NPPES file of Aug 9, 2026

Doctors and health care providers in Corona, CA

3,731 individual NPPES records list a practice address in Corona, 57th of 812 California cities. The largest group is behavior technician: 1,322, 35% of the city's records, against 18% across California. Page 27 of 75.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Corona

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Corona in California

  • Rank in California57th of 812 cities by records
  • Share of the state0.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups45.1% of all records

Compared with California as a whole, Corona has 7.7× the state's share of assistant behavior analyst records and 0.19× its share of student in an organized health care education/training program records.

Providers in Corona, alphabetically

  1. Mariella GuerreroBehavior Technician1538093042
  2. Martha GuerreroSpeech-Language Pathologist1912511742
  3. Samantha GuerreroBehavior Technician1659139459
  4. Tracy Guerrero-Proctor, PSYD, LMFTPsychologist1366004582
  5. Ann GuevaraBehavior Technician1881259927
  6. Ivette Guevara Garcia, DDSGeneral Practice Dentistry1265367114
  7. Jacob GuevarraPhysical Therapy Assistant1831875129
  8. Melissa Guillen, BCAT, RBTBehavior Technician1194226217
  9. Brittani Guillory, LVNLicensed Vocational Nurse1184275315
  10. Noha Guirguis, RDMS, RVTSonography Radiologic Technologist1104179563
  11. Hailey GumanabBehavior Technician1235007196
  12. Rushil GumasanaBehavior Technician1225758683
  13. Alani GumbertBehavior Technician1124734546
  14. Ramesh Gupta, M.D.Internal Medicine Physician1255527685
  15. Janine Gustafson, MFTMarriage & Family Therapist1437271350
  16. Elizabeth GutierrezBehavior Technician1275312860
  17. Evelyn GutierrezBehavior Technician1174286447
  18. Gabriel GutierrezBehavior Analyst1285358630
  19. Isis GutierrezBehavior Technician1932071123
  20. Karen GutierrezBehavior Analyst1992502348
  21. Laura GutierrezClinical Social Worker1063072791
  22. Linda GutierrezMarriage & Family Therapist1326522012
  23. Louisa GutierrezAddiction (Substance Use Disorder) Counselor1669039210
  24. Maria GutierrezBehavior Technician1588325120
  25. Michelle GutierrezBehavior Technician1588443246
  26. Gustavo Gutierrez SecundinoBehavior Technician1699568279
  27. Anthony GuzmanBehavior Technician1407618887
  28. Dario GuzmanBehavior Technician1154212918
  29. Dominique GuzmanBehavior Technician1003427378
  30. Evelyn GuzmanBehavior Technician1073124756
  31. Jasmine Guzman, AMFT, APCCMarriage & Family Therapist1235837394
  32. Marina GuzmanBehavior Technician1043974132
  33. Richard GuzmanBehavior Technician1831845924
  34. Alejandra Guzman-Ibarra, PA-CPhysician Assistant1023899069
  35. Vince Ha, MDNephrology Physician1568587061
  36. Amal HabbalBehavior Technician1952174807
  37. Cristel Haddad, PHARM. D.Pharmacist1871222604
  38. Shrouk Haddad, D.C.Chiropractor1245170216
  39. Mavis HaganBehavior Analyst1417592791
  40. Mowbray Hagan, MDInternal Medicine Physician1235145590
  41. Idalmis HalaliloBehavior Technician1518818715
  42. Stacy Halderman, FNP-CFamily Nurse Practitioner1558836510
  43. Alexandra HaleBehavior Technician1235830217
  44. Miesha HaleBehavior Technician1053802769
  45. Cynthia Hall, LMFTMarriage & Family Therapist1629363965
  46. David Hall, PH.D.Clinical Psychologist1730489139
  47. Ronald Hall, MA, MAMarriage & Family Therapist1316148752
  48. Catherine Hallet, MFTMarriage & Family Therapist1306930565
  49. Berthold Halter, PA-CMedical Physician Assistant1952636524
  50. Brittney HamiltonBehavior Technician1841708971

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

Corona, California appears in the CMS National Plan and Provider Enumeration System with 3,731 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 Corona - 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 Corona 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 Corona is weighted toward Behavior Technician (1,322 clinicians, followed by Marriage & Family Therapist with 202 and Pharmacist with 160). 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, Corona reports roughly 9.6 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 Corona practice address, a coverage gap Corona patients typically fill by traveling to a larger nearby hub.

For Corona 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 Corona, CA?

There are 3,731 registered healthcare providers in Corona, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Corona?

The most common specialties in Corona are Behavior Technician, Marriage & Family Therapist, Pharmacist, Behavior Analyst, Mental Health Counselor. Behavior Technician has the most providers with 1,322.

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.