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

Dr. Howard Mark Hack, MD

Individual provider Gastroenterology Physician · NPI 1952483786

Dr. Howard Mark Hack, MD is a Gastroenterology in Grand Forks, North Dakota. Graduated from Washington University School of Medicine in 1988, 38 years ago. Practices with Arkansas Health Group, a 645-clinician group and accepts Medicare assignment. Licensed in North Dakota and Wisconsin.

Years since qualifying
38
Trained at
Washington University School of Medicine
Licensed in
ND, WI
In the registry since
2006
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

1300 S Columbia Rd
Grand Forks, ND 58201-4012
Phone: (701) 780-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 13875 (ND)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 30900 (WI)

Record details

NPI number1952483786
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 20, 2006
Last updated in NPPESMay 5, 2017

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Arkansas Health Group — 645 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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