NPPES file of Aug 9, 2026

Doctors and health care providers in Oakland, CA

18,558 individual NPPES records list a practice address in Oakland, 7th of 812 California cities. The largest group is marriage & family therapist: 1,576, 8% of the city's records, against 6% across California. Page 174 of 372.

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

The 8 largest groups in Oakland

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

Oakland in California

  • Rank in California7th of 812 cities by records
  • Share of the state1.9% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups22.2% of all records
  • Marriage & Family Therapist rank5th of the 10 California cities with the most

Compared with California as a whole, Oakland has 2.9× the state's share of counselor records and 0.29× its share of behavior technician records.

Providers in Oakland, alphabetically

  1. Tristan Klosterman, M.D.Otolaryngology Physician1871889709
  2. Daphna Klugman, M.S. ED.Mental Health Counselor1487854758
  3. Catherine Klumpp, M.S.Genetic Counselor (M.S.)1124179056
  4. Roberta KmetzRehabilitation Practitioner1508491945
  5. Spencer Knapp, PA-CPhysician Assistant1255842639
  6. Uganda KnappsMental Health Counselor1982128864
  7. John Kniffin, L.C.S.W.Social Worker1336350008
  8. Lynnette KnightMental Health Counselor1992128235
  9. Richard Knight, MDEmergency Medicine Physician1013055011
  10. Roneesha Knight, M.D.Emergency Medical Services (Emergency Medicine) Physician1962724948
  11. Ryan KnightStudent in an Organized Health Care Education/Training Program1568067981
  12. Senetria KnightAdult Companion1215816673
  13. Summer Knight, RN, CNMAdvanced Practice Midwife1467636159
  14. Tony KnightMental Health Counselor1508042359
  15. Amber KnightenCase Manager/Care Coordinator1649633280
  16. K Benjamin Knipe, PSYDClinical Psychologist1962537613
  17. Ruth Knittel, R.D.Registered Dietitian1891764783
  18. Janet Kniveton, D.C.Chiropractor1528375250
  19. Makynna KnockumDay Training/Habilitation Specialist1548006133
  20. Liliya KnopRegistered Nurse1417003765
  21. Shannon KnorrStudent in an Organized Health Care Education/Training Program1174231328
  22. Serena KnowlesCase Manager/Care Coordinator1871777144
  23. Alan Knox, CMTMassage Therapist1144148214
  24. Elithia KnoxSpecialist1063778975
  25. Jerome Knox, IMFMarriage & Family Therapist1578686655
  26. Jessica Knox, MDPublic Health & General Preventive Medicine Physician1588924989
  27. Kellie Knox, LMFTMarriage & Family Therapist1609067511
  28. Lizzie Knox, EDD, LCSWClinical Social Worker1205263092
  29. Stephen Knox, MDInternal Medicine Physician1255439345
  30. Mingus Knox WhiteDay Training/Habilitation Specialist1811810484
  31. Darryl Knudsen, A.B., M.I.A.Community Health Worker1700622693
  32. Amory KnutSpecialist1114454717
  33. Anthony Ko, MDInternal Medicine Physician1437237211
  34. Caroline Ko, DPMFoot & Ankle Surgery Podiatrist1588126288
  35. Hyung Ko, DMDDentist1013171396
  36. Jimmy Ko, MDAllergy & Immunology Physician1780624791
  37. Kenneth KoPhysical Therapist1629859376
  38. Soochung Ko, L.AC., DIPL. O.M.Acupuncturist1205959038
  39. Wynne Ko, DDSDentist1801959358
  40. Yin Ko-YoungStudent in an Organized Health Care Education/Training Program1669536801
  41. Jared KobliskaBehavior Analyst1356847354
  42. Vanessa Kobza, MS, RD, CSPPediatric Nutrition Registered Dietitian1326597543
  43. Grace Kodama, MFT, LPCCMarriage & Family Therapist1881834505
  44. Rachel Koebele, DPTPhysical Therapist1689228926
  45. Justin Koenig, DPTPhysical Therapist1689100927
  46. Lisa Koenig, D.C.Chiropractor1972652154
  47. Benjamin KoernerMental Health Counselor1821373788
  48. Raisa KoganMarriage & Family Therapist1730511585
  49. Henry Koh, MDPhysical Medicine & Rehabilitation Physician1356654446
  50. Francis Kohrs, MDFamily Medicine Physician1720030877

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

Oakland, California appears in the CMS National Plan and Provider Enumeration System with 18,558 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 Oakland - 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 Oakland 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 Oakland is weighted toward Marriage & Family Therapist (1,576 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,419 and Clinical Social Worker with 1,130). 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, Oakland reports roughly 47.6 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, General Practice Dentistry is the most prominent one with no provider currently listing a Oakland practice address, a coverage gap Oakland patients typically fill by traveling to a larger nearby hub.

For Oakland 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 Oakland, CA?

There are 18,558 registered healthcare providers in Oakland, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Oakland?

The most common specialties in Oakland are Marriage & Family Therapist, Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Mental Health Counselor, Behavior Technician. Marriage & Family Therapist has the most providers with 1,576.

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.