|  Dr. Kenneth S Thaler, MD Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 14642 Newport Ave, Ste 270, Tustin, CA 92780 Phone: 714-669-4449 | 
|  Dr. Chin-wei Huang, MD Internal Medicine - Sleep Medicine Medicare: Accepting Medicare Assignments Practice Location: 1101 Bryan Ave Ste E, Tustin, CA 92780 Phone: 714-922-0220 Fax: 714-922-0659 | 
|  Roger Kornu, M.D. Internal Medicine - Rheumatology Medicare: Accepting Medicare Assignments Practice Location: 2552 Walnut Ave Ste 200, Tustin, CA 92780 Phone: 714-406-4461 Fax: 714-669-9790 | 
|  Amish Kishor Shah, D.O., M.P,H, Internal Medicine - Geriatric Medicine Medicare: Medicare Enrolled Practice Location: 17542 17th St, Suite 320, Tustin, CA 92780 Phone: 714-734-5500 | 
|  Bernard Leroy Bennett, MD Internal Medicine Medicare: Medicare Enrolled Practice Location: 661 W 1st St Ste G, Tustin, CA 92780 Phone: 714-665-9890 Fax: 714-665-9891 | 
|  Dr. Almoatazbellah Magdeldin Idriss, MD Internal Medicine - Endocrinology, Diabetes & Metabolism Medicare: Accepting Medicare Assignments Practice Location: 1451 Irvine Blvd, Tustin, CA 92780 Phone: 714-838-8408 Fax: 714-838-0025 | 
|  Guy P. Randazzo, M.D. Internal Medicine - Pulmonary Disease Medicare: Accepting Medicare Assignments Practice Location: 13522 Newport Ave Ste 102, Tustin, CA 92780 Phone: 714-573-8200 Fax: 714-573-9401 | 
|  Lisa Beth Abdishoo, MD Internal Medicine Medicare: Medicare Enrolled Practice Location: 1 Hope Dr, Tustin, CA 92782 Phone: 714-247-0300 Fax: 714-259-1598 | 
|  Dr. Khaldoun A Debian, M.D. Internal Medicine - Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 17400 Irvine Blvd Ste F, Tustin, CA 92780 Phone: 714-937-9400 Fax: 714-937-9404 | 
|  Dr. Quyen Dao, M.D. Internal Medicine - Bariatric Medicine Medicare: Accepting Medicare Assignments Practice Location: 17542 17th St, Suite 410, Tustin, CA 92780 Phone: 714-835-9550 | 
|  Dr. Dinesh Kumar, MD Internal Medicine - Interventional Cardiology Medicare: Accepting Medicare Assignments Practice Location: 1101 Bryan Ave Ste E, Tustin, CA 92780 Phone: 714-617-5163 Fax: 714-617-5786 | 
|  Julia Collins Motherway, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 17400 Irvine Blvd, Suite F, Tustin, CA 92780 Phone: 714-838-5610 | 
|  Dr. Jean Louis Selam,  Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 2492 Walnut Ave, Suite # 130, Tustin, CA 92780 Phone: 714-734-7944 Fax: 714-734-7945 |