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 17 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. Crystal RodriguezAddiction (Substance Use Disorder) Counselor1518311372
  2. Juan Rodriguez, M.D.Specialist1205925286
  3. Yvonne Rodriguez, MA, LMFTMarriage & Family Therapist1982255154
  4. Ivan Rokos, MDEmergency Medicine Physician1184681991
  5. Rebecca Romo, PSYDClinical Psychologist1215090220
  6. Adriana Ron-Mendez, LVNLicensed Practical Nurse1174891907
  7. Carsten Ronlov, M.D.Obstetrics & Gynecology Physician1841382876
  8. Heidi Roselle, LPCCMental Health Counselor1780133850
  9. Daniel Rosenbaum, MDOphthalmology Physician1619198702
  10. David Rosenberg, M.D.Neurology Physician1013959097
  11. Leslie RosenthalMassage Therapist1992825400
  12. Yaffa Rosner, LMFTMarriage & Family Therapist1780825141
  13. Jennifer Rozdal, LICENSED MFTMarriage & Family Therapist1346370830
  14. Jack Rubin, M.D.Internal Medicine Physician1700882479
  15. Richard Rucker, M.D.Internal Medicine Physician1659477685
  16. Francisco RuelasAddiction (Substance Use Disorder) Counselor1336980283
  17. Desiree RuizBehavior Technician1972496016
  18. Lindsey Ruiz Rivera, RNRegistered Nurse First Assistant1578080073
  19. Angela RussellClinical Social Worker1447688874
  20. Michelle Ryan, MDInternal Medicine Physician1568511913
  21. Neva Sacapano, PSY.D.Psychologist1962673764
  22. Priti Sahgal, M.D.Psychiatry Physician1457507436
  23. Jennifer SalsamedaFamily Nurse Practitioner1497076830
  24. Barry Samsamy, MDPediatric Adolescent Medicine Physician1447211917
  25. Sarah Sandell, MDInternal Medicine Physician1003983164
  26. Erica SanfordAddiction (Substance Use Disorder) Counselor1326698952
  27. Jeleena Santillana, MHS, PA-CPhysician Assistant1699294389
  28. Yolanda Santos, RPHPharmacist1992847792
  29. Maria Saquic, FNP-BCFamily Nurse Practitioner1417510199
  30. Grant Sarkisyan, M.D.Surgery Physician1134328859
  31. Trisha Sasaki, PT28307Physical Therapist1942369376
  32. Donna Savage, LMFT#84735Marriage & Family Therapist1144671215
  33. Kristy Scarlett, PH. D.Clinical Psychologist1851522270
  34. Marianne Schaeffer, PPSCounselor1821962747
  35. Jessica SchellerMedical Physician Assistant1457887101
  36. Christina Schmidt, OTR,L, CHTHand Occupational Therapist1306978143
  37. Stacy SchmitzSchool Counselor1073497566
  38. Steven Schoger, PSY.D.Clinical Psychologist1598980252
  39. Rebecca Schrock, LMFTMarriage & Family Therapist1952740664
  40. Rebecca Schwartz, MDObstetrics & Gynecology Physician1619931599
  41. Perry Secor, MDOrthopaedic Surgery Physician1548237795
  42. Michael Secrist, M.D.Vascular & Interventional Radiology Physician1184988669
  43. Stephanie Segovia, M.A., AMFTMarriage & Family Therapist1992547111
  44. Ellen Sehlmeyer, P.T. , MFTMarriage & Family Therapist1720289820
  45. Candia Seibly, OTR/LSpecialist1932349164
  46. Mary Seiersen, RDERegistered Dietitian1538282983
  47. Michaelle Seiter, LCSWClinical Social Worker1386886612
  48. Donald Serafano, MDOphthalmology Physician1144294455
  49. Lauren Shah, LCSWClinical Social Worker1407083017
  50. Reza Shahba, DCChiropractor1801555073

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.