Doctors and health care providers in Oceanside, CA
3,438 individual NPPES records list a practice address in Oceanside, 66th of 812 California cities. The largest group is behavior technician: 314, 9% of the city's records, against 18% across California. Page 45 of 69.
The 8 largest groups in Oceanside
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Oceanside in California
- Rank in California66th of 812 cities by records
- Share of the state0.4% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups20.6% of all records
Compared with California as a whole, Oceanside has 9.3× the state's share of attendant care provider records and 0.52× its share of behavior technician records.
Providers in Oceanside, alphabetically
- Sophia NouriMental Health Counselor1295319838
- Georganne Novak, MDFamily Medicine Physician1063426294
- Lemuel NovencidoSurgical Technologist1013213255
- Megan Novo, MDGastroenterology Physician1770961971
- Gabriela Novota, M.D.Pediatrics Physician1154520096
- Alexis NunezAttendant Care Provider1003464553
- David Nunez, LVNLicensed Vocational Nurse1417146150
- Olivia NunezBehavior Technician1609749894
- Barbara Nunley, LMFTMarriage & Family Therapist1346910312
- Crystal Nunley, LCSWClinical Social Worker1053723916
- Diana Nunley, LVNLicensed Vocational Nurse1427640549
- Asha Nuthi, D.O.Retina Specialist (Ophthalmology) Physician1851393243
- Claire O'Brien, DPTPhysical Therapist1952903064
- Laci O'Brien, SUDRCAddiction (Substance Use Disorder) Counselor1497403026
- Suzanne O'Brien, PH.D.Clinical Psychologist1164462883
- Christopher O'ConnellPhysical Therapist1710606009
- Amy O'Donnell, LVNLicensed Vocational Nurse1528569373
- Trisha O'Donnell, N.D.Naturopath1063645976
- Hannah O'LearyBehavior Technician1063221729
- Derrick O'NealPhysical Therapist1558611350
- Stephanie O'NeilMarriage & Family Therapist1689177602
- Linette Oakley, R.N.Registered Nurse1780761569
- Andrew ObandoClinical Social Worker1144715202
- David Oblon, MDHematology & Oncology Physician1215072434
- Portia ObrienBehavior Technician1285330530
- Dianne Lyn Ocan, MSN, APRN, FNPFamily Nurse Practitioner1184318305
- Gertrude Ochi, RNHospice Registered Nurse1962234740
- Lois Ochrym, LCSWClinical Social Worker1891236063
- Sean Odenwalder, DMDDentist1538416441
- Shannen Odonnell, RBTBehavior Technician1700441870
- Bismark Oh, MDEmergency Medicine Physician1669524021
- Bianca OjedaBehavior Technician1417750415
- Hejira Ojeda, M.S.Marriage & Family Therapist1982905170
- Rachel OlesenPhysical Therapist1801460829
- Veronica OlivaresRehabilitation Practitioner1457861130
- Marlene Olivas-GradiasCase Manager/Care Coordinator1932856325
- Monique OlivieriPeer Specialist1821704610
- Krister OlssonPhysical Therapist1316878358
- Oluwapelumi Olukotun, APRN, CCMCase Manager/Care Coordinator1265820278
- Josefina Olvera, B.A.Mental Health Counselor1093152308
- Jessica OnanianSpeech-Language Pathologist1851003867
- Denise Oneil, M.S.Marriage & Family Therapist1063824126
- Vicky Ong, PTPhysical Therapist1629961131
- Jorge Ontiveros-Ramirez, MDEmergency Medicine Physician1881055853
- Jennifer Orallo, RNRegistered Nurse1134428436
- Annette Orduno, CRNACertified Registered Nurse Anesthetist1902204423
- Elizabeth OrnelasSpeech-Language Pathologist1790472371
- Monica Oropeza, LCSWClinical Social Worker1801096060
- Dian Orr, LVNLicensed Vocational Nurse1831450360
- Cameron Ortega, RBTBehavior Technician1629713219
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Oceanside, California appears in the CMS National Plan and Provider Enumeration System with 3,438 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 Oceanside - 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 Oceanside 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 Oceanside is weighted toward Behavior Technician (314 clinicians, followed by Addiction (Substance Use Disorder) Counselor with 203 and Mental Health Counselor with 190). 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, Oceanside reports roughly 8.8 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, Internal Medicine Physician is the most prominent one with no provider currently listing a Oceanside practice address, a coverage gap Oceanside patients typically fill by traveling to a larger nearby hub.
For Oceanside 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 Oceanside, CA?
There are 3,438 registered healthcare providers in Oceanside, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Oceanside?
The most common specialties in Oceanside are Behavior Technician, Addiction (Substance Use Disorder) Counselor, Mental Health Counselor, Physical Therapist, Marriage & Family Therapist. Behavior Technician has the most providers with 314.
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.