Home / Our Services / Laboratory Services

Laboratory Services

Laboratory tests play a critical role in ensuring your diagnosis is accurate and your treatment is appropriate. Our laboratory network offers unmatched expertise and experience. Our staff is comprised of dedicated professionals whose primary goal is to provide accurate and timely analysis to the caregiver and to assist in the diagnosis and treatment of the patient.

We accept all insurances with the exception of Blue Chip Senior. For Pathology services, we accept all insurances. If you have any specific customer service questions, please call us at (401) 456-2038.

The Laboratory Network of Roger Williams Medical Center is accredited or licensed by:

College of American Pathologists

American Association of Blood Banks

Centers for Medicare and Medicaid Services CLIA Certificate of Accreditation

Centers for Medicare and Medicaid Services CLIA Certificate of Compliance

Joint Commission on Accreditation of Healthcare Organizations

The Rhode Island Department of Health Laboratory Response Network

If you have any questions or concerns about laboratory services please call 401-456-2038.




Ocean State Urgent Care – Barrington

310 Maple Ave.

Hours: Monday-Friday, 8 a.m.-4:30 p.m.

Saturday and Sunday, 8 a.m.-5 p.m.




Family Health Services

191 MacArthur Blvd.

Hours: Monday, Wednesday, Thursday,  8:30 a.m.-5 p.m.;

Tuesday, noon-8 p.m., Friday, 8:30am - 4pm

Closed: 12:30pm-1pm



Centre of New England Primary/Urgent Care

775 Centre of New England Blvd.

Hours: Monday-Friday, 10am - 2pm




James Cardi, MD

673 Atwood Ave.

Hours: Monday, Tuesday, Thursday, 7 a.m.-3:30 p.m.;

Wednesday, Friday 8 a.m.-noon

Closed: 12:30pm - 1pm



Family Health Services

1090 Cranston St.

Hours: Monday-Tuesday, 8 a.m.-8 p.m.

Wednesday-Friday, 8:30 a.m.-5 p.m.

Every other Saturday 8:30 a.m.-noon



Knightsville Medical Building

1681 Cranston St., Ste. F

Hours: Monday-Friday, 7 a.m.-4:30 p.m.

Saturday, 7 a.m.-11 a.m.



Cranston Medical Associates

725 Reservoir Ave., Ste. 6

Hours: Monday-Friday, 7 a.m.-5 p.m.

Saturday 7 a.m.-11 a.m.



Dr. Mazza Lab

395 Atwood Ave.

Hours: Monday-Friday, 8:30am-5pm

Closed: 12-12:30pm




Cumberland Medical Center

2138 Mendon Rd., Ste. 103B

Hours: Monday-Friday, 8 a.m.-4:30 p.m.

Closed: 12:30pm-1pm



Family Internal Medicine

Bassam Khabbaz, MD

2295 Diamond Hill Rd.

Hours: Wednesday, Saturday, 7 a.m.-noon



Cumberland Medical Center

106 Nate Whipple Hwy.

Hours: Monday-Friday, 7 a.m.-5 p.m.




Dermatology Associates

1351 South County Trail, Building 3, Ste. 302

Hours: Monday-Thursday, 7:30 a.m.-4:30 p.m.

Friday, 7:30 a.m.-1 p.m.

Closed: 12:30pm-1pm




CharterCARE Medical Associates

Vincent Armenio, MD

1 Office Parkway, 2nd floor

Hours: Monday-Friday, 7:30 a.m.-4 p.m.



East Providence Medical Center

525 Taunton Ave.

Hours: Monday-Friday, 8 a.m.-4:30 p.m.

Saturday-Sunday, 9 a.m.-2:30 p.m.



East Providence Primary/Urgent Care

Constantine Vafidis, MD

684 Warren Ave.

Hours: Monday-Friday, 9 a.m.-7 p.m.

Saturday-Sunday, 9 a.m.-2 p.m.



CharterCare Medical Associates

Anthony Rocha, MD

387 Waterman Ave.

Hours: Monday-Thursday 8 a.m.-5p.m.

Closed: 12pm-1pm




CharterCARE Medical Associates

Family Treatment Center

466 Putnam Pike, Rear Entrance

Hours: Monday-Friday, 8 a.m.-4:30 p.m.




Atwood Medical Lab

1524 Atwood Ave., Ste. 138

Hours: Monday-Friday, 7 a.m.-5 p.m.

Saturday, 7 a.m.-11 a.m.




CharterCare Medical Associates, Blackstone

Hugo Yamada, MD

6 Blackstone Valley Place, Ste. 502

Hours: Monday-Thursday, 8 a.m.-6 p.m.

Friday, 8 a.m.-2 p.m.

Every 3rd Satursday, 8 a.m.-2 p.m.




North Providence Primary Care

The Grace Building – Lower Level

1830 Mineral Spring Ave.

Hours: Monday,Thursday, 8 a.m.-6 p.m.

Tuesday, Wednesday, Friday, 8 a.m.-5 p.m.

Saturday, 8 a.m.-12:30 p.m.



Our Lady of Fatima Hospital

200 High Service Ave.

Hours: Monday-Friday, 7a.m.-4 p.m.

Saturday, 7 a.m.-11 a.m.



Ocean State/North Providence Urgent Care

1637 Mineral Spring Ave., Suite 111B

Hours: Monday-Friday, 8a.m.-5 p.m.

Saturday, 8 a.m.-2 p.m.



Claude Younes, MD

1300 Mineral Spring Avenue

Hours: Monday, Tuesday, Thursday, 9 a.m.-4 p.m. 

Wednesday, 3 p.m.-60 p.m.

Friday, 9 a.m. - 1 p.m.




St. Joseph Health Center

249 Roosevelt Ave.

Hours: Monday-Friday, 8 a.m.-4 p.m.




Emilio Rodriguez-Peris, MD

Hindle Bldg., 655 Broad St., 2nd FL

Hours: Monday-Friday, 8 a.m.-4:30 p.m.



Nardone Medical

1070 North Main St.

Hours: Monday-Friday, 8:30 a.m.-6 p.m.

Every other Saturday, 8:30 a.m.-1 p.m.



Roger Williams Medical Center

Diagnostic Wing, 825 Chalkstone Ave.

Hours: Monday-Friday, 7 a.m.-4 p.m.

Saturday, 9 a.m.-11 a.m.



St. Joseph Health Center

21 Peace St.

Hours: Monday-Friday, 8 a.m.-4 p.m.




David Leibowitz, DO

851 Main St.

Hours: Monday-Friday, 6:30 a.m.-5 p.m.

Saturday, 7 a.m.-11 a.m.




Family Health Services of Warwick

Everett C. Wilcox Center, 226 Buttonwoods Ave.

Hours: Monday-Tuesday, Thursday-Friday 8 a.m.-5 p.m.

Wednesday, 8 a.m.-8 p.m.



Ocean State Primary Care, East Greenwich

4300 Post Road

Hours: Monday-Friday, 8 a.m.-4:30 p.m.



To insure that our clients receive accurate and timely results, our laboratory network offers short turnaround times and unmatched expertise and experience.


Exceptional Expertise

As a hospital-based program and a teaching affiliate of Boston University School of Medicine, the network provides:

Comprehensive chemistry, toxicology, hematology, microbiology, immunology, histology, cytology, and transfusion services, plus one of the region's largest menus of esoteric tests

Oversight by board-certified pathologists Clinical expertise in subspecialties, including: anatomic and clinical pathology, dermatopathology, hematopathology, immunopathology cytopathology, gastrointestinal pathology, transfusion medicine, and surgical pathology

State-of-the-art equipment, including conventional and molecular technology, clinical chemistry automation, and an advanced networking computer system.


A Track Record of Excellence

The Laboratory Network of Roger Williams Medical Center offers clients more than two decades of successful outreach experience:

We perform over 600,000 clinical and surgical pathology procedures annually

We provide services to surgical pathology clients, including nursing homes, assisted living communities, group homes, surgi-centers, senior centers, universities, colleges, walk-in treatment centers, physician offices, in-home patients, and other hospitals

A Commitment to Service

We customize our program to meet the specific needs of our clients, including the following services:


Remote reporting to client sites

Phlebotomy and testing services tailored to meet client needs

Courier specimen pickup and supply delivery

In addition, the laboratory network directly bills most third-party payers and can develop fee-for-service rate structures for facility billing.


To insure that clients get the results they need, we offer:

Short turnaround times

Rapid response to STAT results and panic values

Timely courier specimen pickup and supply delivery

Skilled staff trained in infection control practices

Full-service, acute care laboratory staffed 24 hours per day

Laboratory clinicians available to answer technical and procedural questions

Account representatives available to meet with clients regularly

Laboratory Services

Phlebotomy Services


Scheduled to meet the needs of your practice

STAT lab available 24 hours per day, seven days per week

Training for office staff

Results Reporting


Results printed directly to your facility two or more times per day

STAT results and panic values are called to your nursing staff within one hour of specimen receipt

Customized requisitions provided

Internet access available for clinical and anatomical results

Availability of Electronic Medical Record for clients

Dermatopathology Tests & Services:


Immunohistochemistry menu for complex cases

Direct/indirect immunofluorescence

Mycology analysis by PAS stains of nail plate/culture

B-cell and T-cell gene rearrangement studies for lympho proliferative disorders

Clinicopathologic correlation

G.I. Services:


G.I. cytopathologic services

Routine IHC for H.Pylori

Routine AB/PAS on all esophogial and gastric biopsies

Hematopathology Texts


Flow Cytometry



B & T cell rearrangement studies


Uropathology Tests


Prostate triple stains


IHC image analysis


Our Primary Reference Laboratory


We utilize Mayo Medical Laboratories for its primary esoteric testing needs. Mayo Medical Laboratories, the reference laboratory for Mayo Clinic, is a distinctive leader in the field of esoteric testing and offers consultations with its physicians and scientists. This collaboration strengthens our efforts to provide exceptional laboratory services and patient care to the regions we serve.


All of our staff pathologists are board certified in Anatomic Pathology and have completed fellowships at internationally renowned institutions. Each of our pathologists sub-specializes in areas like Hematopathology, Dermatopathology, Uropathology, Gastrointestinal Pathology, Cytology and Surgical Pathology. In addition, our pathologists are dedicated academics, working as adjunct professors and heading fellowship programs through the Boston University School of Medicine. Our pathologists and their sub-specialties are as follows:


Mirela Stancu, M.D, Pathologist-in-Chief

Gastrointestinal Pathology

Dr. Stancu is a graduate of Carol Davila University of Medicine and Pharmacy in Bucharest, Romania, Dr. Stancu completed her residency at the Warren Alpert Medical School of Brown University. She completed fellowships in Gastrointestinal Pathology at Boston University, Hematopathology at Harvard University Beth Israel Deaconess Medical Center in Boston and Oncologic Surgical Pathology at MD Anderson Cancer Center in Houston, TX. Dr. Stancu is board certified in Anatomic and Clinical Pathology and Hematopathology, and specialized in Gastrointestinal, Surgical and Clinical Pathology


Catherine Breen, MD, MPH


A graduate of Emory University and Duke University School of Medicine, Dr. Breen completed her residency at Brown University and her fellowship at Roger Williams/Boston University. Dr. Breen is board-certified in Anatomic and Clinical Pathology, as well Dermatopathology. Her area of specialty is in Dermatopathology and Surgical Pathology.


Olga K. Weinberg, MD


A graduate of Vanderbilt University School of Medicine in Nashville, TN, Dr. Weinberg completed her residency and fellowships at Stanford University in Pal Alto, CA. She is board certified in Hematopathology and Anatomic Pathology.


Joseph Sweeney, MD

Transfusion Medicine

A graduate of the University College of Medicine in Galway, Ireland, Dr. Sweeney completed his residency at Bronx Municipal Hospital, Albert Einstein College of Medicine in NY and his fellowship in Medical Oncology at Roswell Park Memorial Institute in Buffalo, NY. He is board-certified in Blood Banking.


Xiaoping Zhou, MD

Gastrointestinal Pathology

A graduate of Second Military Medical University in Shanghai, China, Dr. Zhou completed his residency and fellowship at the Ohio State University Wexner Medical Center in Columbus, OH. Dr. Zhou is board certified in Anatomic and Clinical Pathology and specializes in Gastrointestinal and Surgical Pathology.


Eric Yulong Han, MD


A graduate of Wuhan Tongji Medical University in China, Dr. Han completed his residency at New York University School of Medicine and his fellowship at MD Anderson Cancer Center in Houston, TX. He is board certified in Anatomic and Clinical Pathology and specializes in Cytopathology and Surgical Pathology.


Selina Cortez, MD


Dr. Cortez is a graduate of University of the Philippines Medical School, completed Anatomic/Clinical Pathology residency at Rhode Island Hospital/Brown University. She then completed a Neuropathology fellowship at Brigham and Women's Hospital/Boston Children's Hospital, affiliated with Harvard University Medical School. She is board certified in Anatomic and Clinical Pathology as well as Neuropathology, and specializes in Surgical Pathology and Neuropathology.


Bassam Aswad, MD


A graduate of the American University of Beirut, Dr. Aswad completed a residency in Anatomic and Clinical Pathology at Eastern Virginia Graduate School of Medicine, and a fellowship in Surgical Pathology at Rhode Island Hospital/Brown University School of Medicine, where he remained on Staff for over 20 years, practicing and teaching general Surgical Pathology, Cytopathology, Immunohistochemistry, with a subspecialty focus on Pulmonary Pathology. He is board certified in Anatomic and Clinical Pathology.