DMG Internal Medicine

Supporting the Health of Adults and Senior Adults

District Medical Group (DMG) has a conveniently located Internal Medicine practice in East Mesa to serve adults of all activity levels. Our goal is to help you achieve the quality of life you desire by partnering with you for preventive care as well as chronic or complex condition management. Our internal medicine physicians and nurse practitioners treat and/or offer the following:

Acute and chronic conditions
Aortic artery screening
Asthma
BladderScan® with FloPoint® screening
Cardiac issues, with on-site electrocardiograms (EKG)
Cardiovascular health
Cholesterol
Chronic pain
Diabetes
Ears, nose and throat
Gastrointestinal and digestive disease
Gynecological exams and issues

Hypertension and/or high blood pressure
Infections
Immunizations
Kidney disease
Minor surgery
Nutritional counseling and weight loss
Pain management
Pregnancy testing
Preventive medicine
Sleep disorders
Urology disease management

We accept most medical insurance plans, including AHCCCS and Medicare. In addition, we provide discounts for self-pay patients.

Appointments

To schedule an appointment, please call (480) 830-4164.
Same day appointments may be available.
Please arrive 20 minutes early for your first appointment and 15 minutes prior for all subsequent appointments.
Please bring the following to each appointment:
- AHCCCS or current medical insurance card
- Depending on your insurance plan, you may need to bring payment for your co-payment; cash, debit or credit cards are accepted.
- Valid photo identification (state-issued driver’s license or ID card, military ID, employment badge, student ID, or passport)
If you need to cancel or reschedule an appointment, 24-hours’ notice is requested.

New Patient Forms

For your convenience, New Patient Registration Forms are available online so you can download and complete the forms prior to your first appointment. Click here to download the forms; remember to bring the completed forms to your first appointment.

Location(s)

Meet Our Internal Medicine Providers

Providers

Andres Borja Alvarez, MD

Andres Borja Alvarez, MD

Physician
Chief, Pulmonary Section

Medical Specialty: Pulmonary Disease, Critical Care Medicine, Internal Medicine

Medical School: Pontifical Catholic University of Ecuador, Quito

Certification: American Board of Internal Medicine, Pulmonary Disease and Critical Care Medicine

Surabhi Amar, MD

Surabhi Amar, MD

Physician

Medical Specialty: Hematology and Oncology
Internal Medicine

Medical School: Maulana Azad Medical College, New Delhi

Certification: American Board of Internal Medicine, Hematology and Medical Oncology

Meily R. Arevalo, MD

Meily Arevalo, MD

Physician

Medical Specialty: Internal Medicine

Medical School: Faculty of Medicine, San Salvador

Certification: American Board of Internal Medicine

Waqes Arslan, MD

Waqes Arslan, MD

Physician

Medical Specialty: Hematology and Oncology
Internal Medicine

Medical School: Rawalpindi Medical College, Pakistan

Certification: American Board of Internal Medicine, Hematology and Medical Oncology

Sunitha Bandlamuri, MD

Sunitha Bandlamuri, MD

Medical Director, Valleywise Community Health Center - Mesa

Medical Specialty: Internal Medicine

Medical School: Madras University Stanley Medical College, India

Certification: American Board of Internal Medicine

Stephanie Berkshire, MD

Stephanie Berkshire, DO

Physician

Medical Specialty: Geriatrics

Medical School: Western University of Health Sciences, Pomona, CA

Certification: American Board of Internal Medicine

Richard Carlson MD PHD

Richard Carlson, MD, PhD

Medical Specialty: Critical Care Medicine
General Internal Medicine

Medical School: University of Southern California

Certification: Am board Int med, Am board Int med critical care

Ricky A. Chang MD

Ricky Chang, MD

Medical Specialty: General Internal Medicine

Medical School: St. George's University

Certification: Am Bd Internal Medicine

Ahmad Chebbo, MD

Ahmad Chebbo, MD

Physician

Medical Specialty: Critical Care Medicine, Pulmonary Disease, Internal Medicine

Medical School: Lebanese University School of Medicine, Beirut, Lebanon

Certification: American Board of Internal Medicine, Pulmonary Disease and Critical Care Medicine

Sheetal Chhaya, DO, FACR

Sheetal Chhaya, DO, FACR

Physician

Medical Specialty: Rheumatology
Internal Medicine

Medical School: University of Medicine and Dentistry of New Jersey, Stratford, NJ

Certification: American Board of Internal Medicine, Rheumatology

Keng-Yu Chuang, MD

Keng-Yu Chuang, MD

Chief, Division of Gastroenterology

Medical Specialty: Gastroenterology

Medical School: UMDNJ - New Jersey Medical School, Newark, NJ

Certification: Gastroenterology

Tala Dajani, MD

Tala Dajani, MD

Physician

Medical Specialty: Endocrinology

Medical School: University of Texas - Houston

Certification: Am Bd Pediatrics
Am Bd Ped (Sub: Endrocinology)

Patrick David, MD

Patrick Harry David, MD

Vice Chair, Anesthesiology

Medical Specialty: Critical Care Medicine, Anesthesiology

Medical School: Uniformed Services University of Health Sciences, Bethesda, MD

Certification: American Board of Anesthesiology, Critical Care Medicine

Eksambe Deepali, MD

Eksambe Deepali, MD

Physician

Medical Specialty: Neurology

Medical School: B.J. Medical College

Certification: Am Bd Pediatrics
Am Bd Psychiatry & Neurology (Neuro w/Spec Qual Child Neuro)

Nathan L. Delafield MD

Nathan Delafield, MD

Assistant Professor of Medicine - Creighton University School of Medicine

Medical Specialty: General Internal Medicine

Medical School: Indiana University Purdue University Indianapolis, Indianapolis, IN

Certification: American Board of Internal Medicine

Ayah Elmaghrabi, MD

Ayah Elmaghrabi, MD

Physician

Medical Specialty: Nephrology

Medical School: University of Khartoum

Certification: Am Bd Ped (Sub: Nephrology)
Am Bd Pediatrics

Natalie Ertz-Archambault, MD

Natalie Ertz-Archambault, MD

Medical Specialty: Hematology and Oncology

Medical School: University of Arizona

Certification: American Board of Internal Medicine

Katherine Gross, MD

Katherine Gross, MD

Physician

Medical Specialty: Critical Care Medicine
Pulmonary Medicine

Medical School: SABA University School of Medicine

Certification: American Board of Internal Medicine, Sub: Pulmonary Disease, Sub: Critical Care Medicine

Carlo Guerrero, MD

Carlo Guerrero, MD

Medical Specialty: General Internal Medicine

Medical School: Arizona State University

Certification: American Board of Internal Medicine

Waddah Hajja, MD

Waddah Hajja, MD

Medical Specialty: General Internal Medicine

Medical School: Ross University, Roseau, Dominica

Carlos A Hartmann MD

Carlos A. Hartmann, MD

Medical Specialty: Infectious Disease and HIV/AIDS

Medical School: Universidad Nacional Experimental Francisco de Miranda

Certification: American Board of Internal Medicine

Robert K. Horsley MD

Robert Horsley, MD

Medical Specialty: General Internal Medicine
HIV Services
Infectious Disease

Medical School: University of Illinois at Chicago, Rockford, IL

Certification: Am Bd Internal Medicine

Pankaj Jain, MD

Pankaj Jain, MD

Physician

Medical Specialty: Cardiology

Certification: Am Bd Pediatrics
Am Bd Pediatrics (Sub: Cardiology)

Norlalak Jiramethee

Norlalak Jiramethee, MD

Physician

Medical Specialty: Critical Care Medicine
Pulmonary Medicine

Medical School: College of Medicine, Rangsit University, Thailand

Certification: Internal Medicine
Pulmonary Medicine

Stanley Johnsen, MD

Stanley Johnsen, MD

Physician

Medical Specialty: Neurology

Medical School: University of Wisconsin

Certification: Am Bd Pediatrics
Am Bd Psychiatry & Neurology (Neurology)

Kambiz Kadkhodayan MD

Kambiz Kadkhodayan, MD

Gastroenterologist

Medical Specialty: Gastroenterology

Savitha Kalya, MD

Savitha Kalya, MD

Medical Specialty: Rheumatology

Medical School: JSS Medical College

Certification: Internal Medicine & Rheumatology

Christelle Kassis, MD

Christelle Kassis, MD

Medical Specialty: Infectious Disease

Medical School: Lebanese University School of Medicine, Beirut, Lebanon

Judy Liang, MD, MS

Judy Liang, MD, MS

Medical Specialty: Geriatrics

Medical School: Tianjin Medical University, Tianjin China

Certification: American Board of Internal Medicine

Mark MacElwee, MD

Mark MacElwee, MD

Medical Specialty: General Internal Medicine
Pediatrics

Medical School: St. George University

Certification: American Board Internal Medicine

Nancy McNeill, FNP

Nancy McNeill, FNP

Medical Specialty: General Internal Medicine - Same Day Clinic

Azar Mehdizadeh, MD

Azar Mehdizadeh, MD

Medical Specialty: Cardiology

Medical School: University of Ottawa

Certification: Fellow of American College of Cardiology

Divyesh Mehta, MD

Divyesh Mehta, MD

Medical Specialty: Hematology and Oncology

Medical School: Medical College, M.S.Univ of Baroda, Baroda, Gujarat, India

Certification: Internal Medicine, Hematology

Marc Merroto, MD

Marc Merroto, MD

Medical Specialty: Neurology

Medical School: West Virginia University School of Medicine, Morgantown, WV

Certification: Internal Medicine, Neurology

Daniel Miga, MD

Daniel Miga, MD

Physician

Medical Specialty: Cardiology

Medical School: SUNY-Buffalo School of Medicine

Certification: Am Bd Internal Medicine
Am Bd Ped (Sub: Cardiology)

Jeffrey J. Miller MD

Jeffrey Miller, MD

Medical Specialty: General Internal Medicine

Medical School: University of Toledo, Toledo, OH

Certification: Am Bd Internal Medicine

S David Moss, MD

S David Moss, MD

Physician

Medical Specialty: Neurology

Certification: Am Bd Neurological Surgery

Maher Mousa, MD

Maher Mousa, MD

Medical Specialty: Nephrology

Medical School: Med Fak Der University Hamburg, Hamburg, Germany

Certification: Internal Medicine, Geriatric Medicine

Abdul Nadir, MD

Abdul Nadir, MD

Medical Specialty: Gastroenterology

Medical School: University of Karachi, Karachi, Pakistan

Certification: Internal Medicine

Anil Nanda, MD

Anil Nanda, MD

Medical Specialty: Geriatrics

Medical School: University of Arizona College of Medicine, Tucson, AZ

Certification: Internal Medicine, Geriatric Medicine, Hospice and Palliative Care

Vinodh Narayanan, MD

Vinodh Narayanan, MD

Physician

Medical Specialty: Neurology

Medical School: Louisiana State University School of Medicine

Certification: Am Bd Pediatrics
Am Bd Psychiatry & Neurology (Neuro w/Spec Qual Child Neuro)

Douglas P Nelson MD

Douglas P. Nelson, MD

Medical Specialty: General Internal Medicine
Ambulatory Care

Medical School: University of Arizona College of Medicine

Certification: American Board of Internal Medicine

Tarreq M. Noori MD

Tarreq Noori, MD

Hospitalist

Medical Specialty: General Internal Medicine

Medical School: Ross University

Jeffrey Parker, MD

Jeffrey Parker, MD

Medical Specialty: Geriatrics

Medical School: College of Osteopathic Medicine of the Pacific, Pomona, CA

Certification: Internal Medicine

Pedro Quiroga, MD

Pedro Quiroga, MD

Medical Specialty: Critical Care Medicine
Pulmonary Medicine

Medical School: Universidad Automoma De Guadalajara, Guadalajara, Mexico

Certification: Internal Medicine, Pulmonary Medicine and Critical Care Medicine

Edward Rhee, MD

Edward Rhee, MD

Medical Specialty: Electrophysiology

Medical School: University of Pittsburgh School of Medicine, Pittsburgh, PA

Certification: Pediatrics

Raina Roy, MD

Raina Roy, MD

Medical Specialty: Cardiology

Medical School: University of Wisconsin

Certification: Internal Medicine; Cardiovascular Diseases

Marina Rudin, MD

Marina Rudin, MD

Medical Specialty: Endocrinology, Metabolism and Diabetes

Medical School: Texas Tech University Health Science Center, Lubbock, TX

Certification: Internal Medicine, IM (Sub: Endocrinology, Diabetes and Metabolism)

Mansi Sarihan, MD

Mansi Sarihan, MD

Medical Specialty: Dermatology

Medical School: University of Arizona

Certification: American Board of Dermatology

Mehrdad Saririan, MD, CM, FRCPC, FACC, FSCAI

Mehrdad Saririan, MDCM, FACC, FSCAI

Chief of Cardiology

Medical Specialty: Cardiology

Medical School: McGill University, Montreal, Canada

Certification: Interventional Cardiology, Cardiovascular Disease

Shannon Skinner, MD

Shannon Skinner, MD

Medical Specialty: General Internal Medicine
Ambulatory Care

Medical School: Texas Tech University Health Sciences Center School of Medicine, Lubbock, TX

Certification: Internal Medicine, Internal Medicine and Pediatrics

Jacek Sobczak, MD

Jacek Sobczak, MD

Medical Specialty: Neurology

Medical School: Akademia Med Warszawie, Warsaw, Poland

Certification: Neurology

Indu Srinivasan, MD

Indu Srinivasan, MD

Medical Specialty: Gastroenterology

Dale Stern, MD

Dale Stern, MD

Medical Specialty: General Internal Medicine

Medical School: Medical University of the Americas

Bruce Takahashi, DO

Bruce Takahashi, DO

Medical Specialty: General Internal Medicine
Geriatrics

Medical School: University of Osteopathic and Health Sciences, Des Moines, IA

Certification: Internal Medicine

Ashley Tian, MD

Ashley Tian, MD

Physician

Medical Specialty: Neurology

Certification: Am Bd Neurological Surgery

Roselyn Vutien, MD

Roselyn Vutien, MD

Medical Specialty: General Internal Medicine
Ambulatory Care

Medical School: University of Texas Southestern Medical School, Dallas, Texas

Certification: Internal Medicine

Andrew Weinberg, DO

Andrew Weinberg, DO

Doctor of Osteopathic Medicine

Medical Specialty: Gastroenterology

Medical School: Philadelphia College of Osteopathic Medicine

Certification: American Board of Internal Medicine & American Board of Gastroenterology

Kama White, MD

Medical Specialty: General Internal Medicine

Medical School: University of Washington, Seattle, WA

Certification: Internal Medicine, ABIM

Michael White

Michael White, MD

Valleywise Chief Medical Officer
Interventional Cardiologist

Medical Specialty: Internal Medicine - Cardiology

Medical School: Creighton University School of Medicine - Omaha, NE

Scott Williams, MD

Scott Williams, MD

Physician

Medical Specialty: Nephrology

Medical School: Washington University School of Medicine

Certification: Am Bd Pediatrics
Am Bd Ped (Sub: Nephrology)

David Wisinger, MD

David Wisinger, MD

Chairman, Internal Medicine

Medical Specialty: General Internal Medicine
Geriatrics

Medical School: University of South Florida College of Medicine, Tampa, FL

Certification: Internal Medicine

Beeletsega Yeneneh, MD

Beeletsega Yeneneh, MD

Medical Specialty: Cardiology

Medical School: 2005 Jimma University college of Medicine and Public Health

Certification: 2017 - American Board of Internal Medicine-Cardiovascular Diseases

Tina Younger, MD

Tina Younger, MD

Medical Specialty: General Internal Medicine

Medical School: University of Arizona College of Medicine, Tucson, AZ

Certification: Internal Medicine/Pediatrics

Sandra Yuh, MD

Sandra Yuh, MD

Medical Director - CHC Internal Medicine Clinic

Medical Specialty: General Internal Medicine

Medical School: Columbia University College of Physicians and Surgeons

Certification: American Board of Internal Medicine

Syed Zaidi, MD

Syed Zaidi, MD

Medical Specialty: Critical Care Medicine
Pulmonary Medicine

Medical School: Osmania Medical College, Osmania University, Hyderabad, India

Certification: Internal Medicine, Pulmonary Disease, Critical Care Medicine

Rahel Zubairi, MD

Rahel Zubairi, MD

Physician

Medical Specialty: Cardiology

Mid-Level Providers

Natasha Ivey, PA-C

Natasha Ivey, PA-C

Physician Assistant

Medical Specialty: Internal Medicine

Education: Massachusetts College of Pharmacy and Health Science

Cassandra Jo Altamirano, PA

Cassandra Jo Altamirano, PA

Medical Specialty: General Internal Medicine

Education: Northern Arizona University

Stacey E. Klein, ACNP

Stacey Klein, ACNP

Adult Acute Care Nurse Practitioner

Medical Specialty: Internal Medicine

Education: Midland Lutheran College, Fremont NE 2002

Certification: American Nurses Credentialing Center

Lauren Lambert, FNP

Lauren Lambert, FNP

Medical Specialty: General Internal Medicine - Nurse Practitioner

Tanya Sarkinsian, FNP

Tanya Sarkinsian, FNP

Medical Specialty: General Internal Medicine
Ambulatory Care

Education: Master's Degree - Grand Canyon University

Certification: American Academy of Nurse Practitioners

Tina Stoneking, FNP

Tina Stoneking, FNP

Nurse Practitioner

Medical Specialty: Internal Medicine

Education: Wichita State University

Certification: American Association of Nurse Practitioner

Sarah Taraborelli PA

Sarah Taraborelli, PA

Medical Specialty: General Internal Medicine - Physician Assistant

Janet Wildemuth, PA-C

Janet Wildemuth, PA-C

Physician Assistant

Medical Specialty: Internal Medicine

Education: A.T. Still University