Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Marissa Amelia Watts, MD

Individual provider Internal Medicine Physician · NPI 1720345358

Dr. Marissa Amelia Watts, MD is an Internal Medicine in Columbia, Maryland. Graduated from George Washington University School of Medicine in 2012, 14 years ago. Practices with Usacs Integrated Acute Care Services of Maryland LLC, a 182-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Maryland and Michigan.

Years since qualifying
14
Trained at
George Washington University School of Medicine
Licensed in
MD, MI
In the registry since
2012
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

5755 Cedar Ln
Columbia, MD 21044-2912
Phone: (410) 720-8695
Fax: (410) 720-8580
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2799 W Grand Blvd, Detroit, MI 48202-2608 — (313) 916-9100

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D80923 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301101114 (MI)

Record details

NPI number1720345358
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 20, 2012
Last updated in NPPESJanuary 15, 2025
Certification dateJanuary 15, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice Usacs Integrated Acute Care Services Of Maryland Llc — 182 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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