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

Dr. Tristan Michael Flack, DO

Individual provider Internal Medicine Physician · NPI 1750720074

Dr. Tristan Michael Flack, DO practises Internal Medicine in Baltimore, Maryland. Graduated from West Virginia School of Osteopathic Medicine in 2013, 13 years ago. Practices with Greater Baltimore Medical Center Inc, a 348-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
13
Trained at
West Virginia School of Osteopathic Medicine
Licensed in
NY
In the registry since
2013
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

6701 N Charles St
Baltimore, MD 21204
Phone: (443) 849-2682
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 284245 (NY)

Record details

NPI number1750720074
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 19, 2013
Last updated in NPPESAugust 30, 2018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolWEST VIRGINIA SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 2013 (13 years in practice)
Group practice Greater Baltimore Medical Center Inc — 348 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations9 on file with Medicare

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 patients264
Services billed 898 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Greater Baltimore Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 348 clinicians in the practice; 12 are shown here.

Other providers in Baltimore