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 14 of 21.
The 8 largest groups in Los Alamitos
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
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
- Rebekah Neal-Kraal, M.D.Rheumatology Physician1215165667
- Janise Nekoranec, PH.D.Cognitive & Behavioral Psychologist1831439652
- Richard Nelson, O.D.Optometrist1518065689
- Michele Nelson-Chung, LMFTMarriage & Family Therapist1548704612
- Talin Nemri, M.D.Internal Medicine Physician1891138269
- Sidney Newman, M.D.Specialist1235222860
- Oanh Ngo, PT, DPTOrthopedic Physical Therapist1104136662
- Bao-Chau Nguyen, MSMarriage & Family Therapist1578811600
- Christine Nguyen, NP-CFamily Nurse Practitioner1205392867
- Chung Nguyen, LCSWClinical Social Worker1316263932
- Denny NguyenSpeech-Language Assistant1912517624
- Jennie NguyenSpeech-Language Assistant1104653930
- Kim Nguyen, PHARM.DPharmacist1053776898
- Ly Nguyen, MSHand Occupational Therapist1346038270
- Phuonghong NguyenPharmacist1174187355
- Tammy Nguyen, PA-CPhysician Assistant1326682428
- Thai-Van Nguyen, M.D.Gastroenterology Physician1427082890
- Thi NguyenDentist1902505076
- Thomas Nguyen, M.D.Anesthesiology Physician1356322861
- Thuong-Phuong Nguyen, M.D.Psychiatry Physician1093009565
- Young Nguyen, MSW, LCSWClinical Social Worker1386867950
- Calvin Nguyen-Ho, MDAnesthesiology Physician1174100176
- Dalia Niknam, D.D.S.Dentist1841492576
- Peggy Nunes, RADTAddiction (Substance Use Disorder) Counselor1497247639
- Iweni Nwengela, PHARMD.Pharmacist1487164976
- Ryan O'DonellPsychiatric/Mental Health Nurse Practitioner1124679253
- Amanda O'NealMarriage & Family Therapist1023482866
- Timothy O'Neill, M.D.Cardiovascular Disease Physician1467493155
- Raymond Oca, DCChiropractor1316061930
- Xochitl OchoaBehavior Technician1356263545
- Elizabeth OdomAddiction (Substance Use Disorder) Counselor1548767882
- Sheila Oertwich Brown, LMFTMarriage & Family Therapist1760854566
- Lauren OgataOptometrist1790312064
- Saeko OkumuraBehavior Technician1487547535
- Craig Olsen, M.D.Endocrinology, Diabetes & Metabolism Physician1477529758
- Omid Omidvar, M.D.Neurology Physician1184678583
- Tracie Onaha-Nguyen, PHARM. D.Pharmacist1841467107
- Philip Oncley, PHDPsychologist1689692832
- Gay Opatrny, AUAudiologist-Hearing Aid Fitter1811171549
- Danielle Organista, LMFTMarriage & Family Therapist1568632487
- Robert Orkin, PSY.D.Psychologist1952478570
- Jennifer OrourkeAddiction (Substance Use Disorder) Counselor1770283012
- Donna OsbornLicensed Vocational Nurse1225302946
- Assad Oskuei, M.D.Pulmonary Disease Physician1528313210
- Arnold Ostrow, M.D.Specialist1932147824
- Lawrence Ota, D.D.S.Endodontics1700092244
- Alexis OtooleSchool Psychologist1013892504
- Adrian PadillaAddiction (Substance Use Disorder) Counselor1699247171
- Nelson Pai, DDSGeneral Practice Dentistry1104967959
- Jeannette Painovich, MA LACAcupuncturist1831222322
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
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.