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

Dr. Isaac Saul Lopez, MD

Individual provider Internal Medicine Physician · NPI 1831694785

Dr. Isaac Saul Lopez, MD is a Hospitalist in Portland, Maine. Graduated from Warren Alpert Medical School of Brown University in 2018, 8 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Alaska and Maine.

Years since qualifying
8
Trained at
Warren Alpert Medical School of Brown University
Licensed in
AK, ME
In the registry since
2018
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

22 Bramhall St
Portland, ME 04102-3175
Phone: (207) 662-4618
Show map & directions

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

Additional practice locations (1)

  • 181 Main St, Norway, ME 04268-5664 — (207) 743-5933

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD26881 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD26881 (ME)
Hospitalist Physician Taxonomy 208M00000X · Licence 175787 (AK)

Record details

NPI number1831694785
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2018
Last updated in NPPESMarch 19, 2025
Certification dateMarch 19, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolWARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY
Graduated 2018 (8 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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