Best Internal Medicine Physician in Portola Valley
Looking for an internal medicine physician in Portola Valley? Most patients narrow the list by insurance first, then by location and reviews. 7 internal medicine physician appear below.
7 internal medicine physician in Portola Valley

Kathryn Joanne Hallsten, MD
4.5Kathryn Joanne Hallsten · Internal Medicine Physician
130 Portola Rd(650) 385-1970
Emma C Morton Bours, MD
4.5Emma C Morton Bours · Internal Medicine Physician
130 Portola Rd Suite C(650) 851-6000


Sylvia Hellene Friedberg, MD
4.5Sylvia Hellene Friedberg · Internal Medicine Physician
281 W Floresta Way(650) 854-5183
Malathi Acharya, MD
4.5Malathi Acharya · Internal Medicine Physician
130 Portola Rd Suite F(650) 671-2023
Gazebo Medical Corporation, P.C.
4.5Gazebo Medical Corporation, P.C. · Internal Medicine Physician
142 Crescent Ave(650) 714-2411
Internal Medicine Physician in Portola Valley by insurance
These providers list this insurance as accepted, but coverage should be confirmed directly with the provider before booking.
Internal Medicine Physician in nearby cities
Same specialty in cities near Portola Valley — useful if your insurance network extends across the metro.
About finding an internal medicine physician in Portola Valley
Portola Valley has internal medicine physician practicing across hospital systems, group practices, and independent clinics. When choosing an internal medicine physician in Portola Valley, the three factors most patients care about are: insurance acceptance, distance from home or work, and patient reviews. Heallexa shows all three on every listing so you can compare without clicking back and forth.
Many Portola Valley internal medicine physician list major insurance plans including Blue Cross Blue Shield, Aetna, UnitedHealthcare, Cigna, Humana, and Medicare. Listings reflect what providers have indicated they accept — always confirm in-network status directly with the office before booking. Out-of-network visits can cost 3–5× more than in-network ones.
Common questions about internal medicine physician in Portola Valley
How much does a visit to an internal medicine physician cost in Portola Valley?+
In-network internal medicine physician in Portola Valley typically run $120–$300 for an initial visit before insurance. Out-of-network rates can be 3–5× higher. Use the insurance filter above to see Portola Valley internal medicine physician who list your specific plan, and confirm acceptance directly with the office before booking.
Are Portola Valley internal medicine physician accepting new patients?+
Most Portola Valley listings indicate new-patient status on the profile. Wait times vary by specialty and insurance; calling the office directly is the fastest way to confirm same-week availability.
Which insurance plans do Portola Valley internal medicine physician list?+
Major plans in include Blue Cross Blue Shield, Aetna, UnitedHealthcare, Cigna, Humana, and Medicare. Listings show plans the provider has indicated they accept — always confirm in-network status directly with the office before your appointment.
Do I need a referral to see an internal medicine physician in Portola Valley?+
Most PPO plans in allow direct booking. HMO and many Medicare Advantage plans require a primary-care referral first. Confirm with your insurer or the office before booking.