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

Mark T Welch, MD

Individual provider Internal Medicine Physician · NPI 1164561619

Mark T Welch, MD is an Internal Medicine in Kalispell, Montana. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1989, 37 years ago. Practices with St Johns Lutheran Hospital Inc, a 35-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
37
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
MT
In the registry since
2007
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

310 Sunnyview Ln
Kalispell, MT 59901-3129
Phone: (406) 751-5310
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 8817 (MT)

Record details

NPI number1164561619
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 5, 2007
Last updated in NPPESNovember 27, 2023
Certification dateJune 26, 2020
Mailing address310 Sunnyview Ln, Kalispell, MT 59901-3129

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1989 (37 years in practice)
Group practice St Johns Lutheran Hospital Inc — 35 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Kalispell