Important Updates

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Scam Alert: Beware of scam calls pretending to be from Epic Care or your insurance. We'll never ask for personal or financial info by phone unexpectedly. If in doubt, hang up and call us directly at (925) 255-1066. Report suspicious calls to the FTC or local police.

Attention patients, effective November 1, 2023, Epic Care will enforce a cancellation & no-show policy. For more information, please talk to your local office.

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Scam Alert: Beware of scam calls pretending to be from Epic Care or your insurance. We'll never ask for personal or financial info by phone unexpectedly. If in doubt, hang up and call us directly at (925) 255-1066. Report suspicious calls to the FTC or local police.

Attention patients, effective November 1, 2023, Epic Care will enforce a cancellation & no-show policy. For more information, please talk to your local office.

Request an Appointment

Castro Valley

Welcome to Castro Valley

4.9 out of 5

(1,981 ratings, 923 comments)

20400 Lake Chabot Road, Suite 102, Castro Valley, CA 94546

Telephone: (510) 247-9227

Fax: (510) 247-9241

Office Hours: Monday - Friday 8:00 AM - 5:00 PM

Services Offered

General Surgery
Infusion Services
Internal Medicine
Medical Oncology
Radiation Oncology
Laboratory Services

Epic Care Providers

Family & Internal Medicine

Deepak Dhawan, MD

General Surgery

Sara J. Reinganum, MD, FACS

Low Dose Radiation Therapy

Medical Oncology & Hematology

Neha DeSouza, MD

Shelly Gupta, MD

Qaiser Niaz, MD

Srikanth Reddy, MD

Radiation Oncology

Verified Patient Reviews

The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy.

5

897 comments

4

25 comments

3

1 comment

2

0 comments

1

0 comments

4.9 out of 5 (1,981 ratings, 923 comments)

Jun 6, 2025

Shelly Gupta, MD

Excellent.

Jun 5, 2025

Deepak Dhawan, MD

Very personable and evidenced caring and competence

Jun 3, 2025

Neha De Souza, MD

Excellent

Jun 2, 2025

Deepak Dhawan, MD

Dr. Dhawan was very professional, knowledgeable and caring. I also complimented him on the professionalism of his staff.

May 30, 2025

Qaiser Niaz, MD

Very professional

Verified Ratings and Reviews Powered by Ratings.MD

Schedule Your Visit Today

If you have questions about our providers or you’d like to schedule an appointment, contact us today! You can also reach out to us on our contact page. Our team of specialists are committed to using the latest breakthroughs and scientific innovations to deliver comprehensive treatment tailored to your needs.

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We’ve been ducked!

Our Epic Care team

We’ve been ducked! 🦆💜

Our Epic Care team was surprised with a purple duck from the ACS Relay for Life of the Delta while at Market Saturdaze at Prewett Family Park Hillside in Antioch today and we loved it! These cheerful ducks are spreading smiles and raising cancer awareness, reminding us that hope can show up in the most unexpected places.

We can’t wait to see more of these purple ducks at the Relay for Life of the Delta on Saturday, July 12. Join us as we walk, remember, and celebrate!

👉 Learn more at RelayForLife.org
📞 Need support or info? Call the ACS 24/7 helpline at 1-800-227-2345

#RelayForLife #RelayForLifeDelta #EpicCare #CancerAwareness #YouveBeenDucked #HopeLivesHere #AntiochCA #CommunitySupport #PurpleDuckPower #MakingStrides #TogetherWeFight #ACS #EpicCareCares #SpreadHope

June is National Cancer Survivorship Month! A time

June is National Cancer Survivorship Month! A time to celebrate life beyond cancer and also highlight the important role of follow-up care in your journey.

Here’s why follow-up care matters.

#CancerSurvivor #SurvivorshipCare #CancerJourney #FollowUpCare #LifeAfterCancer #CancerSupport #NationalCancerSurvivorsMonth #OncologyCare #EpicCare

Happy Pride Month!

Happy Pride Month! ❤️🧡💛💚💙💜

Epic Care is proud to provide inclusive healthcare for all, including the LGBTQ+ community. Your health and well-being matter to us, and we’re committed to creating a space where you always feel welcome, supported, and respected.

#PrideMonth #InclusiveHealthcare #LGBTQ+ #LGBTQ #HealthcareForAll #PatientCare #CancerCare #CompassionateCare #EpicCare #Pride2025

As we continue to recognize Skin Cancer Awareness

As we continue to recognize Skin Cancer Awareness Month, we’re shining a light on the power of early detection.

Be aware of changes to your skin and report signs and symptoms to your doctor. Here are a few to watch out for.

#SkinCancerAwareness #SkinCancerAwarenessMonth #EarlyDetectionSavesLives #SkinCheck #EpicCare

May is Women’s Health Month! A powerful reminde

May is Women’s Health Month! A powerful reminder to prioritize your well-being.

Understanding your risk factors for conditions like cancer is an important step toward prevention and early detection.

Here are some common cancer risk factors that are often found in women. Talk to your physician about how to stay proactive and protect your health. 💪💗

#WomensHealthMonth #CancerAwareness #WomensWellness #PreventCancer #KnowYourRisk #HealthEquity #EarlyDetectionSavesLives #WomensHealth2025 #StrongWomenStrongHealth #SelfCareIsHealthcare #HealthMatters #EmpowerHerHealth #RoutineCheckups #HealthEducation #HerHealthFirst

We were proud to once again sponsor and participat

We were proud to once again sponsor and participate in this year’s @cancersupportsf Hope Walk! Thanks to the amazing efforts of our community and team we helped the event raise more than $283,000 to support important programs for cancer patients, their caregivers, and families.

If you or a loved one has recently been diagnosed with cancer, know that Epic Care and the Cancer Support Community are here to help. At Epic Care, we provide compassionate, high-value, personalized cancer care, while CSC offers supportive care at no cost to patients and their families. Contact us today to schedule an appointment or connect with our friends at CSC. For more information about the Cancer Support Community, visit cancersupport.net

#WhyIHopeWalk #CancerSupportCommunity #EpicCare #CancerPatients #BayArea #EpicCare

We had a wheelie great time at the Battle of the

We had a wheelie great time at the Battle of the East Bay Car Show at Lumpy’s Diner in Antioch on Saturday! We’re proud to have sponsored this amazing event hosted by Midnighters Nor Cal. Together, we raised over $2,700 for the ACS Relay for Life of the Delta! 💜 Huge thanks to everyone who rolled through and helped drive support for a meaningful cause.

Don’t forget to join us on Saturday, July 12, 2025, at 10 AM at Dallas Ranch Middle School in Antioch for Relay For Life of the Delta!

#BattleOfTheEastBay #RelayForLife #MidnightersNorCal #LumpysDiner #FueledByCommunity #EastBayEvents #AntiochCA #EpicCare

Today, we honor the many expressions of motherhood

Today, we honor the many expressions of motherhood, the caregivers, nurturers, mentors, and those who hold a mother’s love in their hearts. Whether you’re celebrating, remembering, or navigating this day with mixed emotions, we see you.

Mother’s Day is a time to reflect on the love, strength, and care that shape our lives in countless ways. However you mark this day, may it bring moments of peace, gratitude, and connection. Happy Mother’s Day!

#MothersDay #HappyMothersDay #EpicCare #Mom #Motherhood

Today is World Ovarian Cancer Day. Ovarian cancer

Today is World Ovarian Cancer Day. Ovarian cancer is most commonly diagnosed in older women, with approximately 50% of cases occurring in women 63 and older. Here are 5 facts everyone should know about ovarian cancer!

#WOCD2025 #WorldOvarianCancerDay #NoWomanLeftBehind #OvarianCancer #EpicCare

Today, our Epic Care HR team had the pleasure of a

Today, our Epic Care HR team had the pleasure of attending the Contra Costa Medical Career College Job Fair in Antioch! It was a fantastic opportunity to connect with aspiring healthcare professionals and share what makes Epic Care a great place to work.

We’re always on the lookout for compassionate, driven individuals who want to make a meaningful impact in the lives of others.

Interested in joining our team? Explore our current career opportunities by clicking the 🔗 in our bio.

#EpicCare #HealthcareCareers #NowHiring #AntiochCA #JoinOurTeam #ContraCostaMedicalCareerCollege

Proud To Be Sponsors Of

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