Doctors and health care providers in Aliso Viejo, CA
568 individual NPPES records list a practice address in Aliso Viejo, 269th of 812 California cities. The largest group is marriage & family therapist: 37, 7% of the city's records, against 6% across California. Page 5 of 12.
The 8 largest groups in Aliso Viejo
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Aliso Viejo in California
- Rank in California269th of 812 cities by records
- Share of the state<0.1% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups18% of all records
Compared with California as a whole, Aliso Viejo has 3.4× the state's share of massage therapist records and 0.19× its share of behavior technician records.
Providers in Aliso Viejo, alphabetically
- Maria Gutierrez Enciso, B.A.Mental Health Counselor1043453327
- Brett Hadley, D.O.Emergency Medicine Physician1932499829
- Richard Hahn, DDSDentist1568688372
- Suzanne Hamasaki, LMFT 50982Marriage & Family Therapist1104095918
- Allen HanAcupuncturist1326493396
- Jacqueline Hanks, DDS, MSDOrthodontics and Dentofacial Orthopedics Dentistry1497948897
- Caroline Hanna, MFTMarriage & Family Therapist1427650506
- Ream HannaOccupational Therapy Assistant1598270977
- Guitta Harb, DMDDentist1053633800
- Lauren HarnessOccupational Therapy Assistant1528464443
- Sarah Harpst, NPFamily Nurse Practitioner1558845263
- Trenton HarrisonPhysician Assistant1710513965
- Daniel Haspert, M.D.Specialist1427023316
- Azeen HassanzadehPharmacist1164038436
- Morris Hasson, MDInternal Medicine Physician1760562821
- Brian Hauser, M.D.Family Medicine Physician1982674438
- Kimberly Hauser, O.D.Optometrist1699873109
- Jane Helmeczi, PTOrthopedic Physical Therapist1225362510
- Carolyn Henry, COTAOccupational Therapy Assistant1841408838
- Samuel Herman, M.D.Internal Medicine Physician1780063644
- Julia Hermes, MDChild & Adolescent Psychiatry Physician1841378239
- Sharleen Herrera, OTRPhysical Rehabilitation Occupational Therapist1083744296
- Robert HerrickPhysical Therapist1497921282
- Anselm Hii, M.D.Hematology (Pathology) Physician1124057393
- Shannon Hill, PT MPTPhysical Therapist1194768036
- Vu Ho, RPHPharmacist1255153433
- Kenneth Hoang, D.C.Chiropractor1811283484
- Sharon Hoier, NPAcute Care Nurse Practitioner1437537388
- Kristen HonePhysical Therapist1790154748
- Yijing HuangMarriage & Family Therapist1770351884
- Margaret Huffman, D.D.S.Dentist1164655106
- Brooke Huffstetler, LMFTMarriage & Family Therapist1457891905
- Mark Hughes, DPTPhysical Therapist1013226695
- Sarah Hultquist, LMFTMental Health Counselor1184232092
- Jennifer Hummel, M.D.Molecular Genetic Pathology (Pathology) Physician1942496609
- Karen Hummel, PHDClinical Psychologist1326856089
- Brian HuynhPhysician Assistant1215745138
- Melissa HwangFamily Nurse Practitioner1942821038
- Janine IjsselsteinCase Manager/Care Coordinator1275389835
- Joy IkenagaSpeech-Language Pathologist1750858155
- Kenneth Illson, DCChiropractor1659554525
- Takeshi Ito, D.C.Chiropractor1245244946
- Steven Itrich, P.T.Physical Therapist1881707792
- Nicko Jaeger, FNP-BCFamily Nurse Practitioner1669960076
- Erica JalandoniBehavior Technician1457048431
- Jan Johnson, BJ6359271Pediatric Adolescent Medicine Physician1326193632
- Jesse Johnson, DDSDentist1306003355
- Matt Johnson, D.D.S.General Practice Dentistry1942580014
- Jeffrey Jones, DDSGeneral Practice Dentistry1609977438
- Amir JourabchiFamily Medicine Physician1184159337
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Aliso Viejo, California appears in the CMS National Plan and Provider Enumeration System with 568 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 Aliso Viejo - 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 Aliso Viejo 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 Aliso Viejo is weighted toward Marriage & Family Therapist (37 clinicians, followed by Physical Therapist with 35 and Pharmacist with 30). 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, Aliso Viejo reports roughly 1.5 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 Aliso Viejo practice address, a coverage gap Aliso Viejo patients typically fill by traveling to a larger nearby hub.
For Aliso Viejo 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 Aliso Viejo, CA?
There are 568 registered healthcare providers in Aliso Viejo, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Aliso Viejo?
The most common specialties in Aliso Viejo are Marriage & Family Therapist, Physical Therapist, Pharmacist, General Practice Dentistry, Dentist. Marriage & Family Therapist has the most providers with 37.
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.