Name: Dr. Karen Eldin

Specialty: Anatomic Pathology and Clinical Pathology; subspecialties in Pediatric Pathology, Fetal Pathology, Surgical Pathology, Transfusion Medicine, and Transplant Pathology

Qualification / Board Certification: Baylor College of Medicine; Fellowship — Pediatric Pathology and Blood Banking/Transfusion Medicine, Baylor College of Medicine (2010); board certification details not publicly listed — contact office for confirmation

Affiliation(s): Texas Children’s Hospital — Houston, TX

Locations (City/State): Salem, MA; Boston, MA

Languages Spoken: English

Accepting New Patients: Yes

NPI Number: 1043266901

About the Doctor

Dr. Karen Eldin, MD is a highly specialized and accomplished Anatomic and Clinical Pathologist with more than 18 years of dedicated experience in laboratory medicine and pathological diagnosis. She earned her Doctor of Medicine degree from Baylor College of Medicine — one of the most respected and research-intensive medical institutions in the United States — and went on to complete her pathology residency at Baylor College of Medicine Affiliated Hospitals. Following residency, she pursued dual fellowship training at Baylor College of Medicine in both Pediatric Pathology and Blood Banking/Transfusion Medicine, completing her advanced training in 2010. This exceptional combination of subspecialty fellowships reflects a level of specialized expertise that is rare even among experienced pathologists.

Pathology is the foundational medical discipline that underpins accurate diagnosis across virtually every field of medicine. Pathologists like Dr. Eldin serve as the physicians’ physician — applying deep scientific knowledge of disease biology, microscopic tissue analysis, and laboratory testing to provide the diagnostic clarity that guides treatment decisions for patients with cancer, infections, immune disorders, metabolic conditions, genetic diseases, and more. Dr. Eldin’s subspecialty focus areas — Pediatric Pathology, Fetal Pathology, Surgical Pathology, Transfusion Medicine, and Transplant Pathology — represent some of the most technically demanding and clinically impactful areas of pathology practice, and her mastery of each reflects decades of advanced training and hands-on expertise.

Beyond her laboratory work, Dr. Eldin is an active member of four prestigious professional organizations: the College of American Pathologists (CAP), the United States and Canadian Academy of Pathology (USCAP), the Society for Pediatric Pathology (SPP), and the American Association of Blood Banks (AABB). These memberships reflect her commitment to staying at the forefront of pathological science, contributing to professional knowledge, and upholding the highest standards of diagnostic quality and laboratory excellence. She is affiliated with Texas Children’s Hospital in Houston and practices across two locations in Salem and Boston, Massachusetts. She is currently accepting new patients.

Key Highlights:

• Over 18 years of experience in anatomic and clinical pathology
• Graduate of Baylor College of Medicine — MD, Residency, and dual Fellowship
• Dual fellowship training in Pediatric Pathology and Blood Banking/Transfusion Medicine (2010)
• Subspecialty expertise in Fetal Pathology, Surgical Pathology, and Transplant Pathology
• Member of four distinguished professional pathology organizations
• Affiliated with Texas Children’s Hospital, Houston, TX
• Two practice locations — Salem and Boston, MA
• Currently accepting new patients
• NPI Number: 1043266901

Education & Training

Medical School: Baylor College of Medicine, Houston, TX — Doctor of Medicine (MD)

Residency: Baylor College of Medicine Affiliated Hospitals — Anatomic Pathology and Clinical Pathology Residency

Fellowship / Additional Training: Baylor College of Medicine — Fellowship in Pediatric Pathology (completed 2010) Baylor College of Medicine — Fellowship in Blood Banking / Transfusion Medicine (completed 2010)

Professional Memberships: College of American Pathologists (CAP) — Member United States and Canadian Academy of Pathology (USCAP) — Member Society for Pediatric Pathology (SPP) — Member American Association of Blood Banks (AABB) — Member

Medical Conditions Treated / Evaluated

As an Anatomic and Clinical Pathologist, Dr. Eldin provides diagnostic pathology services that support the evaluation, diagnosis, and management of a wide range of conditions. Her pathological expertise contributes to the clinical workup of the following conditions.

• Adult medical examination findings requiring laboratory interpretation
• Vitamin D deficiency — laboratory evaluation and monitoring
• Women’s health examination findings and gynecologic pathology
• High Blood Pressure — laboratory assessment and metabolic workup support
• Infectious disease screening — laboratory identification and diagnosis
• HIV screening and related laboratory evaluations
• Urinary problems — urinalysis and urine pathology
• Lipid metabolism disorders — laboratory lipid profile analysis
• High Cholesterol — lipid panel evaluation and interpretation
• Hypothyroidism and thyroid disorders — thyroid function testing
• Sore throat — culture, rapid testing, and infectious pathology
• Blood test abnormalities — CBC, metabolic panel, and ancillary laboratory evaluation
• Type 2 Diabetes — glucose and HbA1c laboratory monitoring
• Cancer screening — surgical pathology and tissue biopsy evaluation
• Diarrhea — stool culture, infectious pathology, and gastrointestinal workup
• Anemia — blood smear, CBC, and hematological evaluation
• Urinary tract infections — urine culture and sensitivity testing
• Thyroid disorders — thyroid function panel and pathological evaluation
• Pediatric and fetal pathological conditions
• Transplant tissue evaluation and rejection pathology
• Transfusion medicine and blood product management

Medical Procedures Performed

Dr. Eldin performs and oversees a comprehensive range of pathological laboratory procedures and diagnostic services. These include the following.

• Ancillary Testing (additional specialized diagnostic tests supporting primary pathological findings)
• Blood Sample collection and processing
• Blood Smear (microscopic examination of blood cells for hematological diagnosis)
• Blood Sugar / Plasma Glucose Test (diabetes and metabolic monitoring)
• Bone Pathology evaluation (analysis of bone tissue for disease and malignancy)
• Chemical Pathology Consultation (expert consultation on biochemical and metabolic lab findings)
• Chemical Pathology Follow-Up (monitoring of chemical pathology cases over time)
• Electrolyte Test / pH Imbalance evaluation (assessment of acid-base and electrolyte status)
• Surgical Pathology (gross and microscopic examination of surgical tissue specimens)
• Pediatric Pathology (specialized diagnosis of diseases in infants and children)
• Fetal Pathology (autopsy and tissue analysis of fetal specimens)
• Transfusion Medicine procedures (blood typing, crossmatching, and blood product management)
• Transplant Pathology (evaluation of transplanted organ biopsies for rejection and disease)
• Fine needle aspiration and cytological specimen evaluation
• Immunohistochemistry and molecular pathology testing
• Hematopathology and bone marrow evaluation
• Microbiology culture and sensitivity testing
• Urinalysis and urine culture interpretation

Services Offered

Dr. Karen Eldin provides a comprehensive, multidisciplinary range of anatomic and clinical pathology services that serve as the diagnostic backbone for clinical care across a wide spectrum of medical conditions and patient populations. Her practice is distinguished by a rare breadth of subspecialty expertise that spans pediatric, fetal, surgical, transplant, and transfusion pathology — making her one of the most comprehensively trained pathologists in the New England region.

Surgical Pathology: Dr. Eldin examines and interprets tissue specimens removed during surgical procedures, providing pathological diagnoses that determine whether tumors are benign or malignant, define cancer staging and margins, and guide post-surgical treatment planning. Her surgical pathology services cover a wide range of organ systems and tissue types, and she provides timely, accurate, and thoroughly documented diagnostic reports to guide clinical care.

Pediatric Pathology: As a fellowship-trained Pediatric Pathologist, Dr. Eldin possesses specialized expertise in the diagnosis of diseases affecting infants, children, and adolescents. Pediatric pathology requires distinct diagnostic knowledge due to the unique disease presentations, developmental considerations, and tissue characteristics seen in young patients. Dr. Eldin applies this expertise to the evaluation of pediatric tissue biopsies, surgical specimens, and diagnostic specimens across a wide range of childhood conditions.

Fetal Pathology: Dr. Eldin provides expert fetal pathology services, including the examination of placental tissue, fetal autopsies, and evaluation of congenital anomalies. These services play a critical role in helping families and clinicians understand the causes of pregnancy loss, stillbirth, and congenital disorders, providing information that is essential for grief support, genetic counseling, and future pregnancy planning.

Transfusion Medicine: As a fellowship-trained Blood Banking and Transfusion Medicine specialist, Dr. Eldin oversees the safe and appropriate use of blood products in clinical care. Her transfusion medicine expertise encompasses blood typing and crossmatching, antibody identification, management of transfusion reactions, and optimization of blood product utilization — services that are critical to patient safety in surgical, oncologic, and critical care settings.

Transplant Pathology: Dr. Eldin provides pathological evaluation of transplant biopsies, identifying signs of rejection, infection, and other complications in transplanted organs. Accurate transplant pathology is essential to guiding immunosuppressive therapy and preserving graft function in transplant recipients.

Clinical Pathology and Laboratory Medicine: Dr. Eldin oversees and interprets a broad range of clinical laboratory tests, including blood chemistry panels, hematological evaluations, microbiology cultures, urinalysis, thyroid function tests, lipid panels, glucose monitoring, electrolyte assessments, and infectious disease screening. Her chemical pathology consultation services provide expert guidance on complex or abnormal laboratory findings.

Cancer Screening Support: Through tissue biopsy evaluation, cytological specimen analysis, and immunohistochemical testing, Dr. Eldin supports the early detection and diagnosis of cancer — including gynecologic, gastrointestinal, thyroid, and hematological malignancies.

Services at a Glance:

• Surgical pathology — tissue biopsy and specimen analysis
• Pediatric pathology — specialized diagnosis in children and infants
• Fetal pathology — placental evaluation, fetal autopsy, and congenital anomaly assessment
• Transfusion medicine — blood banking, crossmatching, and blood product management
• Transplant pathology — organ biopsy evaluation for rejection and complications
• Clinical laboratory medicine and chemical pathology consultations
• Blood smear and hematological evaluation
• Cancer screening tissue analysis and tumor pathology
• Thyroid function and disorder laboratory evaluation
• Infectious disease and HIV screening laboratory support
• Urinalysis and urine culture interpretation
• Glucose, lipid, and metabolic panel evaluation
• Electrolyte and pH imbalance assessment
• Bone pathology evaluation
• Immunohistochemistry and ancillary diagnostic testing

Accepted Insurance Plans

• Medicare
• Express Scripts
• All Other Third Party Plans (contact office to verify)

Please call (832) 824-1866 before your appointment to confirm that your specific insurance plan and network are accepted. This list is regularly updated but is not a guarantee of coverage.

Practice Locations

Location 1 — Primary Practice Address: 81 Highland Ave, Salem, MA 01970

Phone: (832) 824-1866

Location 2 — Secondary Practice Address: 1153 Centre St, Boston, MA 02130

Phone: Call main office — (832) 824-1866

Hospital Affiliations

• Texas Children’s Hospital — Houston, TX (Admitting privileges; one of the nation’s leading pediatric hospitals)