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About

Summary: The Northeast Georgia Diagnostic Clinic (NGDC), a private, multi-specialty medical practice founded in 1953 and headquartered in Gainesville, GA, operates across three offices in Gainesville (1240 Jesse Jewell Pkwy SE, Gainesville, GA 30501), Braselton, and Athens. The clinic offers General Internal Medicine, Endocrinology, Hematology/Medical Oncology, Nephrology, Pulmonary Disease, and Rheumatology, with on-site services including Cancer Care, Clinical Laboratory, Imaging, Diabetes/Nutrition Education, Physical Therapy, and Sleep Medicine. NGDC employs about 37 staff and generates roughly $11.1 million in annual revenue.

Clinic Type

Oncology / Cancer Care

Address

1485 Jesse Jewell Parkway NE Suite 330, Gainesville, GA 30501

Phone

470-228-7700

Email

email@email.com

Opening Hours

Monday–Friday 8:00 a.m. – 5:00 p.m.

Services Offered

  • Hematology Oncology
  • Oncology Diagnostics
  • Cancer Care

Team

  • Antony Joseph Charles, MD — Hematology Oncology
  • Andre Michel Kallab, MD — Hematology Oncology
  • Padma Chowdary Nadella, MD — Hematology Oncology
  • Deepak Ravindranathan, MD — Hematology Oncology
  • Christina Altagracia Saurel, MD — Hematology Oncology / Medical Oncology
  • Saloni Himat Tanna, MD — Hematology Oncology
  • Mark Douglas Clark, CNP — Nurse Practitioner (Hematology Oncology)
  • Michele D Shook, CNP — Nurse Practitioner (Hematology Oncology)
  • Lucy Greer Sorto, CNP — Nurse Practitioner (Hematology Oncology)
  • Kelly Alexis Steely, CNP — Nurse Practitioner (Hematology Oncology)
  • Melissa Davis Summerlin, CNP — Nurse Practitioner (Hematology Oncology)

Insurance & Payment

Languages Spoken

  • English

FAQs

What are the clinic hours?

Monday 8:00 a.m. - 5:00 p.m. Tuesday 8:00 a.m. - 5:00 p.m. Wednesday 8:00 a.m. - 5:00 p.m. Thursday 8:00 a.m. - 5:00 p.m. Friday 8:00 a.m. - 5:00 p.m.

Awards & Accreditations

  • 4.9/5 ratings across providers
  • 270 ratings for Antony Charles, MD
  • 219 ratings for Andre Kallab, MD
  • 160 ratings for Padma Nadella, MD
  • 281 ratings for Christina Saurel, MD

Photos

What Patients Say

Overall sentiment across review platforms: very positive

  • Northside Diagnostic Clinic website: 4.9 out of 5 (270 ratings (clinic location aggregate))
  • Birdeye: 5.0 out of 5 (6 reviews)
  • Northside Hospital Provider Profiles: 4.9 out of 5
  • Northside Hospital Provider Profiles: 4.8 out of 5 (160 ratings (Dr. Nadella))

Patients praise

  • Professional, courteous, and attentive staff
  • Effective, life-saving medical care
  • Empathetic and caring treatment environment
  • Helpful front desk staff

Common complaints

  • No specific complaints or negative themes identified in search results

"Extremely professional, courteous, attentive, staff that goes above and beyond to care for the patients. 1000/10."

LocalityBiz/Birdeye reviewer

"Excellent care and the people at the desk are very kind and have helped us a lot."

LocalityBiz/Birdeye reviewer

"By the grace of God, Dr. Saurel and all the AMAZING staff & nurses literally saved my life! I’m in remission!!! You all are part of my family now!! I am forever grateful for your empathy and true care!"

WebMD patient review for Dr. Saurel

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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