Lone Star Oncology and American Oncology Network Welcome Dr. Derrick Nguyen

Rhea-AI Summary

American Oncology Network (NASDAQ:AONC) and Lone Star Oncology announced that Derrick Nguyen, MD, FACP joined Lone Star Oncology's physician team and is accepting new patients as of Jan. 6, 2026. Dr. Nguyen is a Board-certified medical oncologist with over 15 years of practice, trained at the University of Texas Health Science Center and completed residency at the University of New Mexico Health Sciences Center.

Lone Star Oncology opened in June 2023 and joined AON, expanding local access to infusion therapy, centralized lab and pathology, oral oncolytic delivery and financial counseling through the network partnership.

Key Figures

Clinical experience: Over 15 years Practice opening date: June 2023

2 metrics

Clinical experience Over 15 years Dr. Nguyen’s practice duration as medical oncologist

Practice opening date June 2023 Lone Star Oncology opened and joined AON

Market Reality Check

Price: $11.50 Vol: Volume 401 is below the 2...

low vol

$11.50 Last Close

Volume Volume 401 is below the 20-day average of 2,370, suggesting light participation into the 106.9% pre-news move. low

Technical Price at $12.00 is trading above the 200-day MA of $8.72, reflecting a pre-existing uptrend.

Peers on Argus

AONC’s 106.9% gain contrasts with mixed peers: NUMIF up 37.16%, HLYK up 16.34%, ...

AONC’s 106.9% gain contrasts with mixed peers: NUMIF up 37.16%, HLYK up 16.34%, while WHTCF and ATIP show no change, indicating a stock-specific move rather than a broad sector rotation.

Historical Context

5 past events · Latest: Oct 10 (Positive)

Pattern 5 events

Date	Event	Sentiment	Move	Catalyst
Oct 10	Research abstracts	Positive	-1.5%	Multiple AON research abstracts accepted at ASCO Quality Care Symposium.
Oct 07	Physician addition	Positive	+0.3%	Board-certified oncologist joined partner practice in Maryland locations.
Sep 02	Physician addition	Positive	+2.8%	New oncologist joined Genesis Cancer and Blood Institute care team.
Aug 12	Growth update	Positive	+2.0%	Reported >$2B revenue, >40% growth and network expansion milestones.
Jul 24	Lab reaccreditation	Positive	+15.6%	Central lab reaccredited by College of American Pathologists.

Pattern Detected

Recent operational and growth announcements have more often seen positive price alignment, with one notable negative divergence.

Recent Company History

Over the past six months, American Oncology Network has highlighted laboratory quality, network growth and physician expansion. Reaccreditation of its central lab on Jul 24, 2025 coincided with a 15.56% gain. A growth update on Aug 12, 2025 noted revenue above $2 billion and over 40% year-over-year growth, with a 2% rise. Multiple partner-practice physician additions in September and October also saw modest positive to flat reactions. Today’s physician addition at Lone Star Oncology fits this pattern of network and capacity expansion news.

Market Pulse Summary

This announcement highlights expansion of American Oncology Network’s clinical capacity as Lone Star...

Analysis

This announcement highlights expansion of American Oncology Network’s clinical capacity as Lone Star Oncology adds a Board-certified medical oncologist with over 15 years of experience. It fits a series of updates on physician recruitment, practice growth and enhanced services such as infusion therapy and centralized pathology. Investors may track how such additions translate into broader network reach, patient volumes and future operational updates within AON’s community oncology model.

Key Terms

medical oncologist, internal medicine, medical oncology fellowship, infusion therapy, +1 more

5 terms

medical oncologist medical

"Dr. Nguyen is a Board-certified medical oncologist who has been practicing"

A medical oncologist is a doctor who diagnoses and treats cancer using medicines such as chemotherapy, targeted drugs and immunotherapy, and who coordinates overall medical care for cancer patients. Investors pay attention because these specialists decide which therapies patients receive and influence how quickly new drugs move from trials to routine use — like a coach whose playbook determines which new equipment actually gets used by the team.

internal medicine medical

"completed an internal medicine internship and residency at the University"

Internal medicine is the medical specialty that diagnoses and treats illnesses of the body’s internal systems in adults, such as heart, lung, kidney, digestive and metabolic conditions. Think of internists as general managers of adult health who decide which medicines, tests or specialists are needed; their decisions shape demand for drugs, diagnostics, hospital care and outpatient services, so shifts in internal medicine practice can affect healthcare company revenues and costs.

medical oncology fellowship medical

"He then completed a medical oncology fellowship at the University of Texas"

A medical oncology fellowship is an advanced training program doctors complete after general medical and residency training to become cancer specialists who diagnose and treat tumors with medicines and oversee clinical trials. Think of it as an intensive apprenticeship or masterclass that builds deep expertise and credibility; for investors, fellows’ presence and the fellowship program’s strength signal a hospital or research center’s ability to run rigorous trials, attract partnerships, and deliver specialized care that can affect revenue and reputation.

infusion therapy medical

"expanded access to services including infusion therapy, centralized laboratory"

Infusion therapy is the delivery of medicines, nutrients or fluids directly into a vein or body cavity over a set time using an IV line, pump or catheter, like a slow, controlled drip that bypasses swallowing. Investors care because it underpins durable healthcare revenue streams—hospital and home-based services, specialized equipment and drug sales—while regulatory approvals, safety issues and reimbursement rules can affect demand and margins.

pathology services medical

"centralized laboratory and pathology services, oral oncoloytic medication"

Pathology services are medical laboratory and diagnostic activities that examine blood, tissue, and other samples to detect disease, confirm diagnoses, and guide treatment—think of them as a detective lab that tells doctors what’s happening inside the body. For investors, these services matter because they create steady revenue tied to testing volume, reimbursement rules and healthcare demand, and changes in technology, regulation or clinical practice can materially affect a provider’s growth and margins.

AI-generated analysis. Not financial advice.

GEORGETOWN, Texas, Jan. 06, 2026 (GLOBE NEWSWIRE) -- Lone Star Oncology and American Oncology Network (AON), one of the nation’s fastest-growing networks of community-based oncology practices, is pleased to announce Derrick Nguyen, MD, FACP, has joined the practice’s physician team and is accepting new patients.

Dr. Nguyen is a Board-certified medical oncologist who has been practicing for over 15 years. He earned his Doctor of Medicine degree from the University of Texas Health Science Center at San Antonio.

Upon graduation, he completed an internal medicine internship and residency at the University of New Mexico Health Sciences Center in Albuquerque. He then completed a medical oncology fellowship at the University of Texas Health Science Center.

“I am honored to join Lone Star Oncology,” said Dr. Nguyen. “The practice has built a strong reputation for delivering compassionate patient-centered care close to home. That philosophy closely aligns with my own approach to oncology, and I look forward to working alongside Dr. Shimkus and the care team to serve patients and families in our community.”

“We are pleased to welcome Dr. Nguyen to Lone Star Oncology,” said Brian J. Shimkus, MD, a Board-certified medical oncologist and hematologist at the practice. “His clinical expertise and commitment to personalized care will further strengthen our ability to provide high-quality oncology services to the Central Texas patients we serve.”

Lone Star Oncology opened in June 2023 and joined AON at that time. The community-based oncology and hematology practice is led by Dr. Shimkus and his multidisciplinary care team and specializes in the treatment of cancer and blood disorders.

Through its partnership with AON, Lone Star Oncology has expanded access to services including infusion therapy, centralized laboratory and pathology services, oral oncoloytic medication delivery and financial counseling.

“On behalf of American Oncology Network, I am pleased to welcome Dr. Nguyen to Lone Star Oncology and to our national network,” said Stephen “Fred” Divers, MD, AON’s chief medical officer. “His dedication to compassionate, high-quality care reflects our mission to deliver exceptional, patient-centered cancer care in the communities where patients live and work. Dr. Nguyen will be a valuable addition to the team and to the patients we serve across Texas.”

For more information about American Oncology Network, visit www.AONcology.com. For more information about Lone Star Oncology, visit www.lonestaronc.com.

About American Oncology Network
American Oncology Network (AON) is an alliance of physicians and seasoned healthcare leaders partnering to ensure the long-term success and viability of community oncology and other specialties. Founded in 2018, AON’s rapidly expanding network represents more than 300 providers practicing across 20 states. AON pioneers innovative healthcare solutions through its physician-led model, fostering value-based care that improves patient outcomes while reducing costs and expanding access to quality care. AON equips its network physicians with the tools they need to thrive independently while providing comprehensive support, integrated revenue-diversifying ancillary services, and practice management expertise, enabling physicians to focus on what matters most – providing the highest standard of care for every patient. AON is committed to promoting health equity by addressing disparities in cancer care and ensuring that all patients have access to the care they need to achieve optimal health outcomes. With a focus on innovation and collaboration, AON is shaping the future of community oncology. For more information, please visit AONcology.com or follow us on LinkedIn, Facebook, X (formerly Twitter) and YouTube.

About Lone Star Oncology

Lone Star Oncology is a community-based medical oncology and hematology practice providing treatment for patients diagnosed with all types of cancer and blood disorders. Through compassionate care that centers around the patient, we strive to provide the best possible experience to patients and their families throughout the healthcare journey. Learn more at www.lonestaronc.com.

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/0937c011-af9c-4f01-8f27-a472f9a9ac14

Media Contact:
Karen Riley Sawyer
American Oncology Network
Karen.Sawyer@AONcology.com

FAQ

Who is Dr. Derrick Nguyen and what is his role at Lone Star Oncology (AONC)?

Dr. Derrick Nguyen is a Board-certified medical oncologist who joined Lone Star Oncology's physician team and is accepting new patients.

When was the announcement that Dr. Derrick Nguyen joined Lone Star Oncology (AONC)?

The announcement date is January 6, 2026.

What clinical background does Dr. Derrick Nguyen have as described in the AONC announcement?

He has over 15 years of practice, an MD from University of Texas Health Science Center at San Antonio, residency at University of New Mexico, and an oncology fellowship at University of Texas Health Science Center.

How does Lone Star Oncology's partnership with American Oncology Network (AONC) expand patient services?

Through the AON partnership, Lone Star Oncology expanded access to infusion therapy, centralized lab and pathology, oral oncolytic delivery and financial counseling.

Is Lone Star Oncology accepting new patients with Dr. Nguyen on staff (AONC)?

Yes, the announcement states Dr. Nguyen is joining the practice and is accepting new patients.

Where can investors or patients find more information about American Oncology Network and Lone Star Oncology (AONC)?

Visit www.AONcology.com for American Oncology Network and www.lonestaronc.com for Lone Star Oncology.