavior Technician1225900632
  35. Leslie RiveraBehavior Technician1245161223
  36. Liliann RiveraBehavior Technician1225821853
  37. Maria RiveraBehavior Technician1497486393
  38. Maria RiveraBehavior Technician1225741861
  39. Mayra RiveraBehavior Technician1659087633
  40. Melanie RiveraBehavior Technician1528617966
  41. Melissa RiveraBehavior Technician1851034078
  42. Milla RiveraBehavior Technician1164233524
  43. Nidzaida RiveraBehavior Technician1992522056
  44. Nyla RiveraBehavior Technician1124842224
  45. Patricia RiveraBehavior Technician1528890662
  46. Raymond RiveraBehavior Technician1336097997
  47. Rodolfo RiveraBehavior Technician1306581525
  48. Roxelis RiveraBehavior Technician1952228009
  49. Ruby RiveraBehavior Technician1104604297
  50. Sadie RiveraBehavior Technician1386355014

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.