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 125 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. Scott GrimesBehavior Technician1760130033
  2. Elizabeth GrimmerBehavior Technician1720897945
  3. Shawna GrinaBehavior Technician1821792490
  4. Allyson GrinerBehavior Technician1437841194
  5. Chase GrippoBehavior Technician1114603602
  6. Zakiya GrishamBehavior Technician1821729500
  7. Rebecca GroewaBehavior Technician1417787011
  8. Anastasiya GromovaBehavior Technician1780538256
  9. Lashawn GrossBehavior Technician1780385997
  10. Taria GrossBehavior Technician1558282400
  11. Imani GroverBehavior Technician1477417830
  12. Caitlin GrubbBehavior Technician1255082285
  13. Jacqueline GrubbBehavior Technician1609506625
  14. Justin GrubbBehavior Technician1649996976
  15. Ladonna GrubbBehavior Technician1841044401
  16. Elizabeth GrubbsBehavior Technician1144098641
  17. Michelle GrubeBehavior Technician1821736356
  18. Michael GrulliBehavior Technician1861388407
  19. Molly Grupe, RDRegistered Dietitian1659861086
  20. Tyler GrupeBehavior Technician1053193771
  21. Dominika Grzeskowiak StoneBehavior Technician1073204756
  22. Xinni GuBehavior Technician1295460236
  23. Nayelis GuadalupeBehavior Technician1043158439
  24. Kayli GuajardoBehavior Technician1225896475
  25. Makayla GuajardoBehavior Technician1710689708
  26. Alexis GuandiqueBehavior Technician1891510657
  27. Yesenia GuapillaBehavior Technician1952130312
  28. Jefferson GuardadoBehavior Technician1598569188
  29. Jessica GuardadoBehavior Technician1710793724
  30. Kelly Abigail GuardadoBehavior Technician1508579517
  31. Paola GuardadoBehavior Technician1093509978
  32. Rebecca GuardianBehavior Technician1649901323
  33. Brittney GuariscoBehavior Technician1568264067
  34. Gerardo Guba, MDFamily Medicine Physician1164402632
  35. Aimee GudinoBehavior Technician1225709983
  36. Angelina GudinoBehavior Technician1932884319
  37. Brianna GudinoBehavior Technician1689371916
  38. Cruz Gudino GarciaBehavior Technician1790594901
  39. Liliana Guereca MoralesBehavior Technician1386428118
  40. Autumn GuerequeBehavior Technician1093464109
  41. Ahmad GuerinBehavior Technician1255077012
  42. Desire GuerraBehavior Technician1447071675
  43. Hailee GuerraBehavior Technician1831013242
  44. Loren GuerraBehavior Technician1952110249
  45. Manuel GuerraBehavior Technician1467289306
  46. Marcos GuerraBehavior Technician1720775711
  47. Misael GuerraBehavior Technician1740970219
  48. Noeli GuerraBehavior Technician1235973868
  49. Alana GuerreroBehavior Technician1265397525
  50. Anna Beatriz Guerrero, SLP-CFSpeech-Language Pathologist1457084865

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.