NPPES file of Aug 9, 2026

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 57 of 69.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Jeremy Siehnel, PHARM. D.Pharmacist1194109157
  2. Khamsy Siharath, RN.Registered Nurse1194167429
  3. Monica SiharathNurse's Aide1184029076
  4. Jennifer SiladiMental Health Counselor1720662422
  5. Bernando SilvaBehavior Technician1467399626
  6. Lorena SilvaSchool Social Worker1578496444
  7. Benjamin SilverAddiction (Substance Use Disorder) Counselor1932820701
  8. Joseph SilvestriBehavior Technician1568297208
  9. Suzanne Simmons, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1245733450
  10. Sarahanne SimpsonVeterinarian1982544110
  11. Chloe SimsBehavior Technician1003633520
  12. Melissa SimsAddiction (Substance Use Disorder) Counselor1750926200
  13. Steven Sims, MS, RN, AGPCNP-BCNurse Practitioner1316302151
  14. Amanda Simsiman, MDObstetrics & Gynecology Physician1528132560
  15. Ivana Sindolic, M.A.Mental Health Counselor1558632182
  16. Himani Singh, MDHematology & Oncology Physician1558546192
  17. Morgan Singleton, LICENSED VOC NURSELicensed Practical Nurse1225254980
  18. Briana SiongcoSpeech-Language Pathologist1609730761
  19. Melissa Sirichotiratana, M.D.Dermatology Physician1689961468
  20. Shaley SirisackBehavior Technician1346026044
  21. Katherine Siroky, MDFamily Medicine Physician1033798699
  22. Jennifer Skehan, M.ED. CCC-SLPSpeech-Language Pathologist1427422773
  23. Anthony SkinnerOphthalmology Physician1568733681
  24. Rory Skopek, FNP-CFamily Nurse Practitioner1104320241
  25. Eva Skulsky, P.A., M.P.A.S.Medical Physician Assistant1841536208
  26. Kathleen Skvarna, DPTPhysical Therapist1235760901
  27. Darla Slater-Troum, LVNLicensed Vocational Nurse1750829834
  28. Sara Sligh, LCSWClinical Social Worker1235221623
  29. Emily Sloan, RBTBehavior Technician1740895895
  30. Paul SlowikPodiatrist1053374686
  31. Brenda SmaleStudent in an Organized Health Care Education/Training Program1952596322
  32. Christina Smetana, LVNLicensed Vocational Nurse1578122214
  33. Delaney SmiddyBehavior Technician1801692058
  34. Amy SmithOccupational Therapist1144747783
  35. Bernadette SmithAdult Psychiatric/Mental Health Registered Nurse1538366166
  36. Cheyenne Smith, PT, DPTOrthopedic Physical Therapist1285109231
  37. Diana SmithMarriage & Family Therapist1790032837
  38. Erin SmithAddiction (Substance Use Disorder) Counselor1780398701
  39. Karlie SmithBehavior Technician1912495987
  40. Katelyn SmithBehavior Technician1679499271
  41. Kayla Smith, MPTOrthopedic Physical Therapist1780644708
  42. Keena SmithBehavior Analyst1487377917
  43. Kelly Smith, RADTAddiction (Substance Use Disorder) Counselor1366072449
  44. Kerren Smith, PPSSchool Social Worker1891588745
  45. Kristin SmithCounselor1801031505
  46. Marie SmithLicensed Practical Nurse1245042613
  47. Natalie Smith, MSWSocial Worker1801615943
  48. Perry Smith, D.C.Chiropractor1366451544
  49. Randall Smith, DDSGeneral Practice Dentistry1790744332
  50. Rickiah SmithBehavior Technician1124815246

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

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.