Doctor profile · Federal record

Dr. Thomas Flass, MD

Pediatric Gastroenterology Physician · Pediatric Gastroenterology Physician · Kalispell, MT

  • NPI 1770639387
  • 19 yrs on file
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
195 Commons Loop Ste D
Kalispell, MT 599011912
(406) 501-6570
Additional location
202 Conway Dr Ste 200
Kalispell, MT 599013153
(844) 215-7969
fax (406) 758-7080
Mailing address
234 Terrace RD
Kalispell, MT 599017432

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
December 13, 2025
Specialty taxonomy
2080P0206X — NUCC code
State licenses (2)
Montana #11730 · Arizona #79324

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770639387. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$28
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ACADIA Pharmaceuticals Inc 1 $28.05

By nature of payment

Food and Beverage
$28

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Flass's medical specialty?
Dr. Thomas Flass practices Pediatric Gastroenterology Physician in Kalispell, MT.
Where does Dr. Thomas Flass practice?
Dr. Thomas Flass practices at 195 Commons Loop Ste D, Kalispell, MT 599011912. Office phone: 4065016570.
What is Dr. Thomas Flass's NPI?
Dr. Thomas Flass's National Provider Identifier (NPI) is 1770639387, issued by NPPES.