NPPES file of Aug 9, 2026

Doctors and health care providers in Palo Alto, CA

7,617 individual NPPES records list a practice address in Palo Alto, 21st of 812 California cities. The largest group is students in training: 655, 9% of the city's records, against 4% across California. Page 6 of 153.

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

The 8 largest groups in Palo Alto

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

Palo Alto in California

  • Rank in California21st of 812 cities by records
  • Share of the state0.8% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups17% of all records

Compared with California as a whole, Palo Alto has 28.1× the state's share of pediatric cardiology physician records and 0.13× its share of behavior technician records.

Providers in Palo Alto, alphabetically

  1. Damian AnguloBehavior Technician1922838242
  2. Alvin Annen, MDPlastic and Reconstructive Surgery Physician1699286468
  3. Arash Anoshiravani, MDPediatric Adolescent Medicine Physician1235230566
  4. Jessica Ansari, MDAnesthesiology Physician1659637833
  5. David Ansel, MDDevelopmental - Behavioral Pediatrics Physician1376547612
  6. Allison Antalek, MSN, MPH, CPNP-PCPediatric Nurse Practitioner1366180416
  7. Christian AntonioCase Manager/Care Coordinator1598382764
  8. Amanda AntonoStudent in an Organized Health Care Education/Training Program1437846094
  9. Haroon AnwarSurgery Physician1700991924
  10. Kristina AoalinPhysical Therapist1518036383
  11. Midori Aogaichi, MDEmergency Medicine Physician1639580442
  12. Shannon Apel, M.A., CCC-SLPSpeech-Language Pathologist1750803219
  13. Robin Apple, PH.D.Psychologist1134284912
  14. Rommel Aquino, RNRegistered Nurse1275498768
  15. Swaroop Aradhya, PH.D.Ph.D. Medical Genetics1801343215
  16. Mateus Aragao Esmeraldo, MDDiagnostic Radiology Physician1720901291
  17. Christopher Arakawa, MD, PHD, MSStudent in an Organized Health Care Education/Training Program1962082461
  18. Douglas Arakawa, DDSGeneral Practice Dentistry1588876544
  19. Philamer ArandiaNurse Practitioner1417511437
  20. Karen Arane, MDPediatric Hematology & Oncology Physician1538720834
  21. Lisetta Arango, LMFTMarriage & Family Therapist1821767740
  22. Carlie Arbaugh, MDStudent in an Organized Health Care Education/Training Program1134681489
  23. Julie ArcaContinuing Education/Staff Development Registered Nurse1205784337
  24. Dominique Arce, MDAnesthesiology Physician1306080585
  25. Adrian ArcelonaAmbulatory Care Registered Nurse1992516660
  26. Cyril Archambault, MDStudent in an Organized Health Care Education/Training Program1013585090
  27. Eva Archer, MD, PHDPediatric Infectious Diseases Physician1699301663
  28. Amy Ardaya, PAPhysician Assistant1326649930
  29. Joseph ArdizzoneCase Manager/Care Coordinator1497490635
  30. Christinne Victorhia Arellano, NPFamily Nurse Practitioner1225573488
  31. Patrick Arensdorf, BA, MSMOther Specialist/Technologist1528308400
  32. Kristen Areyan, RNRegistered Nurse1316745508
  33. Yvonne ArguetaDental Assistant1396109765
  34. Elizabeth Arias, MDHospitalist Physician1104836535
  35. Marianne Arild, PT, PA-CPhysical Therapist1073741047
  36. Jason Arimura, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1912221805
  37. Paulina Arista, MDPediatric Cardiology Physician1932695830
  38. Maria Arizaga II, OTR/LPediatric Occupational Therapist1922651983
  39. Rosario ArlosAmbulatory Care Registered Nurse1629897509
  40. Ezequiel ArmentaBehavior Technician1225985120
  41. Erin Armer, PHDClinical Psychologist1093338386
  42. Daniel Armistead, DDSGeneral Practice Dentistry1831246024
  43. James Armontrout, MDAddiction Psychiatry Physician1215202403
  44. Allison ArmstrongNurse Practitioner1598261166
  45. Courtney Armstrong, PHDClinical Child & Adolescent Psychologist1578384046
  46. Katrina Armstrong, WHNPWomen's Health Nurse Practitioner1457975849
  47. Christi Arnerich, M.D.Otolaryngology Physician1588892723
  48. Jessica Arneson, LPCCMental Health Counselor1659786234
  49. Aaron Arnold, RNRegistered Nurse1417775693
  50. Cody Arnold, MDNeonatal-Perinatal Medicine Physician1669423091

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

Palo Alto, California appears in the CMS National Plan and Provider Enumeration System with 7,617 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 Palo Alto - 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 Palo Alto 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 Palo Alto is weighted toward Student in an Organized Health Care Education/Training Program (655 clinicians, followed by Pediatrics Physician with 321 and Nurse Practitioner with 318). 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, Palo Alto reports roughly 19.5 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 Palo Alto practice address, a coverage gap Palo Alto patients typically fill by traveling to a larger nearby hub.

For Palo Alto 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 Palo Alto, CA?

There are 7,617 registered healthcare providers in Palo Alto, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Palo Alto?

The most common specialties in Palo Alto are Student in an Organized Health Care Education/Training Program, Pediatrics Physician, Nurse Practitioner, Pharmacist, Clinical Psychologist. Student in an Organized Health Care Education/Training Program has the most providers with 655.

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.