NPPES file of Aug 9, 2026

Doctors and health care providers in Lake Forest, CA

1,008 individual NPPES records list a practice address in Lake Forest, 186th of 812 California cities. The largest group is behavior technician: 292, 29% 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 →

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 Lake Forest

  1. Behavior Technician292
  2. Marriage & Family Therapist51
  3. Pharmacist43
  4. Physical Therapist38
  5. Chiropractor37
  6. General Practice Dentistry35
  7. Speech-Language Pathologist34
  8. Acupuncturist33

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

Lake Forest in California

  • Rank in California186th of 812 cities by records
  • Share of the state0.1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups38.3% of all records

Compared with California as a whole, Lake Forest has 5.3× the state's share of speech-language assistant records and 0.26× its share of student in an organized health care education/training program records.

Providers in Lake Forest, alphabetically

  1. Leslie Gonzalez-MartinezBehavior Technician1700761632
  2. Steven Goodman, L.AC.Acupuncturist1851425243
  3. John Gooing, DCChiropractor1235723685
  4. Bryce Gordon, ATC, MA, CESAthletic Trainer1285289611
  5. Arezou Goshtasbi, D.D.S.General Practice Dentistry1073832705
  6. Cinthya GrajedaBehavior Technician1629869003
  7. Hanna GreenPsychiatric/Mental Health Nurse Practitioner1568273597
  8. Nathanael GreenPeer Specialist1225923931
  9. Janiyah GreeneBehavior Technician1144181777
  10. William Gregg, DDSDentist1568589729
  11. Heather Grifftih, BCBABehavior Analyst1275832818
  12. Michael Grossman, M.D.Family Medicine Physician1942367008
  13. Victoria GudinoBehavior Technician1508722752
  14. Christine Guevara, MOTROccupational Therapist1912052093
  15. Charick GuillenBehavior Technician1871429621
  16. Heba Guirguis, DDSGeneral Practice Dentistry1629247390
  17. Tiffany GunnemannRegistered Dietitian1992298426
  18. Peifen Gunter, RPHPharmacist1720513781
  19. David Gutierrez, M.D.Anesthesiology Physician1568690873
  20. Gabriel GutierrezBehavior Analyst1508600792
  21. Therese GutierrezBehavior Technician1063006708
  22. Irvin Guzman, COTA/LOccupational Therapy Assistant1619782398
  23. Jennifer HaasBehavior Technician1568300325
  24. Dina HaddadMental Health Counselor1114661659
  25. David Haggard, DDSGeneral Practice Dentistry1396915641
  26. Mohammad Haider, D.D.S.Dentist1134484900
  27. Sanalia HallBehavior Technician1164304747
  28. Paula HambletonGeneral Practice Dentistry1144357500
  29. Micah Hamilton, DCChiropractor1235467051
  30. Susan HammoudehMental Health Counselor1255589081
  31. Caroline Hamner, MFTMarriage & Family Therapist1538179973
  32. Hong Han, L.ACAcupuncturist1932467024
  33. Tiffany HanAssistant Health Information Record Technician1518544642
  34. Kiara HangBehavior Technician1134018484
  35. Janet Hanna, MFTMarriage & Family Therapist1265649610
  36. Colleen Hannegan, RDOOptician1619024601
  37. Zhen HaoAcupuncturist1851610216
  38. Jennifer HareClinical Social Worker1861846354
  39. Brendan Harkins, D.C.Chiropractor1316922578
  40. Callie HarperAthletic Trainer1659861623
  41. Suzanne Harris, L.AC.Acupuncturist1992922694
  42. Kaili HarrisonBehavior Technician1295660553
  43. Shelby Hart, PA-CPhysician Assistant1417755323
  44. Nadia Hashemi SernaInterpreter1841006897
  45. Iliana Hendrix, CSTSurgical Technologist1629665518
  46. Sandra HeplerBehavior Technician1609762640
  47. Rylie Herbel, COTAOccupational Therapy Assistant1538953062
  48. Alexis HernandezBehavior Technician1548112550
  49. Nathan HernandezBehavior Technician1477417459
  50. Reina HernandezBehavior Technician1811856297

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

Lake Forest, California appears in the CMS National Plan and Provider Enumeration System with 1,008 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 Lake Forest - 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 Lake Forest 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 Lake Forest is weighted toward Behavior Technician (292 clinicians, followed by Marriage & Family Therapist with 51 and Pharmacist with 43). 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, Lake Forest 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 Lake Forest practice address, a coverage gap Lake Forest patients typically fill by traveling to a larger nearby hub.

For Lake Forest 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 Lake Forest, CA?

There are 1,008 registered healthcare providers in Lake Forest, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Lake Forest?

The most common specialties in Lake Forest are Behavior Technician, Marriage & Family Therapist, Pharmacist, Physical Therapist, Chiropractor. Behavior Technician has the most providers with 292.

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.