NPPES file of Aug 9, 2026

Doctors and health care providers in Los Alamitos, CA

1,035 individual NPPES records list a practice address in Los Alamitos, 183rd of 812 California cities. The largest group is marriage & family therapist: 105, 10% of the city's records, against 6% across California. Page 18 of 21.

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

Los Alamitos in California

  • Rank in California183rd of 812 cities by records
  • Share of the state0.1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups23.3% of all records

Compared with California as a whole, Los Alamitos has 7× the state's share of speech-language assistant records and 0.36× its share of behavior technician records.

Providers in Los Alamitos, alphabetically

  1. Adrian Shandling, MDCardiovascular Disease Physician1386640522
  2. Lawrence Shapiro, M.D.Specialist1922048917
  3. Jeanette Shattuck, OTR LHand Occupational Therapist1003948928
  4. Imad Shbeeb, MDColon & Rectal Surgery Physician1720063464
  5. Colleen Sheh, M.S. CCC-SLPSpeech-Language Pathologist1114692365
  6. James Sheppard, DOFamily Medicine Physician1255686044
  7. Mason Shieh, M.D., M.B.A.Emergency Medicine Physician1467718486
  8. Karen Shifflett-Collins, MFTMarriage & Family Therapist1275632986
  9. Constance Shih, M.D.Pediatrics Physician1679549752
  10. Margaret Shih, L.AC.Acupuncturist1881875748
  11. Richard Shin, MDDiagnostic Radiology Physician1356323737
  12. Jane ShintakuMarriage & Family Therapist1013450469
  13. Shokoufeh ShokriCommunity Health Registered Nurse1104473297
  14. Puja Shrestha, MDInternal Medicine Physician1376964718
  15. Reshma Shroff, RPHPharmacist1760601645
  16. Natalie Shum, MDEmergency Medicine Physician1114936358
  17. Yamin Shwe, MDVascular & Interventional Radiology Physician1558650002
  18. Leigh SibolboroAddiction (Substance Use Disorder) Counselor1063055846
  19. Diane Siegel, PH.D.Clinical Child & Adolescent Psychologist1700978095
  20. Kirsten SiegmanSpeech-Language Assistant1578358230
  21. Laura Siemens, PTPhysical Therapist1134289549
  22. Arthur SiliceoAddiction (Substance Use Disorder) Counselor1831670587
  23. Veronica SilverMental Health Counselor1083174445
  24. Gail Simpson, M.S.W.Clinical Social Worker1063624179
  25. Roubie Jeanne SingianBehavior Technician1316759830
  26. Chanida Sintuu, MDEmergency Medicine Physician1598774739
  27. Susan Sleep, MDInternal Medicine Physician1750458816
  28. Alexander SmithBehavior Technician1003616673
  29. Robert Smith, PH.D.Clinical Psychologist1730126491
  30. Roberta Smith, PAPhysician Assistant1316199714
  31. Wesley SmithAddiction (Substance Use Disorder) Counselor1821987652
  32. Crystal Sobrian, REGISTERED NURSEPsychiatric/Mental Health Nurse Practitioner1649702507
  33. Dana SonMarriage & Family Therapist1487538005
  34. Brooklyn SosaBehavior Technician1619806601
  35. Leah Southwick, LMFTMarriage & Family Therapist1356475735
  36. Dylan Spetzman, PTAPhysical Therapy Assistant1659922581
  37. Corinne StammAddiction (Substance Use Disorder) Counselor1033572953
  38. Randall Stark, D.C.Chiropractor1568674737
  39. Monica StelClinical Social Worker1467806851
  40. Mara Stevens, PA-CPhysician Assistant1790231967
  41. Robin Strickland, BAMental Health Counselor1245689579
  42. Renee Stroffe, PA-CPhysician Assistant1982028122
  43. Katelyn Stults, NPFamily Nurse Practitioner1144827072
  44. Edy Stumpf, MFTMarriage & Family Therapist1104973726
  45. Mallory Stuparich, M.D.Gynecology Physician1609166974
  46. Anna SturzBehavior Technician1326993932
  47. Maricruz Suber, FNP-CFamily Nurse Practitioner1437674348
  48. Leslie Sugita, MA, OTR/LOccupational Therapist1891076493
  49. Mathew Sullivan, PTPhysical Therapist1134469406
  50. Samantha SwiftSocial Worker1639503634

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

Los Alamitos, California appears in the CMS National Plan and Provider Enumeration System with 1,035 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 Los Alamitos - 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 Los Alamitos 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 Los Alamitos is weighted toward Marriage & Family Therapist (105 clinicians, followed by Addiction (Substance Use Disorder) Counselor with 71 and Behavior Technician with 65). 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, Los Alamitos reports roughly 2.7 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.

Of California's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Los Alamitos practice address, a coverage gap Los Alamitos patients typically fill by traveling to a larger nearby hub.

For Los Alamitos 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 Los Alamitos, CA?

There are 1,035 registered healthcare providers in Los Alamitos, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Los Alamitos?

The most common specialties in Los Alamitos are Marriage & Family Therapist, Addiction (Substance Use Disorder) Counselor, Behavior Technician, Internal Medicine Physician, Physical Therapist. Marriage & Family Therapist has the most providers with 105.

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.