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 7 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. Daiana Chapman, MFTMental Health Counselor1508749425
  2. Zariah Chappell, MDFamily Medicine Physician1659990471
  3. Justin Charles, MDInternal Medicine Physician1811552771
  4. Kelly CharlesNurse Practitioner1932970290
  5. Kenneth Charp, DPMPodiatrist1841384203
  6. Vanessa ChavarinBehavior Technician1841834231
  7. Lyliana ChavezBehavior Technician1831034404
  8. Rick Chavez, DPTPhysical Therapist1770159220
  9. Gabriela Chavez-Obergfell, PT, DPT, MOT, OTR/LOccupational Therapist1467849760
  10. Barbara Chavez-Reyes, FNPFamily Nurse Practitioner1457084162
  11. Alberto Chavira, M.D.Specialist1508865759
  12. Amy Chaw, IMFTAddiction (Substance Use Disorder) Counselor1750561015
  13. Faran CheemaAddiction (Substance Use Disorder) Counselor1407664006
  14. Jing Chen, MD, PHDVascular & Interventional Radiology Physician1487145447
  15. Sherry ChenBehavior Analyst1861033862
  16. Zhenyi ChenBehavior Technician1043058795
  17. Traci Chester, LCSWClinical Social Worker1316104656
  18. Alicia ChettyMental Health Counselor1689156234
  19. Reem Chikh Ibrahim, DMDGeneral Practice Dentistry1083448450
  20. Guadalupe ChimBehavior Analyst1033629845
  21. Gary Chiswick, P.A.Medical Physician Assistant1174964001
  22. Kara ChoDental Hygienist1437021771
  23. Anthony Chu, PHARMDPharmacist1669203626
  24. Hilary ChuBehavior Technician1891439113
  25. Tina Chu, M.D.Pediatrics Physician1386030831
  26. Michael Chuang, DOSports Medicine (Family Medicine) Physician1487098802
  27. Kathleen ChurchillSchool Counselor1073447322
  28. Linda Cirolia, P.T.Orthopedic Physical Therapist1609070473
  29. Diva Clair, LMFTMarriage & Family Therapist1659525186
  30. Ryan Clapp, NPFamily Nurse Practitioner1841649761
  31. Lauren Clarine, D.O.Internal Medicine Physician1669738928
  32. Corrine Clark, PTOrthopedic Physical Therapist1679770465
  33. Marsha ClaytonStudent in an Organized Health Care Education/Training Program1851010490
  34. Amanda CleversSpeech-Language Pathologist1053827378
  35. Mary CliffordAddiction (Substance Use Disorder) Counselor1518205418
  36. Dana Clyman, OTR/LOccupational Therapist1083342380
  37. Brandon CochranAddiction (Substance Use Disorder) Counselor1821732694
  38. Kathleen Coco, CNMAdvanced Practice Midwife1184646036
  39. John Colaneri, PT, DPTPhysical Therapist1477983427
  40. Michelle Colarusso, LCSWClinical Social Worker1568704807
  41. Jordan ColbyDentist1861874471
  42. Ayden ColeBehavior Technician1700708765
  43. Jessica Cole, M.S., T.C.M., L.AC.Acupuncturist1467678797
  44. Arlette ColinBehavior Technician1710819800
  45. Caitlyn Collier, DPTPhysical Therapist1497390355
  46. Daria Collins, LMFTMarriage & Family Therapist1699315952
  47. Flavia Regina CollocaDentist1366168056
  48. Janae CombsBehavior Technician1164313037
  49. Anhtu ConlanSchool Counselor1033077383
  50. Erin Conroy, M.D.Obstetrics & Gynecology Physician1669731329

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.