William Sanderson Twaddell, MD
William Sanderson Twaddell, MD is a Pathology in Baltimore, Maryland. Graduated from Columbia University College of Physicians and Surgeons in 2004, 22 years ago. Practices with Chester River Hospital Center, a 30-clinician group and accepts Medicare assignment. Licensed in Maryland and New York.
- Years since qualifying
- 22
- Trained at
- Columbia University College of Physicians and Surgeons
- Licensed in
- MD, NY
- In the registry since
- 2007
- Specialties on file
- 2
What do these letters mean?
- MD — Doctor of Medicine
- A physician who completed allopathic medical school.
Practice location Address checks out
22 S Greene St NBW73Baltimore, MD 21201-1544
Phone: (410) 328-5555
Fax: (410) 328-0929
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Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Anatomic Pathology & Clinical Pathology Physician (primary) | Taxonomy 207ZP0102X · Licence D68076 (MD) |
|---|---|
| Anatomic Pathology Physician | Taxonomy 207ZP0101X · Licence 242497-1 (NY) |
Record details
| NPI number | 1538296124 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | MD |
| Sole proprietor | No |
| NPI enumerated | February 28, 2007 |
| Last updated in NPPES | May 7, 2026 |
| Certification date | May 7, 2026 |
Medicare enrollment
| Medicare specialty | PATHOLOGY |
|---|---|
| Medical school | COLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS |
| Graduated | 2004 (22 years in practice) |
| Group practice | Chester River Hospital Center — 30 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
| Practice locations | 3 on file with Medicare |
Other providers in Baltimore
-
Dr. Steven G Silverberg, MD
22 S Greene St NBW73, Baltimore, MD 21201-1544 · (410) 328-5514
-
Charles Steenbergen Jr., MD
600 N Wolfe St, Baltimore, MD 21287-0005 · (410) 955-5000
-
Dr. Chen-Chih J Sun, MD
22 S Greene St NBW73, Baltimore, MD 21201-1544 · (667) 214-1608
-
Dr. Elizabeth Dell Thompson, MD, PHD
600 N Wolfe St, Baltimore, MD 21287-0005 · (434) 989-8203
-
Dr. Emily Wilding, MD
22 S Greene St University Of Maryland, Baltimore, MD 21201-1544 · (410) 328-5555
-
Mrs. Laura Delong Wood
701 Cathedral St Apt 51, Baltimore, MD 21201-5245 · (443) 831-5884
-
Yujie Zhang, MD, PHD
600 N Wolfe St, Baltimore, MD 21287-0005 · (410) 955-3580