NPPES file of Aug 9, 2026

Doctors and health care providers in Greenbrae, CA

727 individual NPPES records list a practice address in Greenbrae, 234th of 812 California cities. The largest group is anesthesiology physician: 46, 6% of the city's records, against 1% across California. Page 14 of 15.

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

Greenbrae in California

  • Rank in California234th of 812 cities by records
  • Share of the state<0.1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups16.2% of all records

Compared with California as a whole, Greenbrae has 16.8× the state's share of advanced practice midwife records and 0.39× its share of student in an organized health care education/training program records.

Providers in Greenbrae, alphabetically

  1. Patrick Thompson, N.P.Psychiatric/Mental Health Nurse Practitioner1558474023
  2. Alexander Threlfall, MDPsychiatry Physician1669538187
  3. Sean Tiret, MDEmergency Medicine Physician1770043119
  4. Gregg Tolliver, M.D.Infectious Disease Physician1346286465
  5. Allen Tolman, R.N.Psychiatric/Mental Health Registered Nurse1780795567
  6. Signy Toquinto, CNM, WHNP, RNAdvanced Practice Midwife1922564624
  7. Ernest Torigoe, MDRadiation Oncology Physician1720060700
  8. John Toups, OTROccupational Therapist1962248856
  9. Nancy Trahms, M.D.Psychiatry Physician1740289149
  10. William Trahms, D.C.Chiropractor1548480478
  11. Bao Ngoc Tran, MDPlastic Surgery Physician1528478799
  12. Katherine Tran, MDEmergency Medicine Physician1265992606
  13. Michael Turrigiano, MICHAEL TURRIGIANOMarriage & Family Therapist1356533780
  14. Scott TwetenAnesthesiology Physician1457458606
  15. Alexander Uihlein, M.D.Endocrinology, Diabetes & Metabolism Physician1801043880
  16. Paul Ulrich, M.D.Anesthesiology Physician1649361437
  17. Brenda Underhill, M.S.Addiction (Substance Use Disorder) Counselor1255510327
  18. Katrina Urbach, M.D.Pediatrics Physician1578584744
  19. Peter Uzelac, M.D.Reproductive Endocrinology Physician1356345789
  20. Frank Van Der Heusen, MDAnesthesiology Physician1790815058
  21. Albert Varner, MDGastroenterology Physician1023071925
  22. Dina Vaynberg, M.D.Obstetrics & Gynecology Physician1598051575
  23. Sruthi VeeragandhamBasic Emergency Medical Technician1962373738
  24. Ann Vercoutere, M.D.Surgery Physician1972515971
  25. Yadira Vigil, LMFTMarriage & Family Therapist1740391614
  26. Molly Vila, MDAnesthesiology Physician1649579491
  27. Jaspreet Vohra, MDEmergency Medicine Physician1124413869
  28. Kirsten Voss, M.D.Obstetrics & Gynecology Physician1740267939
  29. Lauren Voss, PA-CPhysician Assistant1073904207
  30. Nicole VuongPharmacist1609424878
  31. Emil Vutescu, MDOrthopaedic Surgery Physician1356870638
  32. Rishi WadhwaNeurological Surgery Physician1841401734
  33. Stephen Wagstaff, D.P.M.Foot & Ankle Surgery Podiatrist1831196849
  34. Lynn Wahl, LCSWClinical Social Worker1104900752
  35. Debra WalhofPediatrics Physician1912900499
  36. Peter Walsh, M.D.Mental Health Counselor1477890846
  37. Aileen WangEndocrinology, Diabetes & Metabolism Physician1801167887
  38. Paul Wasserstein, MDAnatomic Pathology & Clinical Pathology Physician1467560094
  39. Christopher WatersPsychiatric/Mental Health Registered Nurse1649037797
  40. Deborah Weber, NPFamily Nurse Practitioner1033356696
  41. Igor Weisz, M.D.Psychiatry Physician1417070822
  42. Jeffrey WeitzmanEmergency Medicine Physician1063434348
  43. David Welper, RNRegistered Nurse1487098851
  44. Jasper WerbyPsychiatry Physician1427517150
  45. Maya Whearty, RDH;RDHAPDental Hygienist1770039125
  46. Aalaya Wheeler, ASWSocial Worker1861124034
  47. Kimberly Wian, NPPsychiatric/Mental Health Nurse Practitioner1366918344
  48. Jenna Williams, MS, CCC-SLPSpeech-Language Pathologist1114888930
  49. Jessica WilliamsStudent in an Organized Health Care Education/Training Program1407015753
  50. Gerald Wilner, M.D.Gynecology Physician1285730275

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

Greenbrae, California appears in the CMS National Plan and Provider Enumeration System with 727 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 Greenbrae - 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 Greenbrae 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 Greenbrae is weighted toward Anesthesiology Physician (46 clinicians, followed by Marriage & Family Therapist with 37 and Clinical Social Worker with 35). 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, Greenbrae reports roughly 1.9 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 Technician is the most prominent one with no provider currently listing a Greenbrae practice address, a coverage gap Greenbrae patients typically fill by traveling to a larger nearby hub.

For Greenbrae 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 Greenbrae, CA?

There are 727 registered healthcare providers in Greenbrae, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Greenbrae?

The most common specialties in Greenbrae are Anesthesiology Physician, Marriage & Family Therapist, Clinical Social Worker, Registered Nurse, Obstetrics & Gynecology Physician. Anesthesiology Physician has the most providers with 46.

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.