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 56 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. Glenn MarignyHealth Information Technician1013318591
  2. Hector Marin RodasBehavior Technician1922755529
  3. Sarah Mark-Drasin, M.D.Obstetrics & Gynecology Physician1700957610
  4. Safoora MarkarBehavior Technician1043853609
  5. Sherien-Isabelle MaroufkhaniBehavior Technician1548838618
  6. Mary MarquardtAssistant Health Information Record Technician1891274718
  7. Julio Marquez, PAPhysician Assistant1497686505
  8. Yadira MarquezBehavior Technician1871102962
  9. Taya MarroquinCounselor1972172070
  10. Emily Marsh, LCSWClinical Social Worker1316010721
  11. Mike Marsh, OTR/L, CHTHand Occupational Therapist1437120938
  12. Molly MarshAssistant Health Information Record Technician1861865933
  13. Noah MarshClinical Social Worker1861065138
  14. James Marshall, CMTMassage Therapist1972115558
  15. John MarshallBasic Emergency Medical Technician1790172492
  16. Stephanie Marshburn, MSWClinical Social Worker1295874501
  17. Mary Marth, PSY.D.Clinical Psychologist1831380146
  18. Carlos Martin, D.C.Chiropractor1760583694
  19. Heather MartinMental Health Counselor1811185002
  20. Jeraniqua MartinMental Health Counselor1659925329
  21. Joseph MartinCounselor1629107875
  22. Maricela Martin, RNCommunity Health Registered Nurse1710254081
  23. Tamara MartinDoula1144025008
  24. Emile Martin PalleyBehavior Analyst1437457199
  25. Aileen MartinezBehavior Technician1811529795
  26. Antonio MartinezRehabilitation Practitioner1912483470
  27. Emma MartinezStudent in an Organized Health Care Education/Training Program1053818138
  28. Guadalupe MartinezCounselor1114391455
  29. Jessica Martinez, CNMAdvanced Practice Midwife1013420678
  30. Jesus MartinezSchool Psychologist1699141325
  31. Kathleen Martinez, P.T.Physical Therapist1730248584
  32. Lindo MartinezStudent in an Organized Health Care Education/Training Program1750256145
  33. Lucretia MartinezChild Abuse Pediatrics Physician1811693526
  34. Roxanna Martinez, M.D.Pediatrics Physician1154594620
  35. Taylor MartinezAddiction (Substance Use Disorder) Counselor1467006809
  36. Tresa MartinezMarriage & Family Therapist1356891873
  37. Blanca Martinez GavinaCounselor1164654042
  38. Reyna Isabel Martinez LagunasBehavior Technician1164222477
  39. Griselda Martinez LunaOther Technician1225765928
  40. Diana Martinez PadillaCounselor1144891292
  41. Christina Martinez-FragosoBehavior Technician1205305703
  42. Christine Martinez-Suzukawa, LMFTMarriage & Family Therapist1073945861
  43. Brittney MarylandBehavior Technician1558856765
  44. Devon MarzoBehavior Technician1538740733
  45. Ceseana Marzouk, M.S., R.D.Registered Dietitian1750744959
  46. Anthony MascarenasAddiction (Substance Use Disorder) Counselor1134356538
  47. Jose Mascorro, A.S.W.Social Worker1548607708
  48. Jeffrey MashburnMental Health Counselor1346483724
  49. Helen MaslandCounselor1326276114
  50. Yekaterina MaslovaCounselor1578811287

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.