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 38 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
- Lindsay Marsh, CRNACertified Registered Nurse Anesthetist1003556184
- Jasmine MarshallAddiction (Substance Use Disorder) Counselor1831816347
- Tiel MarshallLicensed Vocational Nurse1326619479
- Aleni MartinClinical Social Worker1043094683
- Caila MartinBehavior Technician1104308568
- Christine MartinBehavior Analyst1740798594
- Eric MartinBehavior Technician1720812415
- Felicia Martin, MFTMarriage & Family Therapist1730123282
- Hannah MartinStudent in an Organized Health Care Education/Training Program1053244582
- Jacquelyn Martin, DPTPhysical Therapist1336992361
- Joseph MartinIndependent Duty Corpsman1679829360
- Kimberly MartinStudent in an Organized Health Care Education/Training Program1730634163
- Naomi Martin, MFTMarriage & Family Therapist1215252804
- Natalie MartinStudent in an Organized Health Care Education/Training Program1295031201
- Peter Martin, LMFTMarriage & Family Therapist1851743330
- Ricardo Cesar MartinPhysician Assistant1457189821
- Terri MartinAddiction (Substance Use Disorder) Counselor1265802466
- Cori Martin-SiebertSpeech-Language Pathologist1346616620
- Amadea MartinezMental Health Counselor1467851014
- Danika MartinezRegistered Dietitian1861173163
- David Martinez, PPSSchool Psychologist1871452995
- Donovan Martinez, PT, DPTPhysical Therapist1891210720
- Genesis MartinezBehavior Technician1356283410
- Giselle MartinezPharmacy Technician1043967938
- Irmina Martinez, DMDDentist1891714481
- Marty MartinezMental Health Counselor1538539036
- Norayma Martinez, ASWClinical Social Worker1669808267
- Selina Martinez, RDRegistered Dietitian1831882042
- Veronica Martinez, RRWAddiction (Substance Use Disorder) Counselor1275954067
- Zachary MartinezAddiction (Substance Use Disorder) Counselor1427501063
- Andreas Marwick, PHDClinical Psychologist1184182214
- Robert Mason, LVNLicensed Vocational Nurse1275854929
- Valerie Mason Dillard, MS, CCC-SLPSpeech-Language Pathologist1568943330
- Maurice Massoud, RPHPharmacist1275853822
- Jaron MastroianniAttendant Care Provider1760011191
- Amy Matayoshi, M.D.Nephrology Physician1417921982
- Marie Mateo, CNMAdvanced Practice Midwife1902910060
- Robert MathesAddiction (Substance Use Disorder) Counselor1548479868
- Gulalai MatinGeneral Practice Dentistry1457543472
- Malia Matteo, ATCAthletic Trainer1093265118
- Patricia Matthews, RDRegistered Dietitian1750879714
- Karen Matthews-Penagos, DDSGeneral Practice Dentistry1740451012
- Kenna Mauhili, PSY.D.Clinical Psychologist1386949360
- Gloria Maupin, MDGeneral Practice Physician1649694530
- Alyssa MauroDental Assistant1700483062
- Shira Max, PSY.D.Psychologist1205164233
- Jamie MaxfieldOrientation and Mobility Training Rehabilitation Counselor1053038794
- John Maxwell, L.AC.Acupuncturist1861603177
- Kathleen May, BCBABehavior Analyst1003799289
- Victoria MayclinBehavior Technician1538030317
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.