Doctors and health care providers in Portola Valley, CA
84 individual NPPES records list a practice address in Portola Valley, 511th of 812 California cities. The largest group is physical therapist: 8, 10% of the city's records, against 2% across California.
The 8 largest groups in Portola Valley
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Portola Valley in California
- Rank in California511th of 812 cities by records
- Share of the state<0.1% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups22.6% of all records
Providers in Portola Valley, alphabetically
- Malathi Acharya, M.D.Integrative Medicine Physician1871671453
- Janet Andrews, DDSDentist1053703421
- Amy Babcock, PTPhysical Therapist1053394445
- Sueann Barsh, OTD, OTR/LOccupational Therapist1700762457
- Kristine BesioCommunity Health Worker1669110177
- Craig Brandman, M.D.Cardiovascular Disease Physician1295004687
- Deleys Brandman, M.DSpecialist1891927463
- Burton BrentPlastic Surgery Physician1073915039
- Eva BryerRegistered Nurse1932238730
- Eugene Butcher, M.D.Anatomic Pathology Physician1316342546
- Linda Callegari, N.P.Women's Health Nurse Practitioner1689945628
- Ingbritt ChristensenMarriage & Family Therapist1124991179
- Donald Coluzzi, DDSDentist1659611770
- Erika Demas, PTAPhysical Therapy Assistant1154799658
- Jocelyn Dunn, MDSurgery Physician1689684961
- Daniel Fay, DPTPhysical Therapist1518444298
- Sylvia Friedberg, M.D.Internal Medicine Physician1396886925
- Mackenzie Froeberg, MAMarriage & Family Therapist1760002398
- Andrew Fung, DPTPhysical Therapist1336474899
- Lisa Green, MOMT, MPT, ATCOrthopedic Physical Therapist1528193240
- Bradley Greenblott, M.D.Psychiatry Physician1114299864
- Bradley Greene, MDFacial Plastic Surgery Physician1811098379
- Kathryn Hallsten, M.D.Internal Medicine Physician1184750861
- Adam HardyBasic Emergency Medical Technician1780924290
- Anne HenzelOphthalmology Physician1942355953
- Rosemary Hintz, MFTMarriage & Family Therapist1689745630
- Ellen Hoffman, D.C.Chiropractor1417045279
- Leslie Hsu, M.D.Psychiatry Physician1699846725
- Haley Issichopoulos, MSM, PA-CMedical Physician Assistant1699288027
- Wilfred Jaeger, M.D.Health Educator1427340306
- Nile Jones, RNRegistered Nurse1720946049
- Courtney Jonson, L.AC.Acupuncturist1083748784
- Daniel Kaplan, RNRegistered Nurse1710586920
- Jessica Kassis, M.D.Obstetrics & Gynecology Physician1033394424
- Ann Kearney, MASpeech-Language Pathologist1306050448
- Kerry Kravitz, M.D.Psychiatry Physician1225132269
- Richard Laude, M.D.Psychiatry Physician1932243458
- Jamie Leach, D.D.S.Dentist1356764039
- Fariba Lessani, O.D.Optometrist1568512184
- Jia Li, LMFTMarriage & Family Therapist1861086670
- Meredith LierkCounselor1093669822
- Rebecca LongInternal Medicine Physician1639007172
- Joann Loulan, M.A.Marriage & Family Therapist1851596183
- Lawrence Masket, MDEmergency Medicine Physician1093893877
- Jarrod Maslin, PT, DPT, ATCPhysical Therapist1407308224
- Johanna Mayer, PHDPsychologist1114054335
- Carolyn McClain, M.D.Public Health & General Preventive Medicine Physician1649472929
- Karen Mittelstadt, LACAcupuncturist1538651872
- John Moore, D.C.Chiropractor1932200110
- Maxwell Moore, DCChiropractor1194325365
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Portola Valley, California appears in the CMS National Plan and Provider Enumeration System with 84 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 Portola Valley - 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 Portola Valley 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 Portola Valley is weighted toward Physical Therapist (8 clinicians, followed by Internal Medicine Physician with 6 and Psychiatry Physician with 5). 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, Portola Valley reports roughly 0.2 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 Portola Valley practice address, a coverage gap Portola Valley patients typically fill by traveling to a larger nearby hub.
For Portola Valley 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 Portola Valley, CA?
There are 84 registered healthcare providers in Portola Valley, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Portola Valley?
The most common specialties in Portola Valley are Physical Therapist, Internal Medicine Physician, Psychiatry Physician, Marriage & Family Therapist, Chiropractor. Physical Therapist 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.