NPPES file of Aug 9, 2026

Doctors and health care providers in Alameda, CA

2,492 individual NPPES records list a practice address in Alameda, 91st of 812 California cities. The largest group is behavior technician: 1,047, 42% of the city's records, against 18% across California. Page 34 of 50.

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

The 8 largest groups in Alameda

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

Alameda in California

  • Rank in California91st of 812 cities by records
  • Share of the state0.3% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups54.8% of all records

Compared with California as a whole, Alameda has 6.3× the state's share of other technician records and 0.29× its share of case manager/care coordinator records.

Providers in Alameda, alphabetically

  1. Alberto OrtizBehavior Technician1689338923
  2. Kiara OrtizBehavior Analyst1285192021
  3. Mark OrtizStudent in an Organized Health Care Education/Training Program1669067294
  4. Emily Ortiz GuzmanBehavior Technician1710651492
  5. Julio Ortiz LopezBehavior Analyst1821759077
  6. Katerine Ortiz-EnriquezBehavior Analyst1790420263
  7. Mar Ortmann, LCSWClinical Social Worker1750535654
  8. Rebecca Osburne-Rothstein, LCSWClinical Social Worker1518415264
  9. Ellen Ostergren, LCSWSocial Worker1134325582
  10. Eric Otani, M.DEmergency Medicine Physician1417977901
  11. Jennifer OtisBehavior Technician1437818531
  12. Manysay OudomvongBehavior Technician1831797695
  13. Shanice OwensBehavior Technician1124653795
  14. Stephanie OwensBehavior Analyst1285103838
  15. Charizma OzaetaBehavior Technician1821751447
  16. Krystal Ozanick, M.D.Child & Adolescent Psychiatry Physician1841580032
  17. Joanne PabelonioBehavior Technician1184369324
  18. Mariana Pacas MexicanoBehavior Analyst1659862571
  19. Don Pacheco, PPS, M.S.School Psychologist1063219707
  20. Katrina PachecoBehavior Technician1427606375
  21. Reveriana PachecoBehavior Technician1487230827
  22. Licia PadhamBehavior Technician1073119897
  23. Alexa PadillaAssistant Behavior Analyst1679059190
  24. Cassandra PadillaBehavior Technician1871184622
  25. Andy PaekProfessional Counselor1396480844
  26. Michelle PairMarriage & Family Therapist1346779592
  27. John Pakula, MDFamily Medicine Physician1184626418
  28. Sandra Palacios LuquezBehavior Technician1194466128
  29. Kavya PalepuBehavior Technician1063053510
  30. Sophia Palmerin OrtizBehavior Technician1467119560
  31. Angela PalmersMental Health Counselor1013131358
  32. Meridith PaloPhysician Assistant1033625272
  33. Katherine PalomaresBehavior Technician1720756224
  34. Ahide PalomeraDay Training/Habilitation Specialist1164021846
  35. Jenny PanchalStudent in an Organized Health Care Education/Training Program1346994357
  36. Ramona Pandher, DDSGeneral Practice Dentistry1942517784
  37. Lai Pang, ODOptometrist1184180259
  38. Andrew PangelinanBehavior Technician1437895075
  39. Angelica ParedesBehavior Technician1124660642
  40. Liset ParedesBehavior Technician1043954381
  41. Linette Parin BatestingBehavior Technician1538621552
  42. Daniel Park, MDPediatrics Physician1881335693
  43. Esperanza ParkBehavior Technician1922741610
  44. Jonathan ParkBehavior Technician1881271096
  45. Justice ParkBehavior Technician1538700935
  46. Mathew ParkStudent in an Organized Health Care Education/Training Program1245563378
  47. Rondie ParkBehavior Technician1609682608
  48. Barbara Parker, M.D.Pediatrics Physician1235128919
  49. Barrett Parker, D.D.S., M.S.Orthodontics and Dentofacial Orthopedics Dentistry1235256017
  50. Margaret ParsonsOccupational Therapist1164299673

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

Alameda, California appears in the CMS National Plan and Provider Enumeration System with 2,492 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 Alameda - 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 Alameda 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 Alameda is weighted toward Behavior Technician (1,047 clinicians, followed by Behavior Analyst with 217 and Marriage & Family Therapist with 102). 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, Alameda reports roughly 6.4 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, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Alameda practice address, a coverage gap Alameda patients typically fill by traveling to a larger nearby hub.

For Alameda 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 Alameda, CA?

There are 2,492 registered healthcare providers in Alameda, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Alameda?

The most common specialties in Alameda are Behavior Technician, Behavior Analyst, Marriage & Family Therapist, Pharmacist, Clinical Social Worker. Behavior Technician has the most providers with 1,047.

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.