Doctor profile · Federal record

Dr. Grzegorz Cieslewicz, M.D.

Pulmonary Disease Physician (CMS: Critical Care (Intensivists)) · Critical Care Medicine (Internal Medicine) Physician · Anaconda, MT

  • NPI 1780634055
  • Accepts Medicare
  • 38 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
401 W Pennsylvania Ave
Anaconda, MT 597111999
(406) 563-8500
fax (406) 563-8694
Additional location
350 Heritage Way Ste 2100
Kalispell, MT 599013167
(406) 257-8992
fax (406) 257-8996
Additional location
9060 E Via Linda Ste 250
Scottsdale, AZ 852585425
(480) 614-2000
fax (480) 614-1751

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
July 29, 2024
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
Arizona #32473
Medicaid
AZ #867955

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780634055. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
649
Distinct HCPCS
5
Medicare allowed
$84,976
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 283 133 $115
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 152 112 $77
99291 Critical care, first 30-74 minutes 135 57 $211
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 67 66 $169
99156 Use of a drug to induce depression of consciousness by physician not performing a procedure (5 years or older), initial 15 minutes 12 12 $73

In context: peer comparison

Among 1 peers in this city , average services per provider: 129. This provider delivers 5.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Grzegorz Cieslewicz's medical specialty?
Dr. Grzegorz Cieslewicz practices Pulmonary Disease Physician in Anaconda, MT.
Where does Dr. Grzegorz Cieslewicz practice?
Dr. Grzegorz Cieslewicz practices at 401 W Pennsylvania Ave, Anaconda, MT 597111999. Office phone: 4065638500.
What is Dr. Grzegorz Cieslewicz's NPI?
Dr. Grzegorz Cieslewicz's National Provider Identifier (NPI) is 1780634055, issued by NPPES.
Does Dr. Grzegorz Cieslewicz accept Medicare assignment?
Yes. Dr. Grzegorz Cieslewicz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Grzegorz Cieslewicz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.