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DDSI Ambulatory Endoscopy Centers

Broadway Hefner Office

Infusion Center

Midwest City Office

Colon Cancer Screening

Upper Endoscopy (EGD)

Endoscopic Retrograde Cholangiopancreatography (ERCP)

Flexible Sigmoidoscopy

Our Providers

Ashley Bouknight, APRN

Maria C. Chang, MD

Mikel Cross, APRN

Neil Crittenden, M.D.

Rohtashav Dhir, M.D.

Amarilys Fernandez-Maldonado, M.D.

Ross S. Keener, M.D.

Pramoda Koduru, M.D.

Sikandar A. Mesiya, M.D.

David A. Neumann II, M.D.

Son H. Nguyen, M.D.

BaoLong Nguyen, M.D.

Salman Nusrat, M.D.

Carl A. Raczkowski, M.D.

Scottie Smith, APRN

Zach Smith, M.D.

David S. Stokesberry, M.D.

Verapan Vongthavaravat, M.D.

Sumit A. Walia, M.D.

Clinical Trials

GI Related Links

Patient Education and Videos

Physicians and Advanced Practice Providers

Staff Positions

Colorectal Cancer Alliance

Contact Us

My Health Record

Pay My Bill

DDSI Ambulatory Endoscopy Centers

Broadway Hefner Office

Infusion Center

Midwest City Office

Colon Cancer Screening

Upper Endoscopy (EGD)

Endoscopic Retrograde Cholangiopancreatography (ERCP)

Flexible Sigmoidoscopy

Our Providers

Ashley Bouknight, APRN

Maria C. Chang, MD

Mikel Cross, APRN

Neil Crittenden, M.D.

Rohtashav Dhir, M.D.

Amarilys Fernandez-Maldonado, M.D.

Ross S. Keener, M.D.

Pramoda Koduru, M.D.

Sikandar A. Mesiya, M.D.

David A. Neumann II, M.D.

Son H. Nguyen, M.D.

BaoLong Nguyen, M.D.

Salman Nusrat, M.D.

Carl A. Raczkowski, M.D.

Scottie Smith, APRN

Zach Smith, M.D.

David S. Stokesberry, M.D.

Verapan Vongthavaravat, M.D.

Sumit A. Walia, M.D.

Clinical Trials

GI Related Links

Patient Education and Videos

Physicians and Advanced Practice Providers

Staff Positions

Colorectal Cancer Alliance

Contact Us

My Health Record

Pay My Bill

Folder: Offices

DDSI Ambulatory Endoscopy Centers

Broadway Hefner Office

Infusion Center

Midwest City Office

Folder: Procedures

Colon Cancer Screening

Upper Endoscopy (EGD)

Endoscopic Retrograde Cholangiopancreatography (ERCP)

Flexible Sigmoidoscopy

Folder: Providers

Our Providers

Ashley Bouknight, APRN

Maria C. Chang, MD

Mikel Cross, APRN

Neil Crittenden, M.D.

Rohtashav Dhir, M.D.

Amarilys Fernandez-Maldonado, M.D.

Ross S. Keener, M.D.

Pramoda Koduru, M.D.

Sikandar A. Mesiya, M.D.

David A. Neumann II, M.D.

Son H. Nguyen, M.D.

BaoLong Nguyen, M.D.

Salman Nusrat, M.D.

Carl A. Raczkowski, M.D.

Scottie Smith, APRN

Zach Smith, M.D.

David S. Stokesberry, M.D.

Verapan Vongthavaravat, M.D.

Sumit A. Walia, M.D.

Clinical Trials

Folder: Resources

GI Related Links

Patient Education and Videos

Physicians and Advanced Practice Providers

Staff Positions

Colorectal Cancer Alliance

Contact Us

My Health Record

Pay My Bill

Physicians & Advanced Practice Providers

Job Openings

Advanced Practice Providers– APRN or PA

Job Description

Gastroenterologist

Job Description

Office Locations

DDSI Ambulatory Endoscopy Centers
Broadway Hefner Office
Infusion Center
Edmond Office
Midwest City Office
South Office
Yukon Office

Payment & Billing

10029 N. Oklahoma Ave., Oklahoma City, OK 73114

P: (405) 767-6630

My Health Record

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