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Alternative Access Standards for Specialty Providers


Welcome to Contra Costa Health Plan's Alternative Access Page


The time and distance standard states that a Primary Care Provider (PCP) must be within 10 miles and 30 minutes of a member’s address and that a specialty provider must be within 15 miles and 30 minutes of a member’s address. Per Welfare and Institutions Code Section 14197.04(c), Contra Costa Health Plan (CCHP) requested Alternative Access for these zip codes to the nearest out of network provider. CCHP is making every effort to contract with a provider within the alternative access requested.

If your zip code and provider type are listed below, Contra Costa Health Plan (CCHP) must help you find an appointment. You have a right to call Member Services department at 1-877-661-6230 to get help with finding an appointment to a closer specialist. CCHP will then issue a single patient agreement for medically necessary services. If CCHP cannot find you an appointment with a closer specialist and you need assistance with transportation, CCHP will arrange transportation to see the specialist.


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Zip Code City/Town Provider Type Population Served Name of Nearest Network Provider Address of Nearest Network Provider Driving Time to the Nearest Network Provider (minutes) Distance to the Nearest Network Provider (miles) Approved Max Minutes AAS (minutes) Approved Max Miles AAS (miles)
94506 Danville Nephrology Adult Sarah Woon, MD 2637 Shadelands Dr, Walnut Creek CA 94598 20.5 15.4 30 16.0
94506 Danville Nephrology Pediatric Sarah Woon, MD 2637 Shadelands Dr, Walnut Creek CA 94598 20.8 15.6 30 16.0
94505 Discovery Bay Neurology Adult Dr. David Chow 100 Cortona Way, Brentwood CA 94513 17.8 16.4 30 17.0
94505 Discovery Bay Neurology Pediatric Dr. Kenneth Kim 4530 Balfour Rd, Brentwood CA 94513 15.7 14.4 30 15.0
94506 Danville Pulmonology Adult Gerald Del Rio, MD 2220 Gladstone Dr. Ste. 3, Pittsburg CA 94565 21.2 15.9 30 16.0
94505 Discovery Bay Hospital Adult/Pediatric Sutter Delta Medical Center 3902 Lone Tree Way Antioch CA 94509 18.6 15.1 30 16.0
94505 Discovery Bay Cardiology/ Interventional Cardiology Adult Gilbert Chang, MD 350 John Muir Pkwy #285, Brentwood CA 94513 17.3 15.9 30 15.9
94505 Discovery Bay Cardiology/ Interventional Cardiology Pediatric Gilbert Chang, MD 350 John Muir Pkwy #285, Brentwood CA 94513 17.3 15.9 30 15.9
94505 Discovery Bay Dermatology Adult Noel Chiu, MD 3436 Hillcrest Ave Ste 150, Antioch CA 94531 19.0 22.8 30 22.8
94505 Discovery Bay Dermatology Pediatric Noel Chiu, MD 3436 Hillcrest Ave Ste 150, Antioch CA 94531 22.8 19.0 30 19.0
94505 Discovery Bay Endocrinology Adult Jianyu Xu, MD 2400 Balfour Rd Ste 120, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay Endocrinology Pediatric Jianyu Xu, MD 2400 Balfour Rd Ste 120, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay ENT/Otolaryngology Adult Rex Moulton-Barrett, MD 1280 Central Blvd, Ste J5, Brentwood CA 94513 16.6 15.3 30 15.3
94505 Discovery Bay ENT/Otolaryngology Pediatric Rex Moulton-Barrett, MD 1280 Central Blvd, Ste J5, Brentwood CA 94513 16.6 15.3 30 15.3
94505 Discovery Bay Gastroenterology Adult Mehra Hosseini, MD 100 Cortona Way Ste 160, Brentwood CA 94513 18.0 16.5 30 16.5
94505 Discovery Bay Gastroenterology Pediatric Saurabh Patel, MD 2400 Balfour Rd, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay General Surgery Adult Gregory Rhodes, MD 2400 Balfour Rd Ste 300, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay General Surgery Pediatric Gregory Rhodes, MD 2400 Balfour Rd Ste 300, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay Hematology Adult Bimal Patel, MD 2401 Balfour Rd Ste 230, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay Hematology Pediatric Bimal Patel, MD 2401 Balfour Rd Ste 230, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay HIV/AIDS Adult Shiv Sudhakar, MD 2400 Balfour Rd Ste 120, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay HIV/AIDS Pediatric Shiv Sudhakar, MD 2400 Balfour Rd Ste 120, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay Nephrology Adult Mario Curzi, MD 2370 Country Hills Dr Ste 101, Antioch CA 94509 25.5 18.1 30 18.1
94505 Discovery Bay Nephrology Pediatric Mario Curzi, MD 2370 Country Hills Dr Ste 101, Antioch CA 94509 25.5 18.1 30 18.1
94505 Discovery Bay OB/GYN Adult/Pediatric Manita Nat, MD 2400 Balfour Rd, Ste 230, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay Oncology Adult Bimal Patel, MD 2401 Balfour Rd Ste 230, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay Oncology Pediatric Bimal Patel, MD 2401 Balfour Rd Ste 230, Brentwood CA 94513 17.7 16.3 30 16.3
94505 Discovery Bay Ophthalmology Adult Ivan Hwang, MD 1181 Central Blvd Ste F, Brentwood CA 94513 16.8 15.4 30 15.4
94505 Discovery Bay Ophthalmology Pediatric Ivan Hwang, MD 1181 Central Blvd Ste F, Brentwood CA 94513 16.8 15.4 30 15.4
94505 Discovery Bay Orthopedic Surgery Adult Schilling, John, MD 350 John Muir Parkway, Ste 100, Brentwood CA 94513 17.3 15.9 30 15.9
94505 Discovery Bay Orthopedic Surgery Pediatric Wendy Wong, MD 350 John Muir Parkway, Ste 100, Brentwood CA 94513 17.3 15.9 30 15.9
94505 Discovery Bay PCP Adult Su, Gigi Y, MD 171 Sand Creek Rd Ste A, Brentwood CA 94513 13.3 12.2 30 12.2
94505 Discovery Bay PCP Pediatric Yang, Lucia Y, MD 1200 Central Blvd Ste A, Brentwood CA 94513 12.6 11.6 30 11.6
94505 Discovery Bay Pharmacy Adult/Pediatric Walgreens 6871 4520 Balfour Rd, Brentwood CA 94513 11.5 10.6 30 10.6
94505 Discovery Bay Physical Medicine Adult Michael Chang, DO 350 John Muir Parkway, Ste 100, Brentwood CA 94513 17.3 15.9 30 15.9
94505 Discovery Bay Physical Medicine Pediatric Michael Chang, DO 350 John Muir Parkway, Ste 100, Brentwood CA 94513 17.3 15.9 30 15.9
94505 Discovery Bay Psychiatry Adult Ronald Leon, MD 3432 Hillcrest Ave Ste 175, Antioch CA 94531 18.1 15.1 30 15.1
94505 Discovery Bay Psychiatry Pediatric Ronald Leon, MD 3432 Hillcrest Ave Ste 175, Antioch CA 94531 18.2 15.2 30 15.2
94506 Danville Pulmonology Pediatric Kristina Kramer, MD 2637 Shadelands Dr, Walnut Creek CA 94598 19.5 15.1 30 15.1
94514 Byron Dermatology Adult Noel Chiu, MD 3436 Hillcrest Ave Ste 150, Antioch CA 94531 21.1 17.6 30 17.6
94514 Byron Dermatology Pediatric Noel Chiu, MD 3436 Hillcrest Ave Ste 150, Antioch CA 94531 21.1 17.6 30 17.6
94514 Byron Nephrology Adult Mario Curzi, MD 2370 Country Hills Dr Ste 101, Antioch CA 94509 23.7 16.8 30 16.8
94514 Byron Nephrology Pediatric Mario Curzi, MD 2370 Country Hills Dr Ste 101, Antioch CA 94509 23.7 16.8 30 16.8
94514 Byron PCP Adult Holmes, Michelle M, MD 171 Sand Creek Rd Ste A, Brentwood CA 94513 15.0 13.8 30 13.8
94514 Byron PCP Pediatric Yang, Lucia Y, MD 1200 Central Blvd Ste A, Brentwood CA 94513 15.7 14.4 30 14.4
94514 Byron Pharmacy Adult/Pediatric Walgreens 6870 4519 Balfour Rd, Brentwood CA 94513 12.5 11.5 30 11.5
94514 Byron Psychiatry Pediatric Ronald Leon, MD 3432 Hillcrest Ave Ste 175, Antioch CA 94531 18.1 15.1 30 15.1
94517 Clayton PCP Pediatric Yang, Lucia Y, MD 4049 Lone Tree Way Ste G, Antioch CA 94531 11.8 10.5 30 10.5
94551 Livermore PCP Adult Kassels, Michael D, DO 100 Cortona Way Ste 160, Brentwood CA 94513 11.7 10.8 30 10.8
94551 Livermore PCP Pediatric Sachdeva, Suresh K, MD 1081 Market Pl Ste 800 12.4 11.0 30 11.0