Doctor profile · Federal record

Dr. Chad Engan, MD FACS

Surgery Physician (CMS: General Surgery) · Great Falls, MT

  • NPI 1750434676
  • Accepts Medicare
  • MIPS 88.2 / 100 · 2023
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
400 13Th Ave S Ste 102
Great Falls, MT 594054300
(406) 731-8888
fax (406) 731-8318
Mailing address
400 13Th Ave S, Suite 102 Great Falls Surgical Associates
Great Falls, MT 594054300

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
May 21, 2024
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
208600000X — NUCC code
State license (1)
Montana #10335
Medicaid
MT #0000095421

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1750434676. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
232
Distinct HCPCS
10
Medicare allowed
$31,920
HCPCS Description Services Patients Avg allowed
99203 New patient office or other outpatient visit, 30-44 minutes 50 50 $113
99213 Established patient office or other outpatient visit, 20-29 minutes 41 36 $91
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 40 21 $50
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 21 17 $79
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 21 21 $119
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 13 13 $83
47562 Removal of gallbladder using an endoscope 12 12 $641
99212 Established patient office or other outpatient visit, 10-19 minutes 12 12 $57
49650 Repair of groin hernia using an endoscope 11 11 $460
99204 New patient office or other outpatient visit, 45-59 minutes 11 11 $168

In context: peer comparison

Among 3 peers in this city , average services per provider: 30. This provider delivers 7.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$152
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
INTUITIVE SURGICAL, INC. 1 $84.29
Ethicon US, LLC 1 $43.73
Medtronic, Inc. 1 $24.25

By nature of payment

Food and Beverage
$152

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
86
Patients
83
Total drug cost
$271
Drug Type Claims Patients Total cost
Tramadol Hcl Generic 30 29 $100
Meloxicam Generic 24 23 $42
Gabapentin Generic 20 19 $45
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 12 12 $84

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Chad Engan's medical specialty?
Dr. Chad Engan practices Surgery Physician in Great Falls, MT.
Where does Dr. Chad Engan practice?
Dr. Chad Engan practices at 400 13Th Ave S Ste 102, Great Falls, MT 594054300. Office phone: 4067318888.
What is Dr. Chad Engan's NPI?
Dr. Chad Engan's National Provider Identifier (NPI) is 1750434676, issued by NPPES.
Does Dr. Chad Engan accept Medicare assignment?
Yes. Dr. Chad Engan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chad Engan commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99203); Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.