Doctor profile · Federal record

Dr. Tsun Ku

Infectious Disease Physician (CMS: Infectious Disease) · Billings, MT

  • NPI 1659584738
  • Accepts Medicare
  • MIPS 92.8 / 100 · 2023
  • 20 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
801 N 29Th St
Billings, MT 591010905
(406) 238-2500
Additional location
3235 Mill Vista RD
Highlands Ranch, CO 801292440
(303) 876-8320
fax (303) 876-8325
Mailing address
Po Box 35100
Billings, MT 591075100

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
February 28, 2022
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207RI0200X — NUCC code
State license (1)
Colorado #40605
Medicaid
CO #66658527

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659584738. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
38
Distinct HCPCS
3
Medicare allowed
$4,555
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 14 12 $119
99213 Established patient office or other outpatient visit, 20-29 minutes 12 11 $66
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 12 12 $174

In context: peer comparison

Among 5 peers in Billings Infectious Disease Physician, average services per provider: 50. This provider delivers 0.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Tsun Ku's medical specialty?
Dr. Tsun Ku practices Infectious Disease Physician in Billings, MT.
Where does Dr. Tsun Ku practice?
Dr. Tsun Ku practices at 801 N 29Th St, Billings, MT 591010905. Office phone: 4062382500.
What is Dr. Tsun Ku's NPI?
Dr. Tsun Ku's National Provider Identifier (NPI) is 1659584738, issued by NPPES.
Does Dr. Tsun Ku accept Medicare assignment?
Yes. Dr. Tsun Ku accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tsun Ku commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99213); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.