Top Doctors 2025: Internal Health

Editorial StaffMarch 8, 2025
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Internal medicine and its many specialty offshoots are spotlighted in this broad listing.

INTERNAL MEDICINE

Certified by the American Board of Internal Medicine, these doctors undergo three years of residency training to diagnose and treat internal diseases that afflict adults.

Phoenix/Central Valley

Frank Agnone MD
Village Medical
345 E Virginia Ave
Phoenix, 602-258-5545

Gerald Asin MD
Stonecreek Medical Associates
10565 N Tatum Blvd, Ste B116
Paradise Valley, 480-659-0448

Heather Bartz DO
Banner University Medical Group
1300 N 12th St, Ste 508
Phoenix, 602-839-3927

Cory Buschmann MD
Internal Medicine of Arizona
4840 E Indian School Rd, Ste 101
Phoenix, 602-522-1900

Michael Germain MD
Arizona Internists
6565 E Greenway Pkwy, Ste 102
Phoenix, 480-900-7595

Sonal Haerter MD
Dignity Health Medical Group
500 W Thomas Rd, Ste 900
Phoenix, 602-406-3540

Harvey Hsu MD
Banner University Medical Group
1300 N 12th St, Ste 508
Phoenix, 602-839-3927

Zuhdi Jasser MD
Jasser Center for
Comprehensive Care
1010 E McDowell Rd, Ste 300
Phoenix, 602-251-3122

Nolawi Mengesha MD*
Banner Health Center-Desert Ridge
4375 E Irma Ln
Phoenix, 480- 890-5800

Jeffrey Nebelsieck MD
Internal Medicine of Arizona
4840 E Indian School Rd, Ste 101
Phoenix, 602-522-1900

Laura O’Malley MD
Internal Medicine of Arizona
4840 E Indian School Rd, Ste 101
Phoenix, 602-522-1900

Danielle Wicklow MD
Arizona Internists
6565 E Greenway Pkwy, Ste 102
Phoenix, 480-900-7595

Scottsdale

Nathan Delafield MD
Mayo Clinic
13400 E Shea Blvd
Scottsdale, 480-301-8087

Jay Friedman MD*
Adult Internal Medicine of
North Scottsdale
10290 N 92nd St, Ste 203
Scottsdale, 480-391-0707

Juliana Kling MD
Mayo Clinic Women’s Health
13737 N 92nd St
Scottsdale, 480-614-6001

Douglas Lakin MD
Paradise Valley Medical Clinic
9977 N 90th St, Ste 180
Scottsdale, 480-614-5800

Tamara Lieberman MD
Scottsdale Private Physicians
10900 N Scottsdale Rd, Ste 104
Scottsdale, 480-990-1564

Donald Opila MD
3260 N Hayden Rd, Ste 103
Scottsdale, 480-994-1166

Sadankumar Patel MD
Shree Physicians
8404 E Shea Blvd, Ste 100
Scottsdale, 480-584-5959

Shital Patel DO
HonorHealth Medical Group
10200 N 92nd St, Ste 200
Scottsdale, 480-882-7410

Dana Paull MD
HonorHealth Medical Group
5316 E Shea Blvd, Ste 100
Scottsdale, 480-882-7420

Bernadette Reidy MD
Mayo Clinic
13400 E Shea Blvd
Scottsdale, 480-301-8087

East Valley

Ammar Alsheikh MD
The Wellness Medical Clinic
1880 W Frye Rd, Ste 1
Chandler, 480-821-5500

Joshua Bloomberg DO
Bloomberg Premier
Medical Group
6301 S McClintock Dr, Ste 201
Tempe, 480-838-3100

Robert J Bloomberg MD
Bloomberg Premier Medical Group
6301 S McClintock Dr, Ste 201
Tempe, 480-838-3100

Gerard B Chamberlin MD
Chamberlin Internal Medicine
and Pediatrics
6242 E Arbor Ave, Ste 123
Mesa, 480-930-4600

Megan Jhaver MD*
Infinity Internal Medicine
1110 S Dobson Rd, Ste 7
Chandler, 480-855-3229

West Valley

Julaiha B Ariff MD
Sunrise Primary Care Partners
12647 W Smokey Dr, Bldg F, Ste 119
Surprise, 623-544-1700

Simrat Kaur MD
HonorHealth Medical Group
6220 W Bell Rd, Ste 100
Glendale, 602-547-7300

Seema Mohan MD
Carefree Internal Medicine
36800 N Sidewinder Rd, Ste A4
Carefree, 480-595-0431

Ashish Sachdeva MD*
Pinnacle Care Internal Medicine
9401 W Thunderbird Rd, Ste 155
Peoria, 623-249-2100

Namita Sachdeva MD
Pinnacle Care Internal Medicine
9401 W Thunderbird Rd, Ste 155
Peoria, 623-249-2100

Patrick Sciara MD
Alliance Medical Clinic
42104 N Venture Dr, Ste D118
Anthem, 623-505-6565

Allergy & Immunology

Certified by the American Board of Allergy and Immunology, these docs receive advanced training and experience in allergies, asthma and other immunologic diseases.

Aaron Davis MD
Allergy, Asthma and
Immunology Associates
7514 E Monterey Way, Ste 1
Scottsdale, 480-949-7377

Jennifer Hill MD
Allergy Partners of Phoenix
4901 N 44th St, Ste 103
Phoenix, 602-954-0405

Kiranjit Khalsa MD
Premier Allergy Asthma and
Immunology
8575 E Princess Dr, Ste 111
Scottsdale, 602-313-1606

Michael Manning MD
Allergy, Asthma and
Immunology Associates
7514 E Monterey Way, Ste 1
Scottsdale, 480-949-7377

Ronald Mittel MD
Arizona Asthma and
Allergy Institute
3200 E Camelback Rd, Ste 125
Phoenix, 602-734-0370

Matthew Rank MD
Mayo Clinic
13400 E Shea Blvd
Scottsdale, 480-301-5019

Radha Rishi MD*
Arizona Allergy Associates
705 S Dobson Rd
Chandler, 480-897-6992

Julie Wendt MD
Relieve Allergy, Asthma and Hives
21803 N Scottsdale Rd, Ste 200
Scottsdale, 480-500-1902

Duane Wong MD
Arizona Allergy Associates
705 S Dobson Rd
Chandler, 480-897-6992

Kiranjit Khalsa, M.D.

Allergy & Immunology
Med School/Year Graduated: St. George’s University, 2013
Years in Practice: 7

Unlike most allergists, you’re also board-certified in internal medicine. How does this enhance your practice?
Being board-certified in both [allows] me to provide a holistic approach to patient care. I focus on treating acute allergy issues while considering the patient’s overall health, managing comorbidities and ensuring comprehensive treatment.

How do you approach pediatric vs. adult allergy cases? Are they treated essentially the same, or are there different factors for growing kids?
Yes, I’m grateful to care for both pediatric and adult patients, enabling me to treat entire families. While each approach differs, the goal is consistent, enhancing quality of life. For children, it’s alleviating symptoms and easing parents’ concerns. For adults, it’s addressing allergies’ broader impact on health.

Do you personally suffer from allergies or asthma?
How has your experience affected your approach to your practice?
I’m fortunate to only have mild allergies, but even mild symptoms affect me daily. This experience fuels my empathy for patients with more severe allergies and drives my passion to provide relief, helping them live without limitations.

You’re a New York native and completed your fellowship and residency in The Empire State. How much do the health concerns of Arizona patients differ from those in New York?
In regard to environmental allergies, my New York patients often struggled with seasonal allergies and, in urban areas, traffic-related air pollution. In contrast, Arizona’s mild winters lead to year-round allergies, with pollen present throughout
the year.

Which public health measures do you think might help mitigate allergies and immune disorders?
There’s so much to consider. Community outreach, especially in underserved areas, is a passion of mine. Efforts like improving air quality through stricter pollution regulations, promoting allergy education and encouraging the early introduction of allergenic foods in infancy can make a significant difference.

What hobbies and interests do you have outside medicine?
I enjoy Pilates, evening strolls with my two dogs, playing the piano and traveling. Above all, I cherish being involved in my kids’ daily activities. Whether it’s dance class or basketball practice, it brings me immense joy.

What shows are you streaming these days?
This is a tough one with so many great shows to choose from! That said, with three kids, my TV options usually range from Daniel Tiger to Spider-Man and His Amazing Friends.

“If I wasn’t a doctor I would be a…”
I’d definitely be a veterinarian. My passion for healing has always gone hand in hand with my deep love for animals. My first volunteer experience was at an animal shelter, and I absolutely loved it!

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Endocrinology

Endocrinologists are specially trained physicians who diagnose diseases related to the glands and hormones – including the pancreas and diabetes.

Joan Bailey MD
Midtown Endocrine Associates
2200 N 3rd St
Phoenix, 602-258-9955

Anna Boron MD
Arkangel Endocrinology & Diabetes
2222 E Highland Ave, Ste 221
Phoenix, 602-675-1213

Ricardo Correa MD
Carl T Hayden VA Medical Center
650 E Indian School Rd
Phoenix, 602-277-5551

Andrea Ferenczi MD*
Endocrinology Associates
9328 E Raintree Dr
Scottsdale, 602-266-8463

Heather Saran DO
Bright Endocrinology
14354 N Frank Lloyd Wright Blvd, Ste 18
Scottsdale, 480-725-6025

Iyad Syoufi MD
Scottsdale Endocrinology
9336 E Raintree Dr, Ste 150
Scottsdale, 480-219-5597

Bithika Thompson MD
Mayo Clinic
13400 E Shea Blvd
Scottsdale, 480-301-8000

Karyne Vinales MD
Carl T Hayden VA
Medical Center
650 E Indian School Rd
Phoenix, 602-277-5551

Grace Zlaket-Matta MD
Scottsdale Endocrinology
9336 E Raintree Dr, Ste 150
Scottsdale, 480-219-5597

Gastroenterology

These digestion-focused physicians study the normal function and diseases of the esophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder, bile ducts and liver.

Norio Fukami MD
Mayo Clinic
13400 E Shea Blvd
Scottsdale, 480-301-8000

Adam Harris MD
Digestive Health Specialists
of Arizona
8573 E Princess Dr, Ste 215
Scottsdale, 480-563-5757

Nilay Kavathia MD
Arizona Digestive Health
603 W Baseline Rd, Ste 200
Mesa, 480-461-1088

Gavin N Levinthal MD
HonorHealth-Thompson Peak
20745 N Scottsdale Rd, Ste 120
Scottsdale, 480-882-7510

Daniel Meline MD
Arizona Digestive Health
10752 N 89th Pl, Ste C134
Scottsdale, 480-860-1990

Michael R. Mills MD
Arizona Digestive Health
349 E Coronado Rd
Phoenix, 602-266-5678

Rahul Pannala MD
Mayo Clinic
13400 E Shea Blvd
Scottsdale, 480-301-8000

Nayan Patel DO
Arizona Digestive Health
10752 N 89th Pl, Ste C134
Scottsdale, 480-614-2215

Sandeep Patel MD
Southeast Valley
Gastroenterology
875 S Dobson Rd
Chandler, 480-899-9800

Savio Reddymasu MD
Digestive Institute of Arizona
3011 S Lindsay Rd, Ste 115
Gilbert, 602-541-1575

Anil Seetharam MD
Arizona Digestive Health
10752 N 89th Pl, Ste C134
Scottsdale, 480-614-2215

Akshay Shah MD
HonorHealth Gastroenterology-Osborn
3501 N Scottsdale Rd, Ste 320
Scottsdale, 480-882-5740

Deepa Shah MD
HonorHealth Gastroenterology-Osborn
3501 N Scottsdale Rd, Ste 320
Scottsdale, 480-882-5740

Suzanne Skoog MD
Digestive Health Specialists
8573 E Princess Dr, Ste 215
Scottsdale, 480-563-5757

Amar Thosani MD*
HonorHealth Interventional Endoscopy Associates
9201 E Mountain View Rd, Ste 115
Scottsdale, 623-300-9011

Stuart Triester MD
HonorHealth Gastroenterology-Thompson Peak
20745 N Scottsdale Rd, Ste 120
Scottsdale, 480-882-7510

Infectious Disease

This subspecialty focuses on diagnosing and managing infections and disorders caused by organisms – such as bacteria, viruses, fungi or parasites.

Janis Blair MD
Mayo Clinic Hospital
5777 E Mayo Blvd
Phoenix, 480-342-0115

John Burge MD*
HonorHealth Medical Group
9201 E Mountain View Rd, Ste 105
Scottsdale, 480-587-6970

Vipul Ganatra MD
Zion Medical Group
3800 S Alma School Rd, Ste 112
Chandler, 602-900-9466

Neema Mafi MD
Valley ID Associates
19841 N 27th Ave, Ste 403
Phoenix, 602-439-0274

Eias Murad MD
Valley ID Associates
19841 N 27th Ave, Ste 403
Phoenix, 602-439-0274

Robert Orenstein DO
Mayo Clinic Hospital
5777 E Mayo Blvd
Phoenix, 480-342-0115

Steven Salas MD
HonorHealth Medical Group
9201 E Mountain View Rd, Ste 105
Scottsdale, 480-587-6970

Nephrology & Hypertension

Nephrologists specialize in the treatment of acute and chronic renal (kidney) disease, which often disrupts the hormonal axis that governs blood pressure.

David Burstein MD
Arizona Kidney Disease and Hypertension Center
7301 E 2nd St, Ste 118
Scottsdale, 480-994-1238

Katharine Dahl MD
Arizona Kidney Disease and Hypertension Center
2545 E Thomas Rd, Ste 120
Phoenix, 602-419-3378

Sachin Desai MD
Arizona Kidney Disease and Hypertension Center
21410 N 19th Ave, Ste 131
Phoenix, 623-780-1371

Melissa Go MD
Southwest Kidney Institute
2610 N 3rd St
Phoenix, 480-610-6100

Amandeep Khurana MD
Southwest Kidney Institute
2610 N 3rd St
Phoenix, 480-610-6100

Sungchun Lee MD
Arizona Kidney Disease and Hypertension Center
21410 N 19th Ave, Ste 131
Phoenix, 623-780-1371

Clyde Mendonca MD
Southwest Kidney Institute Plc
2149 E Warner Rd, Ste 101
Tempe,480-610-6100

Alejandro Morales MD
Arizona Kidney Disease and Hypertension Center
7301 E 2nd St, Ste 118
Scottsdale, 480-994-1238

Esmat Mustafa MD*
Arizona Kidney Disease and Hypertension Center
16620 N 40th St, Ste B4
Phoenix, 602-559-5770