Meet The Cardiology Team
Cardiologists
- Surrender Raina, MD
- David Lim, MD
- Rajiv Punjya, MD
- Richard Waters, MD
- Sanjeev Vaishampayan, MD
- Ajay Ramanakumar, MD
- Ali Mirhosseini, MD
- Venakata Emani, MD
- Nadia Shaikh, MD
Surrender Raina, MD
Dr. Raina joined Stockton Cardiology in 1977. Dr. Raina received his undergraduate degree from Government Medical College (M.B.B.S.) Kashmir, India. His postgraduate education and training included internship and residency in Internal Medicine, Mount Sinai Medical Center, New York, Elmhurst Hospital. This was followed by his Fellowship in Cardiology at University of Pennsylvania for 2 years.
Dr. Raina has been in cardiology (invasive and non-invasive) practice for over 30 years. He has extensive experience in complex cardiovascular intervention (heart), complex peripheral (leg) interventions, and carotid (neck artery) stent procedures.
Dr. Raina was first to start the angioplasty program at St. Joseph’s Medical Center in 1984.
Certification
1975 – Certification in Internal Medicine by the American Board of Internal Medicine
Board Eligible in Cardiology
Hospital Affiliation
St. Joseph’s Medical Center – Stockton, CA
Dameron Hospital – Stockton, CA
David Lim, MD, FACC
Dr. Lim received his undergraduate degree from University of California, Berkley and his medical degree from Albert Einstein College of Medicine, New York. He completed his cardiology fellowship at the University of California, San Francisco. Dr. Lim is a native Stocktonian and returned to Stockton to join Stockton Cardiology Medical Group in 1993.
Dr. Lim is currently a member of San Joaquin Community Board.
Certifications
2007 – CVCTA Education – ACC level II Coronary CTA Certification
2003 – Recertification in Cardiovascular Disease by the American Board of Internal Medicine
1993 – Certification in Cardiovascular Disease by the American Board of Internal Medicine
1989 – Certification in Internal Medicine by the American Board of Internal Medicine
Hospital Affiliations
St. Joseph’s Medical Center – Stockton, CA
Dameron Hospital – Stockton, CA
Mark Twain Hospital, San Andreas, CA
Fellowship
American College of Cardiology
Professional Society Affiliations
Fellow, American College of Cardiology
Personal
Dr. Lim is married and he and his wife, Charson have two children.
Rajiv Punjya, MD, FACC
Dr. Punjya joined Stockton Cardiology Medical Group in 1996. His office location is Tracy and Manteca. Dr. Punjya received his M.D. degree from Baroda Medical College, Maharaja Sayajirao University, Baroda, India. He completed his internship and residency at Wayne State University of Medicine, Detroit, Michigan. His Interventional and Cardiology Fellowship was completed at Harper Hospital, Wayne State University School of Medicine, in Detroit, Michigan.
Certifications
2007 – American Society of Nuclear Cardiology
2006 – Cardiovascular Diseases, American Board of Internal Medicine
2006 – Cardiovascular CT Mini – Fellowship: CT training and certification
2005 – Certification in Cardiovascular Disease by the American Board of Internal medicine
1998 – Certification of Echocardiography
1992 – Certification in Internal Medicine by the American Board of Internal Medicine
1988 – Educational Commission for Foreign Medical Graduates
1988 – FLEX Examination
Hospital Affiliations
Sutter Tracy Community Hospital
Doctor’s Hospital of Manteca
St. Joseph’s Medical Center, Stockton
Fellowship
American College of Cardiology
Positions
Chief of Staff – Sutter Tracy Hospital
Chief of Medicine – Sutter Tracy
Richard Waters, MD, FACC
Dr. Waters is a native of Stockton. He joined Stockton Cardiology Medical Group in 2005. He is a graduate of Stanford University and Vanderbilt University School of Medicine. He subsequently completed his internship and residency in internal medicine at Johns Hopkins Hospital. Dr. Waters then completed his Fellowship, Interventional Cardiology at Duke University Medical Center.
Certifications
2006 – Cardiovascular CT Level II, University of California Irvine School of Medicine
2005 – Interventional Cardiology, American Board of Internal Medicine
2001 – Internal Medicine, American Board of Internal Medicine
2004 – Cardiovascular Disease, American Board of Cardiovascular Medicine
Hospital Affiliations
St. Joseph’s Medical Center, Stockton, CA
Dameron Hospital, Stockton, CA
Mark Twain Hospital, San Andreas, CA
Fellowship
American College of Cardiology
Personal
Married to Erica, a primary care pediatrician. Two children: Ella and Reed.
Proficient in Spanish, including extensive travel in South America.
Interest in international medicine.
Hobbies include: running, swimming, water polo, skiing, and backpacking.
Sanjeev Vaishampayan, MD, FACC
Dr. Vaishampayan joined Stockton Cardiology Medical Group in 2010. He received his undergraduate degree and medical education, respectively, from Kalamazoo College and Wayne State University School of Medicine. Dr. Vaishampayan has been practicing clinical cardiology for over 15 years. His practice involves echocardiography, trans-esophageal echocardiography, nuclear cardiology, cardiac catheterization, and pacemaker implantation. He relocated to California in July 2010 from his previous practice in Michigan, joining Stockton cardiology Medical Group.
Certifications
2010 – Fluoroscopy – California Department of Public Health
2009 – Certified in Nuclear Cardiology
2006 – Recertified in Cardiology
2008 – Re-Certification Board of Echocardiography
2001 – Certification Board of Nuclear Cardiology
1998 – Certified Board of Echocardiography
1997 – Certified – American Board of Cardiology
1992 – Certified – American Board of Internal Medicine
Hospital Affiliation
St. Joseph’s Medical Center – Stockton, CA
Sutter Tracy Hospital – Tracy, CA
Doctors Hospital – Manteca, CA
Fellowship
American College of Cardiology
Personal
Married to Julie, a CDC physician. They have 4 children. Hobbies include tennis, golf, and cooking.
Ajay Toppur Ramanakumar, MD, MPH
Dr. Ramanakumar has joined Stockton Cardiology Medical Group and is on the medical staff at St. Joseph’s Medical Center.
He is committed to providing compassionate, evidence based cardiovascular care in a patient centered manner. He works closely with his patients and their family and actively involves them in the decision making process.
Certifications
Board Certified in Cardiovascular Disease
Board Certified in Internal Medicine
Diplomate, Special Competence in Adult Echocardiography (ASCeXAM®)
Diplomate, Certification Board of Nuclear Cardiology
Registered Physician in Vascular Interpretation, ARDMS
Hospital Affiliation
St. Joseph’s Medical Center – Stockton, CA
Dameron Hospital – Stockton, CA
Fellowship
Saint Vincent Hospital, University of Massachusetts, Worcester, MA
Interventional Cardiology Fellow
Cardiovascular Medicine Fellow
Residency
Abington Memorial Hospital, Abington, PA
Chief Resident, Dept. of Internal Medicine
Categorical Resident, Dept. of Internal Medicine
Medical Education
American College of Cardiology
Society for Cardiovascular Angiography and Interventions
Special Clinical Interests
Preventive Cardiology, CAD, Heart Failure
Ali Mirhosseini, MD
Dr. Mirhosseini joined Stockton Cardiology Medical group in 2019. He completed medical school at Shiraz University of Medical Sciences in Iran and then finished his residency and fellowship at Mount Sinai Hospital and Rosalind Franklin University in Chicago. He worked as a general cardiologist in Chicago for one year prior to joining us. He is interested in preventive cardiology, coronary artery disease, heart failure, arrhythmia and lipid management.
Certifications
2018: Cardiovascular Disease by American Board of Cardiovascular Medicine
2018: Echocardiography by American Society of Echocardiography
2018: Board of Nuclear Cardiology
2014: Internal Medicine by American Board of Internal Medicine
Hospital Affiliations
Sutter Tracy Community Hospital – Tracy, CA
Doctors Hospital of Manteca – Manteca, CA
Fellowship
American College of Cardiology
Personal
Married to Mansooreh, a Pathologist. Has 2 daughters, Nika and Nora.
Speaks Farsi(Persian) and English.
Hobbies: Hiking, traveling and movies
Venkata Emani, MD
Dr. Venkata Emani is a board-certified interventional cardiologist who has been practicing in the San Joaquin Valley for over 22 years. Dr. Emani joined Stockton Cardiology in 2022. He completed his fellowship in Interventional Cardiology from the University of Alabama and his fellowship in Cardiology from the Medical College of Virginia.
Certifications
Interventional Cardiology, American Board of Internal Medicine
Cardiovascular Disease, American Board of Cardiovascular Medicine
Internal Medicine, American Board of Internal Medicine
Fellowships
Interventional Cardiology, University of Alabama
Cardiology, Medical College of Virginia
Residency
University Of Illinois College Of Medicine
Hospital Affiliations
St. Joseph’s Medical Center – Stockton, CA
Dameron Hospital – Stockton, CA
Doctors Hospital of Manteca – Manteca, CA
Sutter Tracy Community Hospital – Tracy, CA
Doctors Medical Center – Modesto, CA
Personal
Dr Emani is a long-term Stockton resident and has two children
Glenmore Lasam, MD
Dr. Lasam joined Stockton Cardiology Medical Group in 2022. His work experience includes roles as a Cardiology Registered Nurse, Hospitalist, and Medical Officer. He completed medical school at Cagayan State University. His fellowships included Cardiovascular Disease and Advanced Multimodality Cardiovascular Imaging at Mount Sinai Health System and Icahn School of Medicine, Mount Sinai Morningside, New York, NY.
Certifications
ARDMS Registered Physician in Vascular Interpretation
Certification Board of Cardiovascular Computed Tomography
Diplomate, Adult Comprehensive Echocardiography (National Board of Echocardiography)
Certification Board of Nuclear Cardiology
Fellowships
Cardiovascular Disease – Mount Sinai Health System and Icahn School of Medicine at Mount Sinai, Mount Sinai Morningside, New York, NY
Advanced Multimodality Cardiovascular Imaging Fellowship – Mount Sinai Health System and Icahn School of Medicine at Mount Sinai and Mount Sinai St. Luke’s and Mount Sinai West, New York, NY
Cardiovascular Imaging Research – Atlantic Health System, Gagnon Cardiovascular Institute at Morristown Medical Center, an Affiliate of Sidney Kimmel Medical College of Thomas Jefferson University, Morristown, NJ
Residency
Internal Medicine – Atlantic Health System Overlook Medical Center, an Affiliate of Sidney Kimmel Medical College of Thomas Jefferson University, Summit, NJ
Internal Medicine – University of the Philippines Philippine General Hospital and Medical Center, Manila, Philippines
Positions
Hospitalist – Atlantic Health System Overlook Medical Center, Summit, NJ
Cardiology Registered Nurse – Dignity Health Mercy General Hospital, Sacramento, CA
Medical Officer IV – University of the Philippines Philippine General Hospital and Medical Center, Manila, Philippines
Medical Officer Ill – University of the Philippines Philippine General Hospital and Medical Center Manila, Philippines
Medical Intern – University of the Philippines Philippine General Hospital and Medical Center, Manila, Philippines
Public Health Nurse – Local Government Unit Municipal Health Center, Penablanca, Cagayan, Philippines
Hospital Affiliations
Sutter Tracy Community Hospital – Tracy, CA
Doctors Hospital of Manteca – Manteca, CA
Languages Spoken
English, Ilocano, Tagalog
Nadia Shaikh, MD
Dr. Shaikh joined Stockton Cardiology Medical Group in 2023. She is a graduate of Stanford University, and completed medical school at the University of Massachusetts. She completed Cardiovascular and Interventional Cardiology fellowships at Lahey Hospital and Medical Center in Burlington MA, and residency in Internal Medicine at Brown University.
Certifications
American Board of Internal Medicine
American Board of Internal Medicine: Cardiovascular Diseases
Certification Board of Nuclear Cardiology
Certification Board of Cardiovascular CT
National Board of Echocardiography
Fellowships
Cardiovascular Medicine – Lahey Hospital and Medical Center, Burlington MA,
Interventional Cardiology – Lahey Hospital and Medical Center, Burlington MA,
Residency
Internal Medicine – Brown University
Hospital Affiliations
St. Joseph’s Medical Center – Stockton, CA
Mark Twain Medical Center – San Andreas, CA