NPPES file of Aug 9, 2026

Doctors and health care providers in La Jolla, CA

3,648 individual NPPES records list a practice address in La Jolla, 59th of 812 California cities. The largest group is students in training: 317, 9% of the city's records, against 4% across California. Page 61 of 73.

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

The 8 largest groups in La Jolla

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

La Jolla in California

  • Rank in California59th of 812 cities by records
  • Share of the state0.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18.1% of all records

Compared with California as a whole, La Jolla has 7.7× the state's share of hematology & oncology physician records and 0.37× its share of marriage & family therapist records.

Providers in La Jolla, alphabetically

  1. Michael Siegel, M.D.Nuclear Imaging & Therapy Physician1285885681
  2. Thais Siewert, PMHNPPsychiatric/Mental Health Nurse Practitioner1194348318
  3. Gary Sigafoos, D.D.S.Periodontics1891910857
  4. Darren Sigal, MDMedical Oncology Physician1417120080
  5. Cassie Sigler, AMFT, APPCMarriage & Family Therapist1164264610
  6. Jamie Signorino, DDS,MSDOrthodontics and Dentofacial Orthopedics Dentistry1093921926
  7. Alexandra Silberstein, PA-CPhysician Assistant1992466130
  8. Denise Silbert, RN, CNS, PH.DPsychiatric/Mental Health Clinical Nurse Specialist1619028263
  9. Stephen Silk, PH.D.Psychologist1376760066
  10. Allan Silver, MDObstetrics & Gynecology Physician1699868810
  11. Dee Silver, MDNeurology Physician1932210556
  12. Elizabeth Silverman, MDObstetrics & Gynecology Physician1730242942
  13. Gregg Silverman, M.D.Internal Medicine Physician1952327009
  14. Michael Silverman, M.D.Gynecologic Oncology Physician1376568741
  15. Diane Simeone, MDSurgery Physician1215038138
  16. Josepha Simi, PA-CPhysician Assistant1861893729
  17. Sarah Simmons, MDPsychiatry Physician1548308331
  18. Noelle Simms, DNP, FNP-CNurse Practitioner1760027528
  19. Fred Simon, MDSurgery Physician1568525566
  20. Scott Simon, M.D.Urology Physician1841237955
  21. Michael Simons, DPMPodiatrist1356459051
  22. Stacy Simons, NP-CFamily Nurse Practitioner1952844185
  23. Julia Simonton, L.AC.Acupuncturist1043557051
  24. Daniel Simpson, M.D.Radiation Oncology Physician1689974883
  25. Suzanne Simpson, PDHClinical Psychologist1669491106
  26. James Sinclair, M.D.Hematology & Oncology Physician1356300230
  27. Abha Singh, M.B., B.S.Internal Medicine Physician1710144423
  28. Ramandeep Singh, MDGeriatric Medicine (Internal Medicine) Physician1942662796
  29. Renu Singh, PHARM.D.Pharmacotherapy Pharmacist1124339627
  30. Preetika Sinh, M.D.Gastroenterology Physician1497047369
  31. Jack Sipe, M.D.Neurology Physician1366400160
  32. Alan SitStudent in an Organized Health Care Education/Training Program1538516943
  33. Emily Skarda, MDOrthopaedic Hand Surgery Physician1710548300
  34. Matthew Skinner, M.D.Gastroenterology Physician1609133750
  35. Tricia Skipper, M.D.General Practice Physician1407003338
  36. Tammarah SklarzHematology (Internal Medicine) Physician1013570241
  37. Eric Skoblar, M.D.Family Medicine Physician1770509036
  38. Edward Skol, M.D.Rheumatology Physician1255304630
  39. Ugne Skripkus, M.D.Diagnostic Radiology Physician1720051113
  40. Paige Sloane, PSY.D, LMFT, CADCMarriage & Family Therapist1861650624
  41. Mark Slonim, M.D.Surgery of the Hand (Surgery) Physician1730410747
  42. Daniel SmallPharmacist1174917983
  43. Jacqueline Small, PA-CPhysician Assistant1598410615
  44. Charles Smith, M.D.Neurology Physician1700959426
  45. David Smith, M.D.Orthopaedic Surgery Physician1962497636
  46. David Smith, M.D.Emergency Medicine Physician1093749665
  47. Diana Smith, MS PTPhysical Therapist1083948418
  48. Lorna Smith, MOTR/LOccupational Therapist1053775916
  49. Michael Smith, M.D.Cardiovascular Disease Physician1043233786
  50. John Smoot, M.D.Plastic Surgery Physician1366537904

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

La Jolla, California appears in the CMS National Plan and Provider Enumeration System with 3,648 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 La Jolla - 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 La Jolla 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 La Jolla is weighted toward Student in an Organized Health Care Education/Training Program (317 clinicians, followed by Pharmacist with 185 and Internal Medicine Physician with 158). 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, La Jolla reports roughly 9.4 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, Behavior Technician is the most prominent one with no provider currently listing a La Jolla practice address, a coverage gap La Jolla patients typically fill by traveling to a larger nearby hub.

For La Jolla 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 La Jolla, CA?

There are 3,648 registered healthcare providers in La Jolla, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in La Jolla?

The most common specialties in La Jolla are Student in an Organized Health Care Education/Training Program, Pharmacist, Internal Medicine Physician, Physician Assistant, Clinical Psychologist. Student in an Organized Health Care Education/Training Program has the most providers with 317.

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.