Doctors in Palo Alto, CA
Active healthcare providers in Palo Alto sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.
Where this city sits in the corpus
Palo Alto ranks 21st among 805 California cities by CMS provider count, holding 0.8% of the state's NPIs, led by Student in an Organized Health Care Education/Training Program.
- 7,373
- NPPES providers in city
- 21st
- of 805 CA cities
- 0.8%
- of California providers
- 21.8%
- in top 3 specialties
Palo Alto ranks #11 of 10 California cities for Student in an Organized Health Care Education/Training Program.
Where Palo Alto ranks among California cities
Provider count vs every California city in CMS NPPES (805 cities)
7,373 Top 3% higher than 97% of 805 cities
Each bar is a band; taller bars hold more cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS National Plan & Provider Enumeration System (NPPES) · 2026
Specialty mix in Palo Alto
Share of the city's NPPES registrations by NUCC taxonomy
- Student in an Organi…
Student in an Organized Health Care Education/Training Program
694 providers
- Pediatrics Physician
Pediatrics Physician
664 providers
- Pharmacist 251
Pharmacist
251 providers
- Internal Medicine Ph… 243
Internal Medicine Physician
243 providers
- Clinical Psychologist 212
Clinical Psychologist
212 providers
- Psychiatry Physician 208
Psychiatry Physician
208 providers
- Nurse Practitioner 202
Nurse Practitioner
202 providers
- Clinical Social Worker 194
Clinical Social Worker
194 providers
- Physical Therapist 185
Physical Therapist
185 providers
- Marriage & Family Th… 183
Marriage & Family Therapist
183 providers
What this shows Student in an Organized Health Care Education/Training Program is the largest specialty (694 providers, 9.4% of the city), followed by Pediatrics Physician.
City vs state specialty index
Specialties Palo Alto has more, and fewer, of than California average
Each multiple is this city's share of a specialty divided by that specialty's average share across California , Palo Alto over-indexes pediatrics physician at 8.5× the state average and under-indexes behavior technician at 0.14×. This reflects local practice structure, not care quality.
More common here than California average
- Pediatrics Physician 8.5×
- Nurse Practitioner 3.7×
- Psychiatry Physician 3.4×
- Surgery Physician 3.3×
Less common here than California average
- Behavior Technician 0.14×
- Mental Health Counselor 0.35×
- Marriage & Family Therapist 0.45×
How to read this directory & data limitations
Palo Alto, California appears in the CMS National Plan and Provider Enumeration System with 7,373 registered healthcare providers spanning 20 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 2023 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 (694 clinicians, followed by Pediatrics Physician with 664 and Pharmacist with 251). 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 18.9 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, 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.
Which specialties are most common in Palo Alto
| # | Specialty | Providers | % of city |
|---|---|---|---|
| 1 | Student in an Organized Health Care Education/Training Program | 694 | 9.4% |
| 2 | Pediatrics Physician | 664 | 9.0% |
| 3 | Pharmacist | 251 | 3.4% |
| 4 | Internal Medicine Physician | 243 | 3.3% |
| 5 | Clinical Psychologist | 212 | 2.9% |
| 6 | Psychiatry Physician | 208 | 2.8% |
| 7 | Nurse Practitioner | 202 | 2.7% |
| 8 | Clinical Social Worker | 194 | 2.6% |
| 9 | Physical Therapist | 185 | 2.5% |
| 10 | Marriage & Family Therapist | 183 | 2.5% |
| 11 | Behavior Technician | 173 | 2.3% |
| 12 | Registered Nurse | 165 | 2.2% |
| 13 | Psychologist | 149 | 2.0% |
| 14 | Physician Assistant | 138 | 1.9% |
| 15 | Anesthesiology Physician | 131 | 1.8% |
Healthcare Providers (Page 6)
| Name |
|---|
| Kristina Aoalin Physical Therapist |
| Midori Aogaichi, MD Emergency Medicine Physician |
| Shannon Apel, M.A., CCC-SLP Speech-Language Pathologist |
| Robin Apple, PH.D. Psychologist |
| Rommel Aquino, RN Registered Nurse |
| Swaroop Aradhya, PH.D. Ph.D. Medical Genetics |
| Christopher Arakawa, MD, PHD, MS Student in an Organized Health Care Education/Training Program |
| Douglas Arakawa, DDS General Practice Dentistry |
| Philamer Arandia Family Medicine Physician |
| Karen Arane, MD Pediatric Hematology & Oncology Physician |
| Lisetta Arango, LMFT Marriage & Family Therapist |
| Carlie Arbaugh, MD Student in an Organized Health Care Education/Training Program |
| Dominique Arce, MD Anesthesiology Physician |
| Adrian Arcelona Ambulatory Care Registered Nurse |
| Cyril Archambault, MD Student in an Organized Health Care Education/Training Program |
| Eva Archer, PHD, MD Student in an Organized Health Care Education/Training Program |
| Amy Ardaya, PA Physician Assistant |
| Joseph Ardizzone Student in an Organized Health Care Education/Training Program |
| Christinne Victorhia Arellano, NP Registered Nurse |
| Patrick Arensdorf, BA, MSM Other Specialist/Technologist |
| Kristen Areyan, RN Registered Nurse |
| Yvonne Argueta Dental Assistant |
| Elizabeth Arias, MD Internal Medicine Physician |
| Marianne Arild, PT, PA-C Physical Therapist |
| Jason Arimura, PHARM.D. Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist |
| Paulina Arista, MD Internal Medicine Physician |
| Maria Arizaga II, OTR/L Pediatric Occupational Therapist |
| Rosario Arlos Ambulatory Care Registered Nurse |
| Erin Armer, PHD Psychologist |
| Daniel Armistead, DDS General Practice Dentistry |
| James Armontrout, MD Forensic Psychiatry Physician |
| Allison Armstrong Pediatric Registered Nurse |
| Courtney Armstrong, PHD Clinical Psychologist |
| Katrina Armstrong, WHNP Women's Health Nurse Practitioner |
| Ovester Armstrong Mental Health Counselor |
| Christi Arnerich, M.D. Otolaryngology Physician |
| Jessica Arneson, LPCC Mental Health Counselor |
| Aaron Arnold, RN Registered Nurse |
| Cody Arnold, MD Pediatrics Physician |
| Bruce Arnow, PHD Psychologist |
| Jen Aronowitz, PH.D. Clinical Neuropsychologist |
| Christianna Aronstam, LMT Specialist |
| Rohini Arramreddy, MD Internal Medicine Physician |
| Kianna Arriaran Student in an Organized Health Care Education/Training Program |
| Cammon Arrington, MD, PHD Pediatrics Physician |
| Maria Arriola Case Manager/Care Coordinator |
| Clare Arroyo, MD Diagnostic Radiology Physician |
| Jenna Arruda, MPH, MD Pediatrics Physician |
| William Arthur, D.P.M. Sports Medicine Podiatrist |
| Kavitha Arulmozhi, MD Pediatrics Physician |
Nearby Cities in California
Other California cities with provider coverage in the CMS NPPES registry.
Frequently Asked Questions
How many doctors are in Palo Alto, CA?
What are the most common medical specialties in Palo Alto?
Related guides
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Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.