NPPES file of Aug 9, 2026

Doctors and health care providers in Placentia, CA

1,002 individual NPPES records list a practice address in Placentia, 188th of 812 California cities. The largest group is behavior technician: 275, 27% of the city's records, against 18% across California. Page 8 of 21.

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

The 8 largest groups in Placentia

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

Placentia in California

  • Rank in California188th of 812 cities by records
  • Share of the state0.1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups40.4% of all records

Compared with California as a whole, Placentia has 5.7× the state's share of occupational therapy assistant records and 0.26× its share of student in an organized health care education/training program records.

Providers in Placentia, alphabetically

  1. Luke Harbach, DDSGeneral Practice Dentistry1982258638
  2. Mary Hartman, BSN-RNRegistered Nurse1821312505
  3. Samantha HartmanBehavior Technician1336075530
  4. Joanna Harvey, LCSWClinical Social Worker1932926987
  5. Brandon Haskins, D.C.Chiropractor1922250844
  6. Maya HastieBehavior Technician1194595587
  7. Suzanne Hatch-HaliliSpeech-Language Pathologist1659731099
  8. Natalie HawkinsBehavior Technician1811649734
  9. Alicia Hefley, PSYDPsychologist1417663071
  10. Allison Heim, M.A.Speech-Language Pathologist1497180764
  11. Sheila Heim, RNRegistered Nurse1760651459
  12. Andres Hernandez, OTR/LOccupational Therapist1609104579
  13. Arlet HernandezBehavior Technician1275324246
  14. Cesar HernandezBehavior Technician1841168176
  15. Pamela Hernandez, MFTMarriage & Family Therapist1982801379
  16. Patricia Hernandez, SLPASpeech-Language Pathologist1629465612
  17. Pamela HerreraBehavior Technician1760215727
  18. Matthew Hertzler, PTPhysical Therapist1366530073
  19. Dustin Hess, D.C.Chiropractor1316343825
  20. Brian Hill, PTA, ATCAthletic Trainer1649491341
  21. Matthew Hillery, RNFARegistered Nurse First Assistant1194881656
  22. Ashley Hinson, LMFTMarriage & Family Therapist1740695600
  23. Craig Hitchman, RPHPharmacist1619331915
  24. Joyce HoOccupational Therapist1700485059
  25. Pauline Ho, M.D.Specialist1194854794
  26. Thanh Ho, PH.D.Psychologist1750495818
  27. Diego HockenberryBehavior Technician1003636952
  28. Crystal Holbrook, N.P.Family Nurse Practitioner1235595729
  29. Kathryn HolguinMarriage & Family Therapist1588058333
  30. Stephanie Holzner, PH.D.Psychologist1598880189
  31. Darren Hom, MDEmergency Medicine Physician1861438947
  32. Katie Hommes Algera, A.C.S.W.Clinical Social Worker1003132606
  33. Adia HongPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1851270060
  34. Sarah Hood, PA-CInternal Medicine Physician1831784693
  35. Emily Horan, CCC-SLPSpeech-Language Pathologist1710741632
  36. Ali Houshyar, MDInternal Medicine Physician1568434595
  37. Bryan Hoynak, MDEmergency Medicine Physician1316989130
  38. Tyler Hoyt, ATCAthletic Trainer1922450923
  39. Andy Hsi, M.D.Anatomic Pathology & Clinical Pathology Physician1366832032
  40. Felicia Hsu, MDStudent in an Organized Health Care Education/Training Program1700412749
  41. Shu HsuPharmacist1568998037
  42. Banruo HuMental Health Counselor1083130561
  43. Chen Chih HuSpeech-Language Pathologist1730329624
  44. Amy HuangMarriage & Family Therapist1154816684
  45. Benjamin Huang, M.D.Anesthesiology Physician1457310641
  46. Ling Huang, ODOptometrist1386825784
  47. Tiffany HuckaboneBehavior Technician1861952038
  48. Maricruz HuertaBehavior Technician1194501957
  49. Lauren Huff, PTAPhysical Therapy Assistant1922750579
  50. Justin Hui, LMFTMarriage & Family Therapist1285132563

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

Placentia, California appears in the CMS National Plan and Provider Enumeration System with 1,002 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 Placentia - 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 Placentia 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 Placentia is weighted toward Behavior Technician (275 clinicians, followed by Marriage & Family Therapist with 66 and Speech-Language Pathologist with 64). 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, Placentia reports roughly 2.6 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 Placentia practice address, a coverage gap Placentia patients typically fill by traveling to a larger nearby hub.

For Placentia 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 Placentia, CA?

There are 1,002 registered healthcare providers in Placentia, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Placentia?

The most common specialties in Placentia are Behavior Technician, Marriage & Family Therapist, Speech-Language Pathologist, Physical Therapist, Pharmacist. Behavior Technician has the most providers with 275.

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.