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 80 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. Glorialyz DelossantosBehavior Technician1104798529
  2. Judit DelrazoBehavior Technician1871359067
  3. Jailene DelunaBehavior Technician1295441285
  4. Siedah DelvaBehavior Technician1376375857
  5. Dominic DelvecchioBehavior Technician1669124830
  6. Rose DematteoBehavior Technician1598503609
  7. Ahtziry DemayBehavior Technician1366188500
  8. Kendra DemelloBehavior Technician1174307243
  9. Lehanie DemeryBehavior Technician1275368987
  10. Mary DemirjianBehavior Technician1609613389
  11. Makayla DemossBehavior Technician1225976616
  12. Tanya DempseyBehavior Technician1306774617
  13. Jasmine DemyersBehavior Technician1801510490
  14. Alexis DengBehavior Technician1578420840
  15. Amber DenisonBehavior Technician1144106527
  16. Mary Kaitlan DennaBehavior Technician1598577082
  17. Abeni DennisBehavior Technician1740149681
  18. Aja DennisBehavior Technician1609587179
  19. Essence DennisBehavior Technician1144046137
  20. Gary Dennis, BARehabilitation Practitioner1376687137
  21. Isabel DennisBehavior Technician1679286686
  22. Penny DennisBehavior Technician1598592677
  23. Jessi DennisonBehavior Technician1063367498
  24. Joe DennyBehavior Technician1598546137
  25. Shannon Denny, M.S.Mental Health Counselor1437638392
  26. Maria DenovaBehavior Technician1518763366
  27. Taylor DensonBehavior Technician1811839483
  28. Anttinette DentBehavior Technician1356069868
  29. Ian DentBehavior Technician1487484747
  30. Kaylin DentBehavior Technician1952156960
  31. Mia DeocalesBehavior Technician1497632301
  32. Saige DeoliveiraBehavior Technician1316761414
  33. Alex DepasqualeBehavior Technician1316643687
  34. Ashley DepeazerBehavior Analyst1760997043
  35. Adimilson DepinaBehavior Technician1487523858
  36. Erica DepinaBehavior Technician1063356111
  37. Lianne DepinoCase Manager/Care Coordinator1316635204
  38. Danielle L DeppaBehavior Technician1194689554
  39. Nattaya DerBehavior Technician1306796321
  40. Bianca DeragonBehavior Technician1275483935
  41. Zuleyma DerasBehavior Technician1376412742
  42. Jordan DerbisMarriage & Family Therapist1881291235
  43. Deandra DeremerBehavior Technician1265166862
  44. Tara DerenburgerBehavior Technician1760217426
  45. Annika DeridderBehavior Technician1225982796
  46. Ria DesaiBehavior Technician1518652965
  47. Xavier DesalesBehavior Technician1063295947
  48. Melinda DesantiagoBehavior Technician1669276259
  49. Cassidy DesantisBehavior Technician1578376703
  50. Lisa DeshazerBehavior Technician1992570766

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.