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 22 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. Jamssen Lumanta, BSN, RNStudent in an Organized Health Care Education/Training Program1427975887
  2. Toan LuongPharmacist1851660740
  3. Jared Lurie, LMFTMarriage & Family Therapist1154197820
  4. Amara LusterBehavior Technician1407571128
  5. Jonathan Luu, DPTPhysical Therapist1225584105
  6. Robert LyonsAddiction (Substance Use Disorder) Counselor1982163994
  7. Mercedes Macall, LCSWClinical Social Worker1225858988
  8. Paige MacedoBehavior Technician1467343541
  9. Mariana Machaen MoralesMarriage & Family Therapist1366108300
  10. Alissa Macias, MSN FNP-BCFamily Nurse Practitioner1952658445
  11. Hector MaciasBehavior Technician1275478844
  12. Rosa Mackinnon, SLPSpeech-Language Pathologist1689141525
  13. Mary Anne Maclellan, M.A., CCC, SLPSpeech-Language Pathologist1053440479
  14. Elicia MaeseBehavior Technician1639066947
  15. Erica MaestasBehavior Technician1043855216
  16. Diana MagadanBehavior Technician1023846193
  17. Libni MaganaBehavior Technician1548902885
  18. Nydia MaganaBehavior Technician1396442802
  19. Yamileth MagandaBehavior Technician1427902774
  20. Derrick MageeLicensed Vocational Nurse1811483738
  21. Tracy Magie, D.C.Chiropractor1558433714
  22. Julia Magno, DPTOrthopedic Physical Therapist1801670013
  23. Cynthia Magnuson, PH.D. CCC-SLPSpeech-Language Pathologist1548665524
  24. Claudia MairesseBehavior Technician1629786652
  25. Janell Makaipo, LMFTMarriage & Family Therapist1114450640
  26. Austin MalfavonBehavior Technician1851002760
  27. Arati Malhotra, M.D.Pediatrics Physician1215135306
  28. Jack MallecBehavior Technician1215798335
  29. Jamie Malneritch, RN, IBCLCLactation Consultant (Registered Nurse)1902761893
  30. Barbara Malone, M.A., CCC-SLPSpeech-Language Pathologist1376902205
  31. Yidda MancinasAddiction (Substance Use Disorder) Counselor1467014191
  32. Dondra MandakMarriage & Family Therapist1407731870
  33. Nikolai ManekHealth Information Specialist/Technologist1912620964
  34. Ledesma Mangubat, MDFamily Medicine Physician1730237769
  35. Hannah Manhas, DCChiropractor1174212666
  36. Cynthia Manly, NPPsychiatric/Mental Health Nurse Practitioner1043650450
  37. Stephen MannBehavior Technician1942151428
  38. Lisa MantheBehavior Technician1154114437
  39. Corina Manzo, MSN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1669087326
  40. Desty Manzo-Chua, M.D.Family Medicine Physician1386909638
  41. Alyssa MaplesPhysical Therapist1639681034
  42. Kaitlyn MarchBehavior Technician1063175065
  43. Isabella MarchantBehavior Technician1326793225
  44. Sessy MarconClinical Social Worker1366250425
  45. Beatriz Marfori, MDPsychiatry Physician1053484006
  46. Karmella MaribaoBehavior Technician1750943213
  47. Margaux Maribao, PT, DPTPhysical Therapist1518884915
  48. Jacob MarisnickBehavior Technician1801785316
  49. Philip Marjon, M.D.Hematology & Oncology Physician1912234121
  50. Donna Marmolejo, DPTPediatric Physical Therapist1467534511

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.