Peter Joseph Sikoski, DO
General Practice Physician · Bozeman, MT
Peter Joseph Sikoski, DO is a general practice physician with a practice address in Bozeman, Montana, and NPI 1437143153, issued on Sep 8, 2005. Check the license (Montana 9947, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Peter Joseph Sikoski
- Credential
- DO
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 9947 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1104 E Main St, Bozeman, MT 59715
- Phone
- (406) 587-3788
- Enumerated
- Sep 8, 2005
- Record last updated
- May 3, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (406) 587-3922
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 36 in Montana → Look up another NPI →
Also registered at 1104 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Crootof, PA-CPhysician Assistant1154879054
Verify Peter Joseph Sikoski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 9947Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average general practice physician in 2024
59 Medicare Part D claims for 30 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Peter Joseph Sikoski among 36 general practice physician records in Montana
Peter Joseph Sikoski, DO is one of 36 general practice physician records with a practice address in Montana. 47% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 47% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2017 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in Montana
There are 36 general practice physician records in Montana.
All 36 in Montana → Every provider in Bozeman → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Jeffrey Daniels, MDBig Sky, MT 597161942224779
- Paul Menkhaus, MDBozeman, MT 597181154052355
- Christian Mullins, M.D.Bozeman, MT 597181073583654
- John Waller, MDBozeman, MT 597181598873440
- John Moore, MDAnaconda, MT 597111861587818
- Jessie Kautzman, MDButte, MT 597011366424558
- Molly Biehl, DOSheridan, MT 597491902079965
- Denise Kelley, MDMissoula, MT 598011568469765
Common questions
What is Peter Joseph Sikoski, DO's NPI number?
Peter Joseph Sikoski, DO's National Provider Identifier (NPI) is 1437143153, issued on Sep 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Peter Joseph Sikoski, DO located?
The NPPES record lists a practice address at 1104 E Main St, Bozeman, MT, 59715. Phone: (406) 587-3788. Providers update this record themselves, so call before visiting.
How can I verify Peter Joseph Sikoski, DO's license?
NPPES lists Montana license number 9947, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter Joseph Sikoski, DO prescribe under Medicare Part D?
In 2024, Peter Joseph Sikoski, DO had 59 Medicare Part D claims for 30 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.