--- title: "Dr. Diana H. Hess | Internal Medicine Doctor in Castro Valley, CA | Sutter Health" description: "Dr. Diana H. Hess, M.D. practices Internal Medicine in Castro Valley, CA" url: "https://www.sutterhealth.org/find-provider/dr-diana-h-hess-1089981800" --- 1. [Home](https://www.sutterhealth.org/) / 2. [Find a provider](https://www.sutterhealth.org/find-provider) / 3. Diana H. Hess, M.D. ![Diana H. Hess, M.D.](https://dyn.mktgcdn.com/p/C3jld_z2OHauBc3cUX0VpeSG04WYfspA4RbY1dHKB-I/fit=crop,gravity=auto,dpr=2,width=230,height=230) 4.9/5 [(129 ratings)](https://www.sutterhealth.org/star-ratings) # Diana H. Hess, M.D. ## Internal Medicine - Not accepting new patients [20101 Lake Chabot RoadFloor 3Castro Valley, CA 94546](https://www.google.com/maps/dir/?api=1&destination=20101+Lake+Chabot+Road+Castro+Valley%2C+CA+94546+US) ## Have you seen this provider before? Schedule in My Health Online. [Sign in to schedule](https://myhealthonline.sutterhealth.org/MHO/Scheduling?workflow=ExistingProvider) Jump to: - [About](https://www.sutterhealth.org/find-provider/dr-diana-h-hess-1089981800#provider-about) - [Insurance](https://www.sutterhealth.org/find-provider/dr-diana-h-hess-1089981800#provider-health-plans) - [Locations](https://www.sutterhealth.org/find-provider/dr-diana-h-hess-1089981800#provider-locations) - [Services](https://www.sutterhealth.org/find-provider/dr-diana-h-hess-1089981800#provider-services) ## About Dr. Hess Languages English Gender Female Uses [My Health Online](https://www.sutterhealth.org/patient-resources/my-health-online) for scheduling and messaging Offers [video visits](https://www.sutterhealth.org/find-care/video-visits) for existing patients ### Approach to care I am joining the Sutter Health community after completing my Internal Medicine residency and two years of practice in primary care at UC Irvine. My philosophy of care is to serve as a guide and confidant for my patients. to make shared decisions that will improve their health and wellness. ### Professional highlights Yorba Linda Senior Community Center, March 2023 - Organized nutrition presentation and cooking demonstration at the senior community center; Medicine and Horsemanship Medical School Group, January 2016-2019 - led students in therapeutic riding classes at organized events to promote awareness of equine-assisted therapy. ### Outside of medicine Outside of Medicine, personal interests include cooking, running, tennis, travel. ## Education and training **Medical school:** University of Central Florida **Internship:** University of California, Irvine **Residency:** University of California, Irvine ## Board certifications - Internal Medicine ## Affiliations ### Medical groups - Sutter East Bay Medical Group ## Accepted insurance Search plan or carrier name **Aetna (20 plans)** ### Aetna - Aetna Choice POS II - Aetna Select EPO - Aetna Select Open Access - Aetna Signature Administrators (ASA) - Aetna Student Health Program - Aetna Value Network HMO (AVN) - Health Fund HMO (aka HMO/HRA) - Health Fund POS - HMO - HMO Deductible Plans - Managed Choice POS - National Advantage Plan (NAP) - Open Access Elect Choice EPO - Open Access Managed Choice POS - Open Choice PPO - Quality Point of Service (QPOS) - Stanford University Faculty & Staff (SUFS) - Copay Plan - Open Access Aetna Select - Stanford University Faculty & Staff (SUFS) ACA High Deductible Health Plan POS II (ACA HDHP-POS II) - Stanford University Faculty & Staff (SUFS) High Deductible Health Plan POS II (HDHP POS II) - Traditional Choice **Anthem Blue Cross of California (19 plans)** ### Anthem Blue Cross of California - Advantage HMO - Anthem Blue Cross HMO Saver Small Group Plan - Anthem Blue Cross HMO, also sometimes known as California Care or Rural Cal Care (includes CalPERS Traditional HMO) - Anthem Blue Cross HMO/POS (California Care Plus) - Anthem Blue Cross Individual and Family EPO Bronze/Silver/Gold/Platinum-Covered California (Pathway - EPO) - Anthem Blue Cross Small Group HMO (also sometimes known as California Care) - Anthem Bronze, Silver, Gold, Platinum PPO (Prudent Buyer Plan) - Anthem High Performance Narrow Network - Anthem Medicare Preferred PPO Medicare Advantage Plans for Group Retirees - Behavioral Health Program - BlueCard - CareAdvocate PPO - Direct Access - Federal Employee Program (FEP) - PPO - GeoBlue - Indemnity - Managed Care Services - My Choice PPO - SmartSense **Blue Shield of California (24 plans)** ### Blue Shield of California - Active Choice PPO - Administrative Services Only (ASO) - Self-Funded PPO - Blue Shield $0 Cost Share PPO (IFP) - Blue Shield Access+ HMO CalPERS Limited Network - Blue Shield Access+ HMO Plan - Blue Shield Added Advantage POS (Point-Of-Service) Plan**Note:** - PPO Benefit Level - Blue Shield Bronze PPO (IFP & Small Group) - Blue Shield CalPERS EPO - Blue Shield CalPERS Medicare (PPO) Employer Group Medicare Advantage - Blue Shield Gold PPO (IFP & Small Group) - Blue Shield Life and Health Insurance Company - Blue Shield Medicare (PPO) Employer Group Medicare Advantage - Blue Shield Minimum Coverage PPO (IFP) - Blue Shield of California PPO/EPO (aka Full Network PPO/EPO) - Blue Shield Platinum PPO (IFP & Small Group) - Blue Shield Silver PPO (IFP & Small Group) - BlueCard Plan - Federal Employee Program - PPO**Note:** - FEP accesses Anthem Blue Cross for Hospital Providers - Indemnity - PERS Platinum PPO - Shared Advantage - PPO/EPO and Shared Advantage Plus - PPO/EPO (Full Network PPO) - UC Care PPO - University of California HealthSavings+ - Vital Shield 900 Plans **Cigna - Currently in 2027 Contract Negotiations (14 plans)** ### Cigna - Currently in 2027 Contract Negotiations - Allegiance Benefit Plan Management - Cigna Global Health Advantage (PPO) - Cigna International Plan - Cigna+Oscar Joint Venture Open Access Plus - Commercial HMO/POS - EPO Plan - Indemnity Plan - Joint Administration/ Payer Solutions - Network HMO/POS - Network Open Access (HMO) - Network Open Access (PPO) - Open Access Plus (PPO) - Point of Service Open Access (POS) - Preferred Provider Organization (PPO) Coverage can vary, so we suggest confirming with your health plan and provider’s office before your visit. ## Care locations [Castro Valley Care Center](https://www.sutterhealth.org/find-location/facility/castro-valley-care-center-1043246870) 20101 Lake Chabot Road Floor 3 Castro Valley, CA 94546 [Get directions](https://www.google.com/maps/dir/?api=1&destination=20101+Lake+Chabot+Road+Castro+Valley%2C+CA+94546+US) [510-886-3400](tel:+15108863400) 510-506-7729 Sunday Closed Monday 8:30 am - 5:00 pm Tuesday 8:30 am - 5:00 pm Wednesday 8:30 am - 5:00 pm Thursday 8:30 am - 5:00 pm Friday 8:30 am - 5:00 pm Saturday Closed **View additional hours** Sunday Closed Monday 8:30 am - 5:00 pm Tuesday 8:30 am - 5:00 pm Wednesday 8:30 am - 5:00 pm Thursday 8:30 am - 5:00 pm Friday 8:30 am - 5:00 pm Saturday Closed ## Areas of expertise Explore the services and treatments this provider may offer. **Clinical expertise** ### Procedures - Annual physical exam ### Reasons for visit - Annual checkup ## Related services offered by Sutter - [Internal medicine](https://www.sutterhealth.org/services/internal-medicine) ## Similar providers nearby [View all](https://www.sutterhealth.org/find-provider-results?facets=%5B%7B%22i%22%3A%22c_providerSpecialties.specialty.name%22%2C%22v%22%3A%5B%22Internal+Medicine%22%5D%7D%5D&limit=10&staticFilters=%5B%7B%22displayName%22%3A%22Sutter+Health+provider%22%2C%22selected%22%3Atrue%2C%22filter%22%3A%7B%22kind%22%3A%22fieldValue%22%2C%22fieldId%22%3A%22c_providerIsSutterHealth%22%2C%22matcher%22%3A%22%24eq%22%2C%22value%22%3Atrue%7D%7D%2C%7B%22displayName%22%3A%22Near%3A+Castro+Valley+Care+Center%22%2C%22selected%22%3Atrue%2C%22filter%22%3A%7B%22kind%22%3A%22fieldValue%22%2C%22fieldId%22%3A%22c_offices.officeOrFacility.builtin.location%22%2C%22matcher%22%3A%22%24near%22%2C%22value%22%3A%7B%22lat%22%3A37.69826150202879%2C%22lng%22%3A-122.09030598834323%2C%22radius%22%3A16093%7D%7D%7D%5D&verticalKey=healthcare_professionals) - 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Oboh](https://dyn.mktgcdn.com/p/Kj99oJODvLokOh8L5oTSuNiqXf4FnqBOXoOHV5n4gW0/fit=crop,gravity=auto,dpr=2,width=230,height=230) ### [Oselenonome O. Oboh, M.D.](https://www.sutterhealth.org/find-provider/dr-oselenonome-o-oboh-2095482563) 20101 Lake Chabot Road Castro Valley, CA 94546 [Get directions](https://www.google.com/maps/dir/?api=1&destination=20101+Lake+Chabot+Road+Castro+Valley%2C+CA+94546+US) \+ 3 locations [510-247-6300](tel:+15102476300) #### Internal Medicine - Accepting new patients - ![David K. Wang](https://dyn.mktgcdn.com/p/J4S4nHxHdmzCFPOL-zg1L3XhWGZeekPbhppXAzjMo4k/fit=crop,gravity=auto,dpr=2,width=230,height=230) ### [David K. Wang, M.D.](https://www.sutterhealth.org/find-provider/dr-david-k-wang-1046245984) (365) 460 Market Place Building H San Ramon, CA 94583 [Get directions](https://www.google.com/maps/dir/?api=1&destination=460+Market+Place+San+Ramon%2C+CA+94583+US) \+ 1 location [925-803-4780](tel:+19258034780) #### Internal Medicine - Accepting new patients - ![Kanwalpreet K. Hundal](https://dyn.mktgcdn.com/p/23djeAjyFlgOHoT4VkZmw4qunqp2Vt1zw6Evy2baG7o/fit=crop,gravity=auto,dpr=2,width=230,height=230) ### [Kanwalpreet K. Hundal, M.D.](https://www.sutterhealth.org/find-provider/dr-kanwalpreet-k-hundal-1046250081) (213) 460 Market Place Building H San Ramon, CA 94583 [Get directions](https://www.google.com/maps/dir/?api=1&destination=460+Market+Place+San+Ramon%2C+CA+94583+US) \+ 1 location [925-803-4780](tel:+19258034780) #### Internal Medicine - Accepting new patients - ![Tannaz Shooshtarian](https://dyn.mktgcdn.com/p/dtdYNLjEPuJVq68weKsf7T8GL9vG_t2EUDWfwX_YxLc/fit=crop,gravity=auto,dpr=2,width=230,height=230) ### [Tannaz Shooshtarian, PA-C](https://www.sutterhealth.org/find-provider/tannaz-shooshtarian-1078057608) 460 Market Place Building H San Ramon, CA 94583 [Get directions](https://www.google.com/maps/dir/?api=1&destination=460+Market+Place+San+Ramon%2C+CA+94583+US) \+ 1 location [925-803-4780](tel:+19258034780) #### Internal Medicine - New patients, please call for availability - [![Provider placeholder image](https://www.sutterhealth.org/static/images/fallback-provider.png) View all](https://www.sutterhealth.org/find-provider-results?facets=%5B%7B%22i%22%3A%22c_providerSpecialties.specialty.name%22%2C%22v%22%3A%5B%22Internal+Medicine%22%5D%7D%5D&limit=10&staticFilters=%5B%7B%22displayName%22%3A%22Sutter+Health+provider%22%2C%22selected%22%3Atrue%2C%22filter%22%3A%7B%22kind%22%3A%22fieldValue%22%2C%22fieldId%22%3A%22c_providerIsSutterHealth%22%2C%22matcher%22%3A%22%24eq%22%2C%22value%22%3Atrue%7D%7D%2C%7B%22displayName%22%3A%22Near%3A+Castro+Valley+Care+Center%22%2C%22selected%22%3Atrue%2C%22filter%22%3A%7B%22kind%22%3A%22fieldValue%22%2C%22fieldId%22%3A%22c_offices.officeOrFacility.builtin.location%22%2C%22matcher%22%3A%22%24near%22%2C%22value%22%3A%7B%22lat%22%3A37.69826150202879%2C%22lng%22%3A-122.09030598834323%2C%22radius%22%3A16093%7D%7D%7D%5D&verticalKey=healthcare_professionals) [View all](https://www.sutterhealth.org/find-provider-results?facets=%5B%7B%22i%22%3A%22c_providerSpecialties.specialty.name%22%2C%22v%22%3A%5B%22Internal+Medicine%22%5D%7D%5D&limit=10&staticFilters=%5B%7B%22displayName%22%3A%22Sutter+Health+provider%22%2C%22selected%22%3Atrue%2C%22filter%22%3A%7B%22kind%22%3A%22fieldValue%22%2C%22fieldId%22%3A%22c_providerIsSutterHealth%22%2C%22matcher%22%3A%22%24eq%22%2C%22value%22%3Atrue%7D%7D%2C%7B%22displayName%22%3A%22Near%3A+Castro+Valley+Care+Center%22%2C%22selected%22%3Atrue%2C%22filter%22%3A%7B%22kind%22%3A%22fieldValue%22%2C%22fieldId%22%3A%22c_offices.officeOrFacility.builtin.location%22%2C%22matcher%22%3A%22%24near%22%2C%22value%22%3A%7B%22lat%22%3A37.69826150202879%2C%22lng%22%3A-122.09030598834323%2C%22radius%22%3A16093%7D%7D%7D%5D&verticalKey=healthcare_professionals) ### Disclaimer _This provider directory is provided as a convenience to you. It is not intended as a recommendation, referral or endorsement of any particular provider. Physicians are not employees or agents of Sutter Health or its subsidiaries. The information is submitted by each doctor and we make no guarantee or warranty as to the accuracy of the information. You should verify the accuracy of the information directly with the provider's office._ _All doctors on this site are in the Sutter system. Doctors meeting your search criteria are presented in order of relevance based on search criteria, based on those providers with appointment availability._ [_Find out more about star ratings_](https://www.sutterhealth.org/star-ratings)_._ ```json {"@context":"https://schema.org","@type":"MedicalOrganization","name":"Sutter Health","@id":"https://www.sutterhealth.org/#medicalorganization","url":"https://www.sutterhealth.org","logo":"https://www.sutterhealth.org/static/images/sutter-health-logo.svg","address":{"@type":"PostalAddress","streetAddress":"2200 River Plaza Drive","addressLocality":"Sacramento","addressRegion":"CA","postalCode":"95833","addressCountry":"US"},"areaServed":{"@type":"AdministrativeArea","name":"California"},"sameAs":["https://www.facebook.com/SutterHealth","https://www.instagram.com/sutterhealth/","https://x.com/SutterHealth","https://www.youtube.com/sutterhealth","https://www.linkedin.com/company/sutter-health","https://en.wikipedia.org/wiki/Sutter_Health"]} ``` ```json {"@context":"https://schema.org","@type":"BreadcrumbList","@id":"https://www.sutterhealth.org/find-provider/dr-diana-h-hess-1089981800#breadcrumblist","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://www.sutterhealth.org/"},{"@type":"ListItem","position":2,"name":"Find a provider","item":"https://www.sutterhealth.org/find-provider"},{"@type":"ListItem","position":3,"name":"Diana H. 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