Grzegorz Cieslewicz, M.D.
NPI 1780634055 · Pulmonary Disease Physician · Anaconda, MT
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grzegorz Cieslewicz, M.D. is a Pulmonary Disease Physician provider in Anaconda, MT (NPI 1780634055).
Provider details
- NPI number
- 1780634055
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 32473 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
398 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 189 | $205 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 179 | $114 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 30 | $166 |
Typical Medicare-allowed amounts for these services range $114–$205 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- 9060 E Via Linda Ste 250Scottsdale, AZ 85258-5425Phone: (480) 614-2000Fax: (480) 614-1751
- 350 Heritage Way Ste 2100Kalispell, MT 59901-3167Phone: (406) 257-8992Fax: (406) 257-8996
Registry dates
- Enumerated
- 2006-05-10
- Last updated
- 2024-07-29
- Certified
- 2024-07-29
Frequently asked questions
- What is Grzegorz Cieslewicz's NPI number?
- Grzegorz Cieslewicz's National Provider Identifier (NPI) is 1780634055, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grzegorz Cieslewicz's specialty?
- Grzegorz Cieslewicz is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Grzegorz Cieslewicz located?
- Grzegorz Cieslewicz's practice location on file with NPPES is 401 W Pennsylvania Ave, Anaconda, MT 59711-1999.
- What is Grzegorz Cieslewicz's phone number?
- The practice phone number listed in the NPPES registry for Grzegorz Cieslewicz is (406) 563-8500.
- Does Grzegorz Cieslewicz accept Medicare?
- Grzegorz Cieslewicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grzegorz Cieslewicz's NPI active?
- Yes — Grzegorz Cieslewicz's NPI (1780634055) is active in the NPPES registry as of the last update on 2024-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.