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

Dr. Brian John Grahan, MD

Individual provider Internal Medicine Physician · NPI 1770809873

Dr. Brian John Grahan, MD practises Addiction Medicine in Minneapolis, Minnesota. Graduated from University of Wisconsin School of Medicine in 2010, 16 years ago. Practices with Hennepin Healthcare System Inc, a 903-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Minnesota.

Years since qualifying
16
Trained at
University of Wisconsin School of Medicine
Licensed in
MN
In the registry since
2010
Specialties on file
2
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

914 S 8th St
Minneapolis, MN 55404-1204
Phone: (612) 873-5500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction Medicine (Internal Medicine) Physician (primary) Taxonomy 207RA0401X · Licence 56891 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 56891 (MN)

Record details

NPI number1770809873
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 14, 2010
Last updated in NPPESOctober 2, 2025
Certification dateOctober 2, 2025

Medicare enrollment

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

Medicare specialtyADDICTION MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Hennepin Healthcare System Inc — 903 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients29
Services billed 156 a service is one billed item, such as a visit, a test or a procedure
Average patient age51

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 Hennepin Healthcare System Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 903 clinicians in the practice; 12 are shown here.

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