Dr. Diana Dickson-Witmer
- Gender: Female
- Experience: 45 years
- Graduated from: University Of Florida College Of Medicine
- Graduation year: 1976
- Sole propriator: No
- NPI: 1932189131
Dr. Diana Dickson-Witmer M.D.
Surgeon
She is located at 1504 North Broom Street Suite 2 in Wilmington, DE 19806. Can help patients with the following: Enlarged Spleen, Esophageal Cancer, Inflammatory Bowel Disease (IBD), Lymphedema, Pheochromocytoma (PCC), Pilonidal Cyst. Her National Provider Identifier (NPI) number is 1932189131. Appointment can be made via the phone number (302) 656-1882. She is affiliated with 3 practices and 1 hospitals.
Conditions treated
Dr. Diana Dickson-Witmer, being an surgeon, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Diana Dickson-Witmer.
- Achalasia
- Anal Fissure
- Appendicitis
- Bile Duct Cancer
- Boils
- Breast Cancer
- Cancer
- Carcinoid Tumor
- Colon Cancer
- Crohn's Disease
- Cyst
- Diverticulosis
- Enlarged Spleen
- Esophageal Cancer
- Gallbladder Cancer
- Gallstones
- Gangrene
- Heart Disease
- Hemorrhoids
- Hernia
- Inflammatory Bowel Disease (IBD)
- Lymphedema
- Melanoma
- Non-Hodgkin's Lymphoma (NHL)
- Pancreatic Cancer
- Pancreatitis
- Peptic Ulcer
- Pheochromocytoma (PCC)
- Pilonidal Cyst
- Sebaceous Cyst
- Skin Cancer
- Thyroid Cancer
- Ulcerative Colitis
Procedures Performed by Dr. Diana Dickson-Witmer
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Diana Dickson-Witmer as in-network for the following 2026 plans.
Health plans
Ambetter Health of Delaware
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 17 plans from Ambetter Health of Delaware
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Clear Gold | EPO · Gold | Preferred | Accepting new patients |
| Clear Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Elite Silver | EPO · Silver | Preferred | Accepting new patients |
| Elite Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Everyday Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Focused Silver | EPO · Silver | Preferred | Accepting new patients |
| Focused Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Principal Bronze HSA | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Principal Bronze HSA + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Accepting new patients |
AmeriHealth Caritas Next
Network data as of Sep 11, 2026, as reported by the insurer.
Show all 8 plans from AmeriHealth Caritas Next
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| AmeriHealth Caritas Next Bronze Essential + No Referrals | HMO · Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Bronze Premier + No Referrals | HMO · Expanded Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Bronze Signature + No Referrals | HMO · Expanded Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Gold Premier + No Referrals | HMO · Gold | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Gold Signature + No Referrals | HMO · Gold | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Essential + No Referrals | HMO · Silver | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Premier + No Referrals | HMO · Silver | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Signature + No Referrals | HMO · Silver | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Diana Dickson-Witmer is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Diana Dickson-Witmer is enrolled to bill Medicare as a Practitioner - General Surgery .
Bills through: Christiana Care Health Services Inc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Focal Therapeutics | $822 |
| Cianna Medical | $245 |
| Genentech | $155 |
Other
| Food and Beverage | $1381 |
| Travel and Lodging | $125 |
Studies
UNIVERSITY OF FLORIDA COLLEGE OF MEDICINE
Graduated in 1976Additional Specialities
- Specialist
- Oncological Surgeon
Affiliated practices
Looking for more Surgeons?
There are 6 other surgeons in this region.
- Gender: Male
- Address: 649 Shore Road Somers Point, 8244, NJ
- Gender: Female
- Address: Suite 115 2401 Pennsylvania Avenue Wilmington, 19806, DE
- Gender: Male
- Address: 1600 Pennsylvania Avenue Wilmington, 19806, DE
- Gender: Male
- Address: 649 Shore Road Somers Point, 8244, NJ
- Gender: Male
- Address: 1600 Pennsylvania Avenue Wilmington, 19806, DE
- Gender: Male
- Address: Suite 1 1500 Shallcross Avenue Wilmington, 19806, DE
Questions & Answers
What conditions does Dr. Diana Dickson-Witmer treat?
Dr. Diana Dickson-Witmer provides treatment for Enlarged Spleen, Esophageal Cancer, Inflammatory Bowel Disease (IBD), Lymphedema, Pheochromocytoma (PCC), Pilonidal Cyst. For the full list see this list.
Does Dr. Diana Dickson-Witmer accept patients with Ambetter Health of Delaware?
Yes, Dr. Diana Dickson-Witmer is listed in-network for Ambetter Health of Delaware through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Has Dr. Diana Dickson-Witmer affiliation with hospitals?
Dr. Diana Dickson-Witmer is affiliated with CHRISTIANA HOSPITAL.
Does Dr. Diana Dickson-Witmer have affiliation with practices?
Dr. Diana Dickson-Witmer is affiliated with Christiana Care Health System. For the full list of practices see this list.
Where can you meet with Dr. Diana Dickson-Witmer?
Dr. Diana Dickson-Witmer's office is located at 1504 North Broom Street Suite 2 in Wilmington, DE 19806.