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

Dr. Marichu Theresa A. Matas, MD

Individual provider Hospitalist Physician · NPI 1558526228

Dr. Marichu Theresa A. Matas, MD is a Hospitalist in Rockville, Maryland. Qualified in 1990, 36 years ago. Practices with Galen Inpatient Physicians PC, a 1,031-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
36
Licensed in
MD
In the registry since
2008
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

10110 Molecular Dr Ste 206
Rockville, MD 20850-7542
Phone: (301) 279-2779
Fax: (240) 403-0190
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0069148 (MD)
Hospitalist Physician Taxonomy 208M00000X · Licence D69148 (MD)

Record details

NPI number1558526228
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 22, 2008
Last updated in NPPESAugust 12, 2025
Certification dateAugust 12, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Galen Inpatient Physicians Pc — 1031 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Rockville