NPPES file of Aug 9, 2026

Doctors and health care providers in Garden Grove, CA

4,572 individual NPPES records list a practice address in Garden Grove, 42nd of 812 California cities. The largest group is behavior technician: 2,130, 47% of the city's records, against 18% across California. Page 61 of 92.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Garden Grove

  1. Behavior Technician2,130
  2. Pharmacist220
  3. Behavior Analyst203
  4. Mental Health Counselor123
  5. Marriage & Family Therapist104
  6. Clinical Social Worker89
  7. General Practice Dentistry86
  8. Physical Therapist84

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

Garden Grove in California

  • Rank in California42nd of 812 cities by records
  • Share of the state0.5% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups55.8% of all records

Compared with California as a whole, Garden Grove has 2.6× the state's share of behavior technician records and 0.19× its share of student in an organized health care education/training program records.

Providers in Garden Grove, alphabetically

  1. Rebecca NiemeyerSpeech-Language Pathologist1629555230
  2. Oscar NietoBehavior Technician1245959311
  3. Monica NinoBehavior Technician1346096435
  4. Jeremy NishimotoRehabilitation Practitioner1740527274
  5. Valeria Noel, MA, BCBABehavior Analyst1568936177
  6. Michelle NoertkerBehavior Analyst1366927600
  7. Jae Min Noh, L.AC.Acupuncturist1992989024
  8. Alyssa Nojima, B.S., RBTBehavior Technician1821553298
  9. Brenda Noriega, HISHearing Instrument Specialist1326822727
  10. Stacey Northcutt, RNRegistered Nurse1184464778
  11. Mary NorthumBehavior Technician1114816345
  12. Patricia NortonBehavior Analyst1275238586
  13. Zahra NouraminBehavior Technician1912614181
  14. James NovakBehavior Technician1851169866
  15. Cynthia Novelo, OTPediatric Occupational Therapist1659654580
  16. Josias NuilaBehavior Technician1205729449
  17. Arianna NunezBehavior Technician1033902804
  18. Robert NunezGeneral Practice Physician1275451130
  19. Monica Nunez MojicaBehavior Technician1013751676
  20. Emmy Nur, D.D.S.Dentist1518113158
  21. Rebecca O'ConnorPhysical Therapist1508661950
  22. Corrie O'Toole, MSWClinical Social Worker1609071026
  23. Joseph O'Toole, MSWClinical Social Worker1508061920
  24. Tae Hoon Oak, L.ACAcupuncturist1316214802
  25. Casey Obradovitch, BCBABehavior Analyst1245799204
  26. Emely ObregonBehavior Technician1912862095
  27. Francisco ObregonBehavior Technician1720888449
  28. Alexis OcampoBehavior Technician1215803747
  29. Alicia OcampoBehavior Technician1427803972
  30. Ashley OchoaBehavior Technician1821679523
  31. Daniella OchoaBehavior Technician1427853845
  32. Jennyfer Ochoa-HernandezBehavior Technician1336090794
  33. Ebiere OchururBehavior Technician1255170700
  34. Angel OconBehavior Technician1932039906
  35. Brianna OetkenBehavior Technician1699602268
  36. Sally Oeung, O.D. INC.Optometrist1578843991
  37. Deukjae Oh, D.D.S.General Practice Dentistry1740336270
  38. Gene Oh, MDAnesthesiology Physician1235328683
  39. Junseung Oh, DDSGeneral Practice Dentistry1104975044
  40. Pansoo Oh, ACUPUNCTURISTAcupuncturist1295975928
  41. Seongkyung OhAcupuncturist1437861671
  42. Tieni OhBehavior Analyst1285323691
  43. Priyal Ohri, DDSPediatric Dentistry1003159864
  44. Roxana OjedaBehavior Technician1750149100
  45. Valerie Ojeda, AABehavior Technician1366384190
  46. Vanessa OjeikereBehavior Technician1518853332
  47. Kodichukwunm OkaforBehavior Technician1235835828
  48. Brenda OlivaresPhlebotomy Technician1669337812
  49. Iliana OlivaresBehavior Technician1518762889
  50. Yareth OlivaresMental Health Counselor1043878135

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

Garden Grove, California appears in the CMS National Plan and Provider Enumeration System with 4,572 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 Garden Grove - 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 Garden Grove 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 Garden Grove is weighted toward Behavior Technician (2,130 clinicians, followed by Pharmacist with 220 and Behavior Analyst with 203). 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, Garden Grove reports roughly 11.7 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.

For Garden Grove 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 Garden Grove, CA?

There are 4,572 registered healthcare providers in Garden Grove, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Garden Grove?

The most common specialties in Garden Grove are Behavior Technician, Pharmacist, Behavior Analyst, Mental Health Counselor, Marriage & Family Therapist. Behavior Technician has the most providers with 2,130.

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.