Providers

Specialists that are dedicated to your health and well-being.

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    Trusted Experts
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    Convenient Care
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    Fast Appointments

The dedicated providers of nodSpecialists are highly-skilled and experts in their chosen medical field with advanced training and education in order to best treat you. Located and licensed across the United States, they average over 10 years of experience. nodSpecialists providers also published across peer-reviewed journals and articles, are recipients of medical awards and recognition from their peers and patients, and are active members of their communities.

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  • Annette Artau, MD photo

    Annette Artau, MD

    Infectious Disease Specialist

    Dr. Annette Artau is an Infectious Disease physician at nodSpecialists. She obtained her me...

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  • Asad Khan, MD photo

    Asad Khan, MD

    Nephrology Specialist

    Dr. Khan is double board-certified in nephrology and internal medicine. He completed his in...

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  • Christopher Oberholzer, MD photo

    Christopher Oberholzer, MD

    Pediatric Infectious Disease Specialist

    Dr. Oberholzer is double board-certified in Pediatrics and Pediatric Infectious Diseases an...

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  • Dipika Patel-Boolan, MD photo

    Dipika Patel-Boolan, MD

    Rheumatology Specialist

    Dr. Dipika Patel-Boolani is a board-certified rheumatologist. She graduated from the Univer...

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  • Dr. Rejeesh Vasudev, MD photo

    Dr. Rejeesh Vasudev, MD

    Nephrology Specialist

    During his childhood, Dr. Vasudev grew up in a rural area in India with poor access to heal...

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  • Dustin Marley, MMS, PA-C photo

    Dustin Marley, MMS, PA-C

    Infectious Disease Provider

    Dustin Marley has worked as a physician assistant in infectious diseases since graduating f...

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  • Jacquelyn Hedlund, MD, MS photo

    Jacquelyn Hedlund, MD, MS

    Hematology Specialist

    Jacquelyn Hedlund is an associate medical director at Change Healthcare. She is a graduate ...

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  • Jeff Gishkin, LMHC, LPC, NCC, LSAC, NBCDCH photo

    Jeff Gishkin, LMHC, LPC, NCC, LSAC, NBCDCH

    Licensed Professional Counselor

    Jeff holds a Master’s Degree in Counseling from Arizona State University and graduated from...

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  • Jennifer Pennock, MD photo

    Jennifer Pennock, MD

    Endocrinology Specialist

    Jennifer Pennock, MD is a board-certified endocrinologist in practice for over 15 years. Sh...

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  • Kevin T. Stephan, MD, FACP photo

    Kevin T. Stephan, MD, FACP

    Infectious Disease Specialist

    Dr. Stephan is a board-certified Infectious Disease specialist. Previously, he served as Ch...

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  • Madhu K. Murthy, MD, MHSA photo

    Madhu K. Murthy, MD, MHSA

    Infectious Disease Specialist

    Dr. Murthy is a board-certified Infectious Diseases Specialist. He has served in multiple l...

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  • Nancy Walker, MD, MPH photo

    Nancy Walker, MD, MPH

    Rheumatology Specialist

    Dr. Nancy Walker is a highly skilled, board-certified rheumatologist at nodSpecialists. ...

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  • Natasha N. Dave, MD photo

    Natasha N. Dave, MD

    Nephrology Specialist

    Natasha N. Dave, MD is a nephrologist at nodSpecialists and the medical director at Strive ...

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  • Patricia Gill, MD photo

    Patricia Gill, MD

    Infectious Disease Specialist

    Dr. Gill is a board-certified infectious diseases specialist. She also maintains board cert...

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  • Raul Vasquez-Garagatti, MD photo

    Raul Vasquez-Garagatti, MD

    Infectious Disease Specialist

    Raul Vasquez-Garagatti, MD is a double board-certified physician in Infectious Diseases and...

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  • Sheba Asghar, MD photo

    Sheba Asghar, MD

    Endocrinology Specialist

    Dr. Sheba Asghar, after obtaining her early schooling in Europe, graduated from Aga Khan Un...

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  • Swati K. Kumar, MD photo

    Swati K. Kumar, MD

    Endocrinology Specialist

    Dr. Swati K. Kumar is a board certified physician in Internal Medicine as well as Endocrino...

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  • Tricia Montgomery, MEd, RD, CDE photo

    Tricia Montgomery, MEd, RD, CDE

    Registered Dietitian and Certified Diabetes Educator

    Tricia Montgomery is a Registered Dietitian (RD) and Certified Diabetes Care and Education ...

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  • Andrea Farris, NP-C photo

    Andrea Farris, NP-C

    Infectious Disease Provider

    Andrea is a family nurse practitioner, board-certified by the American Association of Nurse...

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  • Elizabeth Sherman, FNP photo

    Elizabeth Sherman, FNP

    Infectious Disease Provider

    Elizabeth Sherman is a Board Certified Family Nurse Practitioner specializing in Integrativ...

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  • Iva Tirres, FNP-C photo

    Iva Tirres, FNP-C

    Infectious Disease Provider

    Iva Tirres is a nationally certified family nurse practitioner specializing in infectious d...

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  • Katie Vogan, NP photo

    Katie Vogan, NP

    Infectious Disease Provider

    Katie began her nursing career in the United States Army, and after 14 years of service she...

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  • Lee-Ann Dizon MSN, FNP-C photo

    Lee-Ann Dizon MSN, FNP-C

    Infectious Disease Provider

    Lee-Ann received her BSN from Loma Linda University in California. From there, she worked a...

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  • Mehran Darzy, FNP photo

    Mehran Darzy, FNP

    Infectious Disease Provider

    Mehran has worked in healthcare for over 30 years. He graduated from Grand Canyon Universit...

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  • Susan Donoghue photo

    Susan Donoghue

    Infectious Disease Provider

    Susan is a family nurse practitioner, board-certified by the American Association of Nurse ...

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  • Tangeca Wells, FNP-C photo

    Tangeca Wells, FNP-C

    Infectious Disease Provider

    Born in Elizabethtown, Kentucky, Tangeca grew a passion for the medical field very early in...

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  • Tracie Johnson-Wagner, PMHNP photo

    Tracie Johnson-Wagner, PMHNP

    Psychiatric Mental Health Nurse Practitioner

    Tracie Denie Johnson-Wagner is a board-certified Psychiatric Mental Health Nurse Practition...

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  • Reverend Jose Valenzuela photo

    Reverend Jose Valenzuela

    Behavioral Health

    Rev. Jose Valenzuela is the Lead Chaplain with Chaplain Jose Spiritual Care. ...

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