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 56 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. Steven Romero, MDCardiovascular Disease Physician1629049556
  2. John Romine, M.D.Neurology Physician1932164530
  3. Olivia Ronan, PHARMDPharmacist1861849465
  4. Ain Roost, PH.D.Clinical Psychologist1871614461
  5. Shawn Alexa RosarioStudent in an Organized Health Care Education/Training Program1720881725
  6. Brent Rose, M.D.Radiation Oncology Physician1518250869
  7. Patricia Rose, PH.D.Clinical Psychologist1841304946
  8. Adam Rosen, D.O.Orthopaedic Surgery Physician1780656728
  9. Barbara Rosen, BARBARAPsychologist1093161648
  10. Jay Rosenberg, M.D.Neurology Physician1609804848
  11. A. Rosenfield, M.D.Orthopaedic Surgery Physician1588648968
  12. Yuki Rosenkoetter, PAPhysician Assistant1487744009
  13. Ekchhanak Rosenkranz, PA-CPhysician Assistant1023591054
  14. Zachery Rosensweet, DONeurology Physician1891228912
  15. Eric Rosenthal, PHD, SCM, CGCGenetic Counselor (M.S.)1831188465
  16. Isabella Rosnes.,, MS-CCC/SLPSpeech-Language Pathologist1659685584
  17. Bridget Ross, NPNurse Practitioner1891274346
  18. Deborah Ross, MA CCC SLPSpeech-Language Pathologist1841451887
  19. Randal Ross, PHARMDPharmacist1295452001
  20. Antoinette Roth, M.D.Diagnostic Radiology Physician1801812441
  21. Tomer Roth, MDDiagnostic Radiology Physician1528210416
  22. Harriet Rothschild, MDStudent in an Organized Health Care Education/Training Program1811747967
  23. Sherry Roy, RBTBehavior Technician1871023283
  24. Asia Rubalcava De La Cruz, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1437093911
  25. David Rubenson, M.D.Cardiovascular Disease Physician1821053349
  26. Elka Rubin, MDDiagnostic Radiology Physician1013701895
  27. Lewis Rubin, M.D.Internal Medicine Physician1457377780
  28. Lisa Ruderman, MA MFTMental Health Counselor1912044124
  29. Steven Ruderman, MDInternal Medicine Physician1700977311
  30. Charles Rudolph, MDOrthopaedic Surgery Physician1386636348
  31. Ross Rudolph, M.D.Plastic Surgery Physician1386609618
  32. Jose Ruiz, P.A.Physician Assistant1235122961
  33. Mariel Ruiz StasiukStudent in an Organized Health Care Education/Training Program1487303509
  34. Jennifer Rumsey, APRN, FNP-BC, DNPFamily Health Clinical Nurse Specialist1558735431
  35. Julie RumseyPhysical Therapy Assistant1396134698
  36. Garrett RuppStudent in an Organized Health Care Education/Training Program1447019039
  37. John Rusin, PT, DPT, CSCSSpecialist1568711406
  38. Jacob Russell, DDSGeneral Practice Dentistry1750411963
  39. Peter Russell, PH.D.Psychologist1770740631
  40. Francesco Russo, PHARM DPharmacist1306365101
  41. Robert Russo, M.D. PHDCardiovascular Disease Physician1730144064
  42. Samantha Russo, PHARMDPharmacist1639057227
  43. Tracy Ruymann, MDObstetrics & Gynecology Physician1336236371
  44. Andrew Ryan, PHARM.D.Pharmacist1962158972
  45. Janis Ryan, CCC-AAudiologist1952373904
  46. Sean Ryan, M.D.Psychiatry Physician1821031261
  47. John Saad, M.D.Otolaryngology Physician1710942198
  48. Jesus SabalaNurse Practitioner1881274512
  49. Samantha Sabala, LCSW, CCMSocial Worker1649898347
  50. David Sabourin, DDSDentist1730301045

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.