Doctors and health care providers in Los Altos Hills, CA
55 individual NPPES records list a practice address in Los Altos Hills, 564th of 812 California cities. The largest group is women's health nurse practitioner: 8, 15% of the city's records, against 0% across California. Page 2 of 2.
The 8 largest groups in Los Altos Hills
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Los Altos Hills in California
- Rank in California564th of 812 cities by records
- Share of the state<0.1% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups34.5% of all records
Providers in Los Altos Hills, alphabetically
- Saba Torabian, PHDBehavior Analyst1487173688
- Catherine Varsanyi, DDSGeneral Practice Dentistry1376094474
- Sarah Wallis, MSN CNM WHNP-BCWomen's Health Nurse Practitioner1063794659
- Lisa Walton, PHDPsychologist1043068463
- Julie Welsh, APRN-CObstetrics & Gynecology Nurse Practitioner1952308892
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Los Altos Hills, California appears in the CMS National Plan and Provider Enumeration System with 55 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 Los Altos Hills - 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 Los Altos Hills 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 Los Altos Hills is weighted toward Women's Health Nurse Practitioner (8 clinicians, followed by Family Nurse Practitioner with 7 and Nurse Practitioner with 4). 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, Los Altos Hills reports roughly 0.1 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 Los Altos Hills practice address, a coverage gap Los Altos Hills patients typically fill by traveling to a larger nearby hub.
For Los Altos Hills 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 Los Altos Hills, CA?
There are 55 registered healthcare providers in Los Altos Hills, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Los Altos Hills?
The most common specialties in Los Altos Hills are Women's Health Nurse Practitioner, Family Nurse Practitioner, Nurse Practitioner, Student in an Organized Health Care Education/Training Program, Obstetrics & Gynecology Nurse Practitioner. Women's Health Nurse Practitioner has the most providers with 8.
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.