Dr. Catherine Teskin, DO
Not yet claimedRheumatologist · Physician (DO)
Newark, DE
Dr. Catherine Teskin is a rheumatologist with ChristianaCare in Newark, Delaware. She treats adults with arthritis and other rheumatic diseases.
About Dr. Catherine Teskin, DO
Updated Sep 20, 2026Dr. Catherine M. Teskin is an osteopathic physician (DO) who practices rheumatology with ChristianaCare in Newark, Delaware. Rheumatologists diagnose and treat muscle, bone, joint, and autoimmune conditions. Her employer biography says she has been with ChristianaCare since 2018.
She earned her DO degree from the Edward Via Virginia College of Osteopathic Medicine and studied biology and psychology at Virginia Tech. She completed an internal medicine residency through Sidney Kimmel Medical College at Thomas Jefferson University/ChristianaCare in Newark, DE, and a rheumatology fellowship at Thomas Jefferson University Hospital in Philadelphia.
Besides seeing patients, she teaches. A ChristianaCare Rheumatology Fellowship faculty page says she began teaching in graduate medical education in 2020 and in rheumatology in 2023. Her bio lists membership in the American College of Rheumatology, the American College of Physicians, and the Pennsylvania Rheumatology Society.
Her public footprint is small. Research did not find published studies, news coverage, or public statements from her about vaccines, supplements, or treatment guidelines. CMS Open Payments records for 2021-2025 show $74.95 total across 3 records from AbbVie and Amgen. Payments from industry to physicians are common and legal, and this amount is very small.
- Rheumatology at ChristianaCare
- She practices rheumatology with ChristianaCare and has been with the organization since 2018, treating musculoskeletal and systemic autoimmune conditions. doctors.christianacare.org
- Medical school and training
- DO from Edward Via Virginia College of Osteopathic Medicine; internal medicine residency at Sidney Kimmel Medical College at Thomas Jefferson University/ChristianaCare; rheumatology fellowship at Thomas Jefferson University Hospital. doctors.christianacare.org
- Teaches fellows and residents
- The ChristianaCare Rheumatology Fellowship faculty page states she started teaching in graduate medical education in 2020 and in rheumatology in 2023. residency.christianacare.org
- Professional memberships
- Her biography lists membership in the American College of Rheumatology, the American College of Physicians, and the Pennsylvania Rheumatology Society. doctors.christianacare.org
- Office locations
- Listed at ChristianaCare Rheumatology, 4735 Ogletown-Stanton Rd, Newark, DE, with a second Wilmington address at 501 W 14th St appearing on one directory. health.usnews.com
- Hospital affiliations
- Doximity lists affiliations with ChristianaCare and Christiana Care - Wilmington Hospital. doximity.com
- Research background
- Her biography says she has served as a researcher for Jefferson's Department of Radiology and at ChristianaCare. No specific published papers were found. doctors.christianacare.org
- Industry payments are minimal
- CMS Open Payments for 2021-2025 show $74.95 total across 3 records, from AbbVie ($49.58) and Amgen ($25.37). openpaymentsdata.cms.gov
Worth knowing
- Board certification could not be confirmed in a primary source. One payer directory lists her certifications field as "Not Provided." Patients who want this confirmed can ask her office or check directly with the certifying board. phppd.providence.org
- Directory sites do not agree on her specialty and city. Healthgrades describes her as "an internist in Wilmington, DE," while ChristianaCare and most other sources list her as a Newark-based rheumatologist. doctors.christianacare.org
- A check of Delaware's DELPROS license-verification system and court dockets was not completed during this research. No disciplinary action, lawsuit, or criminal matter appeared in general web searching, but that is not the same as a clean records check. The Delaware Board of Medical Licensure and Discipline posts public disciplinary actions. dpr.delaware.gov
- Patient-rating sites carry both favorable and strongly critical reviews, including a detailed negative account on one site. These are unverified consumer reviews. vitals.com
Industry payments (CMS Open Payments)
Open the CMS recordFederal law requires drug and device companies to report what they pay clinicians: meals, travel, speaking, consulting, and research. Payments are common and legal; the point is that you can see them.
2021 to 2025
$75
3 payments
| 2021 | $0 |
| 2022 | $0 |
| 2023 | $0 |
| 2024 | $0 |
| 2025 | $75 |
Top payers
- ABBVIE INC.$50
- Amgen Inc.$25
Payment types
- Food and Beverage$75
A word of caution about these numbers
A payment does not mean your doctor is compromised or acting unethically. Most of these entries are drug samples left for patients, or lunch brought in for the office staff, and the amounts are usually small. Research funding and speaking at medical meetings are also normal parts of a clinical career.
As a rough guide, a total under $15,000 a year is usually not a concern. Much larger sums, especially from one company whose product your doctor recommends to you, are worth asking about. You are allowed to ask.
Sources: doctors.christianacare.org · residency.christianacare.org · christianacare.org · doximity.com · linkedin.com · phppd.providence.org · health.usnews.com · vitals.com. Something wrong or out of date? Tell us and we will correct it.
Summary prepared with AI assistance from the public sources linked above. It is not a review, a rating, or an endorsement.
Practice location
ChristianaCare Rheumatology
Christiana Hospital 4755 Ogletown-Stanton Rd
Newark, DE 19718
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