NPPES file of Aug 9, 2026

Doctors and health care providers in San Leandro, CA

4,976 individual NPPES records list a practice address in San Leandro, 35th of 812 California cities. The largest group is counselor: 827, 17% of the city's records, against 1% across California. Page 42 of 100.

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).

The 8 largest groups in San Leandro

  1. Counselor827
  2. Mental Health Counselor481
  3. Behavior Technician362
  4. Marriage & Family Therapist322
  5. Clinical Social Worker270
  6. Students in training144
  7. Community Health Worker144
  8. Pharmacist132

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

San Leandro in California

  • Rank in California35th of 812 cities by records
  • Share of the state0.5% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups33.6% of all records
  • Counselor rank2nd of the 10 California cities with the most

Compared with California as a whole, San Leandro has 83.1× the state's share of assistant health information record technician records and 0.41× its share of behavior technician records.

Providers in San Leandro, alphabetically

  1. Agnieszka Janisiewicz, M.D.Otolaryngology Physician1467615104
  2. Justine Joyce JansuyMental Health Counselor1235683228
  3. Avery JantzenCounselor1598281206
  4. Nathaniel Jaramillo, BSBehavior Technician1336715200
  5. Maria JarquinMental Health Counselor1144436205
  6. Maria Jarquin-GarciaMarriage & Family Therapist1962177642
  7. Laura JarvisSchool Psychologist1316213044
  8. Andrew JasperCommunity Health Registered Nurse1871464073
  9. Ernesto Jasso, PTPhysical Therapist1043752397
  10. Britny JaureguiBehavior Technician1770174054
  11. Tayyaba JavaidCase Manager/Care Coordinator1780254797
  12. Tamara Jayasuriya, PT, DPTPhysical Therapist1245908920
  13. Grace Jebara, MAMarriage & Family Therapist1396083804
  14. Jeannette JeffreyStudent in an Organized Health Care Education/Training Program1124807565
  15. Jaime JenkinsCounselor1821499302
  16. Lindsay JenkinsCounselor1386035699
  17. Casey JenksMental Health Counselor1891121554
  18. Viorica JenningsCase Manager/Care Coordinator1386037489
  19. Lisa Jensen, C.N.M.Advanced Practice Midwife1700159373
  20. Ashley JerezCounselor1689138596
  21. Tamara JeriesMarriage & Family Therapist1033794292
  22. Petra JermanSpecialist1164997581
  23. Kelly JessenCounselor1730516550
  24. Anika JettCounselor1356986970
  25. Khaleel- Shane JettMental Health Counselor1255893640
  26. Ronald JettAddiction (Substance Use Disorder) Counselor1033678172
  27. Timothy JeungCounselor1679128698
  28. Sejal Jhatakia, M.D.Internal Medicine Physician1871577312
  29. Katrina Jhun, M.D.Pediatrics Physician1346471224
  30. Cesar JimenezOther Technician1760646947
  31. Jenny JimenezBehavior Analyst1992290092
  32. Jose Jimenez, B.A.Social Worker1902110729
  33. Mariela JimenezCounselor1023485075
  34. Vannesa JimenezMental Health Counselor1295216869
  35. Mario Jimenez ValenciaDay Training/Habilitation Specialist1871337972
  36. Tiffanie JinboOther Specialist/Technologist1942456751
  37. Belinda Jinks, FNPCFamily Nurse Practitioner1073658340
  38. Mannie Joel, M.D.Specialist1720043599
  39. Sukhi Johal, MDPsychiatry Physician1417158981
  40. Anna Lisa Johannsdottir, PSY.DClinical Child & Adolescent Psychologist1902238348
  41. Michael JohansenCounselor1487021432
  42. Kingsley Johnetebom, RNRegistered Nurse1346137866
  43. Aisha JohnsonMental Health Counselor1467630574
  44. Alisha JohnsonCounselor1043619133
  45. Darryl JohnsonPeer Specialist1003704040
  46. Delance JohnsonAddiction (Substance Use Disorder) Counselor1396545307
  47. Desiree JohnsonMental Health Counselor1790236529
  48. Geinel JohnsonMental Health Counselor1730539321
  49. Jordan JohnsonCommunity Health Worker1790263044
  50. Karen JohnsonMarriage & Family Therapist1629528146

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 Leandro, California appears in the CMS National Plan and Provider Enumeration System with 4,976 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 Leandro - 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 Leandro 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 Leandro is weighted toward Counselor (827 clinicians, followed by Mental Health Counselor with 481 and Behavior Technician with 362). 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 Leandro reports roughly 12.8 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.

For San Leandro 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 Leandro, CA?

There are 4,976 registered healthcare providers in San Leandro, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in San Leandro?

The most common specialties in San Leandro are Counselor, Mental Health Counselor, Behavior Technician, Marriage & Family Therapist, Clinical Social Worker. Counselor has the most providers with 827.

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.