Clinician Staff Directory

Raymond Martins, MD

Chief Medical Officer

PROFESSIONAL EDUCATION:
MD - The George Washington University

RESIDENCY:
Internal Medicine – The George Washington University

CERTIFICATIONS:
ABIM Certified – Internal Medicine

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV, Primary Medical Care

FACULTY APPOINTMENTS:
Assistant Clinical Professor of Medicine, The George Washington University
Assistant Clinical Professor, Virginia Commonwealth University

Elizabeth Taylor Medical Center – limited availability by appointment

Ravi Ajmera, MD

Infectious Disease Physician

PROFESSIONAL EDUCATION:
MD - University of California at San Diego School of Medicine

INTERNSHIP/RESIDENCY: 
Internal Medicine - University of California at San Diego Hospital Center

FELLOWSHIP: 
Infectious Disease - George Washington University

CERTIFICATIONS:
Board Certified in Internal Medicine and Infectious Disease

LANGUAGES SPOKEN:
English, Hindi

CLIENT SPECIALTIES:
Infectious Disease, HIV

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available by appointment

Justin Arnold, PA, MPH

Physician Assistant

PROFESSIONAL EDUCATION:
PA – Yale University School of Medicine

CERTIFICATIONS:
NCCPA Certified

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV, Primary Medical Care

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available by appointment

Tina Celenza, PA-C, MPH

Physician Assistant

PROFESSIONAL EDUCATION:
PA – The George Washington University

CERTIFICATIONS:
NCCPA Certified – Physician’s Assistant
AAHIVM Certified – HIV Medicine

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV, Primary Medical Care, Primary Gynecological Care, Transgender Care

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available by appointment

Megan Dieterich, PA, MPH

Physician Assistant

PA - Yale

CERTIFICATIONS:
NCCPA

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV, Primary Medical Care

APPOINTMENT AVAILABILITY:
Max Robinson Center – available for walk-in (CALL IN ADVANCE)
Max Robinson Center – limited availability for primary care
Elizabeth Taylor Medical Center – limited availability for primary care

Richard Elion, MD

Clinical Research Director

PROFESSIONAL EDUCATION:
MD – Temple University School of Medicine

RESIDENCY:
Family Practice – Duke University Medical Center

LANGUAGES SPOKEN:
English, Spanish

CLIENT SPECIALTIES:
HIV, Primary Medical Care

FACULTY APPOINTMENTS:
Associate Clinical Professor of Internal Medicine at George Washington University

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – limited availability by appointment
Max Robinson Center – limited availability by appointment

Deborah Goldstein, MD

Infectious Diseases Physician

PROFESSIONAL EDUCATION:
MD – University of Chicago

RESIDENCY:
Internal Medicine, Georgetown University
 
FELLOWSHIP:
Infectious Diseases, Georgetown University

CERTIFICATIONS:
ABIM Certified – Internal Medicine

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV, Hepatitis C, Hepatitis B, Primary Medical Care

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available by appointment

Sarah Henn, MD, MPH

Elizabeth Taylor Medical Center Medical Director

PROFESSIONAL EDUCATION:
MD – University of Virginia School of Medicine

RESIDENCY:
Internal Medicine – University of Virginia

FELLOWSHIP:
Infectious Disease – University of Maryland

CERTIFICATION:
ABIM Certified – Internal Medicine
ABIM Certified – Infectious Disease

LANGUAGES SPOKEN:
English, German

CLIENT SPECIALTIES:
HIV, Hepatitis C, Hepatitis B

FACULTY APPOINTMENTS:
Assistant Clinical Professor, The George Washington University
Assistant Clinical Professor, Georgetown University

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available by appointment

Stephanie Letourneau, MD

Family Practice Physician

PROFESSIONAL EDUCATION:
MD – McGill University

RESIDENCY:
Family Medicine – Montreal University

CERTIFICATIONS:
CFPC – Family Practice

LANGUAGES SPOKEN:
English, French, Spanish

CLIENT SPECIALTIES:
Primary Medical Care

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available by appointment

Barbara R. Lewis, PA-C

Physician Assistant

MEDICAL TRAINING AND EDUCATION:
PA – Howard University

CERTIFICATIONS:
NCCPA Certified – Physician’s Assistant
AAHIVM Certified – HIV Medicine

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV, Primary Medical Care, Primary Gynecological Care & Transgender Care

FACULTY APPOINTMENTS:
The George Washington University

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available by appointment

Lynsay MacLaren, PA, MPH

Physician Assistant

PROFESSIONAL EDUCATION:
PA – University of Colorado

CERTIFICATIONS:
NCCPA

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV, Primary Medical Care, Transgender Care

APPOINTMENT AVAILABILITY:
Max Robinson Center – available for walk-in (CALL IN ADVANCE)
Max Robinson Center – limited availability for primary care
Elizabeth Taylor Medical Center – limited availability for primary care

Siham Mahgoub, MD

Max Robinson Center Medical Director

PROFESSIONAL EDUCATION:
MD – University of Khartoum

RESIDENCY:
Internal Medicine – Beth Israel Medical Center, NY

FELLOWSHIP:
Infectious Disease – St. Vincent’s Catholic Medical Center, NY

CERTIFICATION:
ABIM Certified – Internal Medicine
ABIM Certified – Infectious Disease

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV, Hepatitis C, Hepatitis B, Primary Medical Care

APPOINTMENT AVAILABILITY:
Max Robinson Center – available by appointment

Matty Mathivannan, MD

Internal Medicine Physician

PROFESSIONAL EDUCATION:
MD – Saint George’s University School of Medicine

RESIDENCY:
Internal Medicine – Albany Medical Center Hospital

CERTIFICATION:
ABIM Certified – Internal Medicine

LANGUAGES SPOKEN:
English, Singhalese

CLIENT SPECIALTIES:
HIV. Primary Medical Care

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available by appointment
Max Robinson Center – available by appointment

Deborah Smith, MD

Gynecologist

PROFESSIONAL EDUCATION:
MD – Howard University

RESIDENCY:
Obstetrics and Gynecology – Howard University Hospital

CERTIFICATIONS:
ABOG Certified – Obstetrics and Gynecology
 
LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
Gynecological Services

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – limited availability by appointment
Max Robinson Center – limited availability by appointment

Karidee Thomas, PA, MPH

Physician Assistant

PROFESSIONAL EDUCATION:
PA – The George Washington University

CERTIFICATIONS:
NCCPA

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV, Primary Medical Care

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available daily for walk-in (CALL IN ADVANCE)
Elizabeth Taylor Medical Center – limited availability for primary care

Mary Toth, DNP, FNP-BC

Nurse Practitioner

PROFESSIONAL EDUCATION:
Doctorate of Nursing Practice:  Wright State University and The University of Toledo
Masters of Science in Nursing – Family Nurse Practitioner: Wright State University
Masters as Clinical Nurse Specialist – Adult Health: Wright State University
Bachelor in Nursing from University of Pittsburgh
Bachelor in Business Administration from University of Pittsburgh

CERTIFICATIONS:
ANCC Family Nurse Practitioner

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
Women’s Health, Primary Medical Care, Medical Aesthetics

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center and Max Robinson

Clinician Volunteer Directory

Joseph P. Casazza MD, PhD

Infectious Diseases Physician

PROFESSIONAL EDUCATION:
MD – University of Texas Southwestern Medical Center

RESIDENCY:
Internal Medicine – University of Texas Southwestern Medical Center

FELLOWSHIP:
Infectious Disease – University of Texas Southwestern Medical Center

CERTIFICATIONS:
ABIM Certified – Internal Medicine
ABIM Certified – Infectious Disease

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – limited availability by appointment

Thomas Croghan, MD

Internal Medicine Physician & Rheumatologist 

PROFESSIONAL EDUCATION:
MD – West Virginia University School of Medicine

RESIDENCY:
Internal Medicine – Johns Hopkins University Hospital
 
FELLOWSHIP:
Rheumatology, University of North Carolina at Chapel Hill
 
CERTIFICATIONS:
ABIM Certified – Internal Medicine
 
LANGUAGES SPOKEN:
English
 
CLIENT SPECIALTIES:
Primary Medical Care

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – Wednesdays 4 pm–7 pm

Andrea Nichelle James MD

Infectious Diseases Physician

PROFESSIONAL EDUCATION:
MD - Albany Medical College

RESIDENCY:
Internal Medicine – Georgetown University Medical Center

FELLOWSHIP:
Infectious Disease – Georgetown University Medical Center

CERTIFICATIONS:
ABIM Certified – Infectious Disease

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – limited availability by appointment

Teresa Jones, MD

Internal Medicine Physician & Endocrinologist

PROFESSIONAL EDUCATION:
MD - Northwestern University
 
RESIDENCY:
Internal Medicine – University of Minnesota
 
FELLOWSHIP:
Infectious Disease – National Institutes of Health

CERTIFICATIONS:
ABIM Certified – Internal Medicine
ABIM Certified – Endocrinology / Metabolism

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
Primary Medical Care, Endocrinology

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – limited availability by appointment

Katherine A. Laessig, MD

Infectious Diseases Physician

PROFESSIONAL EDUCATION:
MD - University of Maryland School of Medicine

RESIDENCY:
Internal Medicine – The George Washington University Medical Center

FELLOWSHIP:
Infectious Disease – The George Washington University Medical Center

CERTIFICATIONS:
ABIM Certified –Infectious Disease
National Board of Medical Examiners Certified

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
HIV

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – limited availability by appointment

Susan F. Lelacheur PA-C, DrPH

Physician Assistant

PROFESSIONAL EDUCATION:
PA – Howard University

CERTIFICATIONS:
NCCPA – Physician’s Assistant

LANGUAGES SPOKEN:
English, Medical Spanish

CLIENT SPECIALTIES:
HIV

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center - Monday afternoon

Howard Piller, APRN

Family Nurse Practitioner

PROFESSIONAL EDUCATION:
BSN – Marymount University
MSN – Mississippi University for Women

CERTIFICATIONS:
ANCC Certified – Family Nurse Practitioner

LANGUAGES SPOKEN:
English

CLIENT SPECIALTIES:
Primary Medical Care, HIV

APPOINTMENT AVAILABILITY:
Elizabeth Taylor Medical Center – available by appointment