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DDSI Ambulatory Endoscopy Centers

Oklahoma City Integris Office

Infusion Center

Midwest City Office

Colon Cancer Screening

Upper Endoscopy (EGD)

Endoscopic Retrograde Cholangiopancreatography (ERCP)

Flexible Sigmoidoscopy

Our Providers

Amarilys Fernandez-Maldonado, M.D.

Ashley Bouknight, APRN

BaoLong Nguyen, M.D.

Carl A. Raczkowski, M.D.

David A. Neumann II, M.D.

David S. Stokesberry, M.D.

Maria C. Chang, MD

Mikel Cross, APRN

Neil Crittenden, M.D.

Pramoda Koduru, M.D.

Rohtashav Dhir, M.D.

Ross S. Keener, M.D.

Salman Nusrat, M.D.

Scottie Smith, APRN

Sikandar A. Mesiya, M.D.

Son H. Nguyen, M.D.

Sumit A. Walia, M.D.

Syed Rizvi, M.D.

Trisha Taron, MSN, APRN, FNP-C, CGRN

Verapan Vongthavaravat, M.D.

Zach Smith, 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

Oklahoma City Integris Office

Infusion Center

Midwest City Office

Colon Cancer Screening

Upper Endoscopy (EGD)

Endoscopic Retrograde Cholangiopancreatography (ERCP)

Flexible Sigmoidoscopy

Our Providers

Amarilys Fernandez-Maldonado, M.D.

Ashley Bouknight, APRN

BaoLong Nguyen, M.D.

Carl A. Raczkowski, M.D.

David A. Neumann II, M.D.

David S. Stokesberry, M.D.

Maria C. Chang, MD

Mikel Cross, APRN

Neil Crittenden, M.D.

Pramoda Koduru, M.D.

Rohtashav Dhir, M.D.

Ross S. Keener, M.D.

Salman Nusrat, M.D.

Scottie Smith, APRN

Sikandar A. Mesiya, M.D.

Son H. Nguyen, M.D.

Sumit A. Walia, M.D.

Syed Rizvi, M.D.

Trisha Taron, MSN, APRN, FNP-C, CGRN

Verapan Vongthavaravat, M.D.

Zach Smith, 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

Oklahoma City Integris Office

Infusion Center

Midwest City Office

Folder: Procedures

Colon Cancer Screening

Upper Endoscopy (EGD)

Endoscopic Retrograde Cholangiopancreatography (ERCP)

Flexible Sigmoidoscopy

Folder: Providers

Our Providers

Amarilys Fernandez-Maldonado, M.D.

Ashley Bouknight, APRN

BaoLong Nguyen, M.D.

Carl A. Raczkowski, M.D.

David A. Neumann II, M.D.

David S. Stokesberry, M.D.

Maria C. Chang, MD

Mikel Cross, APRN

Neil Crittenden, M.D.

Pramoda Koduru, M.D.

Rohtashav Dhir, M.D.

Ross S. Keener, M.D.

Salman Nusrat, M.D.

Scottie Smith, APRN

Sikandar A. Mesiya, M.D.

Son H. Nguyen, M.D.

Sumit A. Walia, M.D.

Syed Rizvi, M.D.

Trisha Taron, MSN, APRN, FNP-C, CGRN

Verapan Vongthavaravat, M.D.

Zach Smith, 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

Dr. Dhir

Dr. Dhir

Bio coming soon

Office Locations:

Coming Soon

Digestive Disease Specialists, Inc.

Office Locations

DDSI Ambulatory Endoscopy Centers
Oklahoma City Integris Office
Infusion Center
Edmond Office
Midwest City Office
South Office
Yukon Office

Payment & Billing

701 Cedar Lake Blvd, Ste. 300
Oklahoma City, OK 73114

P: (405) 767-6630

My Health Record

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