Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Teresa Pilar Del Rio Montesinos, MD

Individual provider Hepatology Physician · NPI 1154979235

Teresa Pilar Del Rio Montesinos, MD practises Gastroenterology in Mayaguez, Puerto Rico. Qualified in 2020, 6 years ago. Practices with Virginia Mason Medical Center, a 867-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Puerto Rico and Washington.

Years since qualifying
6
Licensed in
PR, WA
In the registry since
2019
Specialties on file
4
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 may be wrong

The ZIP code does not match the city and state on this record. Call before visiting.

55 Calle Virginia
Mayaguez, PR 00680-3820
Phone: (787) 834-6985

Additional practice locations (1)

  • 1100 9th Ave, Seattle, WA 98101-2756 — (206) 223-2319

Specialties & licences

Hepatology Physician (primary) Taxonomy 207RI0008X · Licence 23834 (PR)
Hepatology Physician Taxonomy 207RI0008X · Licence MD61409664 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD.MD.61409664 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 23834 (PR)

Record details

NPI number1154979235
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 31, 2019
Last updated in NPPESJanuary 14, 2026
Certification dateJanuary 14, 2026

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesHOSPITALIST, INTERNAL MEDICINE
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Virginia Mason Medical Center — 867 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients136
Services billed 255 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Virginia Mason Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 867 clinicians in the practice; 12 are shown here.