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 69 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
- Siyi Yung, M.D.Pediatrics Physician1790042851
- Todd Zaayer, M.D.Emergency Medicine Physician1184618738
- Jafar Zadeh, PAPhysician Assistant1316060098
- Shannon Zahn, PT, DPTPhysical Therapist1750996625
- Allison ZaideRehabilitation Practitioner1194477059
- Florence Zaide, D.M.D.General Practice Dentistry1811915069
- David ZalomekPharmacist1306239769
- Prajakta Zambare, PT, DPTPhysical Therapist1457045577
- Michelle ZambranaCase Manager/Care Coordinator1700450269
- Edgar Zamora, MDAnesthesiology Physician1629501994
- Lidia ZamoraDay Training/Habilitation Specialist1063203065
- Shelzea Zamora, APCCProfessional Counselor1801321534
- Yuen-Ha Zander, AMFT, APCCMarriage & Family Therapist1588408140
- Regina Paulette Zaragoza, RPHPharmacist1104085331
- Christina Zarate, HHPMassage Therapist1750140190
- Fereshteh Zaringhalam, LCSWClinical Social Worker1356426399
- Suzanne Zaw, R.N.Registered Nurse1568624328
- Nicole Zawada, MDEmergency Medicine Physician1366903486
- Jan ZawislanskiStudent in an Organized Health Care Education/Training Program1912681271
- Karina ZeferinoBehavior Technician1699337204
- Dylan Zeman, RBTBehavior Technician1427564277
- Lynn ZenickMental Health Counselor1649539875
- Gregory Zhang, MDFamily Medicine Physician1295360006
- Colin Zhu, D.O.Family Medicine Physician1639424732
- Valerie ZiesmerRegistered Nurse1033967500
- David Zimmerman, RPHPharmacist1346525847
- Maria ZimmermanBehavior Technician1760280747
- Stephanie Zimmerman, RNCritical Care Medicine Registered Nurse1134799331
- Andres Zimmermann, MDGeriatric Medicine (Internal Medicine) Physician1114904422
- Michelle Zimny, P.T.Physical Therapist1851845192
- Emily ZonaMarriage & Family Therapist1457876146
- David ZookMental Health Counselor1801742416
- Juan Zorrilla, M.D.Emergency Medicine Physician1861487506
- Diego Zorrilla SanchezAttendant Care Provider1881346369
- Nathan Zundel, M.D.Emergency Medicine Physician1174784052
- Blanca Zuniga-OrtegaSchool Counselor1962355875
- Lea ZweigMental Health Counselor1831325083
- Carol Zwiebach, PSYClinical Psychologist1932170313
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.