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 49 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. Hoang Nguyen, DDSGeneral Practice Dentistry1740409374
  2. Huong Nguyen, M.D.Internal Medicine Physician1992199343
  3. Jaclyn Nguyen, DPTPhysical Therapist1639448228
  4. John Nguyen, PHARM.D.Pharmacist1689034100
  5. Joseph Nguyen, O.D.Optometrist1295987675
  6. Kailey NguyenFamily Medicine Physician1104400498
  7. Katharine Nguyen, PHARM.D.Pharmacist1619242534
  8. Kathy NguyenBehavior Technician1497405138
  9. Kathy Nguyen, OTR/LPediatric Occupational Therapist1144964420
  10. Kristina Nguyen, FNPNurse Practitioner1558127639
  11. Krystal-Lauren Nguyen, RN, IBCLCLactation Consultant (Registered Nurse)1659252179
  12. Lan Nguyen, D.D.S.Dentist1902050446
  13. Lee Nguyen, DCOccupational Health Chiropractor1275724445
  14. Lily Nguyen, PHARMACISTPharmacist1144506346
  15. Linh NguyenPharmacist1003190166
  16. Lisa Nguyen, PHARMDPharmacist1609365436
  17. Nhi Nguyen, O.D.Optometrist1841785326
  18. Niki Nguyen, PHARMD.Pharmacist1316611999
  19. Patrick NguyenBehavior Technician1316559297
  20. Peter Nguyen, DMDDentist1164157160
  21. Phinphin Nguyen, PHARMACISTPharmacist1710207246
  22. Rick Nguyen, NPPrimary Care Nurse Practitioner1811856701
  23. Rose NguyenBehavior Technician1891575247
  24. Serena Nguyen, RPHPharmacist1790050680
  25. Steven Nguyen, FNP-CFamily Nurse Practitioner1003762659
  26. Teena NguyenBehavior Technician1376090332
  27. Tuyet-Khanh Nguyen, PAPhysician Assistant1316221567
  28. Viet NguyenBehavior Technician1992364210
  29. Nancy NicholsonAudiologist-Hearing Aid Fitter1649295718
  30. Leslie Nickens, LMFTMarriage & Family Therapist1083066708
  31. Hongbo NieEmergency Registered Nurse1861349615
  32. Briana NieblaBehavior Technician1558825455
  33. Hilda Nielson, MFT INTERNMarriage & Family Therapist1659494060
  34. Melanie NielsonBehavior Technician1104424860
  35. Arick NievesBehavior Technician1942177811
  36. Laura Nieves, MDInternal Medicine Physician1073808994
  37. Mohammad NikahdDentist1104181916
  38. Velondra NikkelBehavior Technician1407681307
  39. Joanne Nishii, DCChiropractor1457189490
  40. Paul Niu, M.D.Nephrology Physician1952336216
  41. Megan Nixon, LVNLicensed Vocational Nurse1295664795
  42. Ilda Njilefac, FNPFamily Nurse Practitioner1528859642
  43. Lisa NobleLicensed Vocational Nurse1518320571
  44. Chad Noel, D.C.Chiropractor1659625036
  45. Rusty NofoBehavior Technician1982333142
  46. Yenni NolascoBehavior Technician1447116934
  47. Sean Noorvash, DDS MSEndodontics1083710289
  48. Lynna NoralesBehavior Technician1114746278
  49. Michelle NorenSchool Psychologist1104461110
  50. Danielle Norgaard, LMFTMarriage & Family Therapist1447787205

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.