NPPES file of Aug 9, 2026

Doctors and health care providers in San Francisco, CA

38,143 individual NPPES records list a practice address in San Francisco, 3rd of 812 California cities. The largest group is students in training: 3,035, 8% of the city's records, against 4% across California. Page 294 of 763.

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

The 8 largest groups in San Francisco

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

San Francisco in California

  • Rank in California3rd of 812 cities by records
  • Share of the state3.9% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups19% of all records
  • Students in training rank2nd of the 10 California cities with the most

Compared with California as a whole, San Francisco has 3.8× the state's share of community health worker records and 0.15× its share of behavior technician records.

Providers in San Francisco, alphabetically

  1. Matthew Howlett, MDVascular & Interventional Radiology Physician1649039066
  2. Joan Howley, M.D.Anesthesiology Physician1689723744
  3. John Howse, MDAnesthesiology Physician1699853291
  4. Morgan Howson, MA, LMFTMarriage & Family Therapist1255684064
  5. Arthur HoyeCommunity Health Worker1346807765
  6. Creig Hoyt, MDOphthalmology Physician1497947675
  7. Paul Hoyt, D.D.S.General Practice Dentistry1407992563
  8. Ilona HrebennikovaMarriage & Family Therapist1447742762
  9. Henry Hsia, MDClinical Cardiac Electrophysiology Physician1518049048
  10. Stephanie Hsia, PHARM.D.Pharmacist1821474420
  11. Esther Hsiang, MDInternal Medicine Physician1619333952
  12. Susan Hsiang, PHARMDPharmacist1336413707
  13. Walter Hsiang, MD, MBAUrology Physician1770151920
  14. Chu Yun HsiaoStudent in an Organized Health Care Education/Training Program1316390214
  15. Diana Hsiao, MDStudent in an Organized Health Care Education/Training Program1174325492
  16. Edward Hsiao, M.D., PH.D.Endocrinology, Diabetes & Metabolism Physician1750316030
  17. Francis Hsiao, M.D., PHD.Dermatology Physician1982855185
  18. Katherine Hsiao, MDGynecology Physician1437237674
  19. Victoria Hsiao, MD, PHDEndocrinology, Diabetes & Metabolism Physician1659418655
  20. Angel Hsieh, PTAPediatric Physical Therapist1265607014
  21. Carolyn HsiehRegistered Dietitian1275173361
  22. Kristine Hsieh, MDInternal Medicine Physician1043534944
  23. Li-Chieh Hsieh, BCBABehavior Analyst1336997659
  24. Nancy Hsieh, DDS, MSPediatric Dentistry1538371554
  25. Sean HsiehAcupuncturist1245548627
  26. Virginia Hsieh, RN, BSN, CLCLactation Consultant (Registered Nurse)1477123214
  27. Yun Hsieh, O.M.D.Acupuncturist1194941005
  28. Min-Chen Hsieh KangStudent in an Organized Health Care Education/Training Program1285474106
  29. Richard Hsiung, PHARM. DPharmacist1255677183
  30. Alan HsuStudent in an Organized Health Care Education/Training Program1760325120
  31. Austin Hsu, MD, PHDPsychiatry Physician1174461651
  32. Chi-Yuan Hsu, MDNephrology Physician1578528295
  33. Chia-Yu HsuAdult Health Nurse Practitioner1497166144
  34. Derek Hsu, MDDermatology Physician1477944841
  35. Edward Hsu, PT, L.ACPhysical Therapist1649339995
  36. Erin Hsu, M.D.Infectious Disease Physician1366481509
  37. Fang HsuPhysical Therapist1841621596
  38. Gerald Hsu, MDMedical Oncology Physician1467501080
  39. I-Chow Hsu, M.D.Radiation Oncology Physician1144263039
  40. Jason HsuClinical Social Worker1831613959
  41. Jeremy HsuMarriage & Family Therapist1487488987
  42. Judy Hsu, MDInternal Medicine Physician1043384050
  43. Kai Hua Hsu, DCChiropractor1841927639
  44. Kaitlyn HsuStudent in an Organized Health Care Education/Training Program1407728579
  45. Ken Hsu, M.D.Orthopaedic Surgery of the Spine Physician1275695843
  46. Kristie Hsu, MDStudent in an Organized Health Care Education/Training Program1356978548
  47. Ling HsuBiostatiscian1609297456
  48. Lucy Hsu, N.P.Psychiatric/Mental Health Nurse Practitioner1013188333
  49. Lydia HsuContinuing Education/Staff Development Registered Nurse1114082005
  50. Pi-Chen HsuClinical Psychologist1588006910

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. Sacramento33,083
  4. San Jose20,925
  5. Fresno19,440

All of California →

How to read this directory

San Francisco, California appears in the CMS National Plan and Provider Enumeration System with 38,143 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 Francisco - 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 Francisco 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 Francisco is weighted toward Student in an Organized Health Care Education/Training Program (3,035 clinicians, followed by Marriage & Family Therapist with 2,542 and Community Health Worker with 1,674). 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 Francisco reports roughly 97.9 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 Analyst is the most prominent one with no provider currently listing a San Francisco practice address, a coverage gap San Francisco patients typically fill by traveling to a larger nearby hub.

For San Francisco 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 Francisco, CA?

There are 38,143 registered healthcare providers in San Francisco, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in San Francisco?

The most common specialties in San Francisco are Student in an Organized Health Care Education/Training Program, Marriage & Family Therapist, Community Health Worker, Counselor, Clinical Social Worker. Student in an Organized Health Care Education/Training Program has the most providers with 3,035.

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.