NPPES file of Aug 9, 2026

Doctors and health care providers in San Marcos, CA

1,985 individual NPPES records list a practice address in San Marcos, 113th of 812 California cities. The largest group is behavior technician: 553, 28% of the city's records, against 18% across California. Page 18 of 40.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

San Marcos in California

  • Rank in California113th of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups37.8% of all records

Compared with California as a whole, San Marcos has 4.9× the state's share of school counselor records and 0.49× its share of case manager/care coordinator records.

Providers in San Marcos, alphabetically

  1. Ellie JohnsonBehavior Technician1518728419
  2. James Johnson, DDSGeneral Practice Dentistry1700884384
  3. Sarah JohnsonBehavior Technician1568969897
  4. Cassandra JohnstonBehavior Technician1366966087
  5. Brad Jones, P.T., C.S.C.S.Orthopedic Physical Therapist1154582781
  6. Julie Jones, LCSWClinical Social Worker1922048255
  7. Leia JonesBehavior Technician1114653227
  8. Mackenzie JonesRegistered Dietitian1235028986
  9. Matthew JonesCase Manager/Care Coordinator1730770389
  10. Nicholas Jones, LCSWClinical Social Worker1063236156
  11. Shari Jones, M.S., CCC-SLPSpeech-Language Pathologist1962705210
  12. Sheila Jones, LVNLicensed Vocational Nurse1730440801
  13. Trenton JonesBehavior Technician1275463572
  14. Jenna JordanBehavior Technician1851857486
  15. Katie Jorstad, LCSWClinical Social Worker1912138587
  16. Gabriela JosephsBehavior Analyst1376035071
  17. Shaniya JoynerBehavior Technician1538964275
  18. Gabriela Juache-Velasco, PA-CPhysician Assistant1043830763
  19. Cristofer Juan RamirezBehavior Analyst1912486143
  20. Alejandro JuarezBehavior Analyst1477114494
  21. Cheryl Jucksch, FNP-BCFamily Nurse Practitioner1952538993
  22. William Kachele, D.M.DDentist1316308117
  23. Andrew KaewtavornPharmacist1841968385
  24. Vailyn KahleBehavior Technician1881494821
  25. Jamie KaiserBehavior Technician1982456679
  26. Linda Kaiser, LCSWClinical Social Worker1225018021
  27. Kelly Kaitson, LCSWClinical Social Worker1447764147
  28. Edward Kane, PT,PHD,ATC,ECS,SCSClinical Electrophysiology Physical Therapist1477524635
  29. Julie Kang, PHARM.D.Pharmacist1922426758
  30. Anna Kaplan, LMTMassage Therapist1225472871
  31. Lorne Kapner, M.D.Ophthalmology Physician1144255621
  32. Serge Kaska, M.D.Specialist1184661506
  33. Navdeep KaurLicensed Vocational Nurse1891434247
  34. Parminder Kaur, DDSGeneral Practice Dentistry1851601801
  35. Bree Kay, PT, DPTGeriatric Physical Therapist1306356001
  36. Sarah Kay, PAPhysician Assistant1538634209
  37. Anas Kayal, MDNephrology Physician1851376917
  38. Radmila Kazanegra, M.D.Obstetrics & Gynecology Physician1437277118
  39. Kenneth Keane, CADC-IIAddiction (Substance Use Disorder) Counselor1841694031
  40. Kelley KeatlyAcupuncturist1831021419
  41. Elizabeth KeckBehavior Technician1275005571
  42. Lisa KellerBehavior Technician1063237659
  43. Jada KellyBehavior Technician1316635931
  44. Kathleen KellyAddiction (Substance Use Disorder) Counselor1912875113
  45. Yantzy KempeRehabilitation Practitioner1497486948
  46. Hannah KennedyBehavior Analyst1710595491
  47. Sarah Kennedy, BADay Training/Habilitation Specialist1992638191
  48. Erin KernRehabilitation Practitioner1003481623
  49. Suzanne Kestell, R.N.Registered Nurse1336482132
  50. Sarah Ketcham, PA-CPhysician Assistant1972341691

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

San Marcos, California appears in the CMS National Plan and Provider Enumeration System with 1,985 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 San Marcos - 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 San Marcos 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 San Marcos is weighted toward Behavior Technician (553 clinicians, followed by Marriage & Family Therapist with 101 and Pharmacist with 96). 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, San Marcos reports roughly 5.1 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 San Marcos practice address, a coverage gap San Marcos patients typically fill by traveling to a larger nearby hub.

For San Marcos 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 San Marcos, CA?

There are 1,985 registered healthcare providers in San Marcos, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in San Marcos?

The most common specialties in San Marcos are Behavior Technician, Marriage & Family Therapist, Pharmacist, Physical Therapist, Addiction (Substance Use Disorder) Counselor. Behavior Technician has the most providers with 553.

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.