Margaret Kathleen Siska, MD
Pediatric Endocrinology Physician · Bozeman, MT
Margaret Kathleen Siska, MD is a pediatric endocrinology physician with a practice address in Bozeman, Montana, and NPI 1013195122, issued on Jan 31, 2008. Check the license on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Margaret Kathleen Siska
- Credential
- MD
- Primary taxonomy
- Pediatric Endocrinology Physician 2080P0205X
- License number
- 2013030082 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1819 S 22ND Ave Ste 100, Bozeman, MT 59718
- Phone
- (406) 898-1200
- Enumerated
- Jan 31, 2008
- Record last updated
- Mar 7, 2022
- Medicare enrollment
- Enrolled (PECOS I20250210002570); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1819 S 22ND Ave Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Claire Kenamore, MDPediatrics Physician1922110352
- Devin Mock, NPNurse Practitioner1447825534
- Amy SteinbuechlerNurse Practitioner1841141579
- Timothy Strigenz, M.D.Pain Medicine (Anesthesiology) Physician1801991682
Verify Margaret Kathleen Siska in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $110.57
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 931 providers of this specialty with any payment received $4,382.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Billings ClinicCody, WY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pediatric Endocrinology Physician providers in Montana
There are 6 pediatric endocrinology physician records in Montana.
Other pediatric endocrinology physician records in Montana
- Marwan Bakhach, M.DGreat Falls, MT1912347691
- Nathan Bingham, M.D., PHD.Kalispell, MT1922279512
- Alan Rice, MDKalispell, MT1326026048
- Colleen Wood, MDBillings, MT1528114139
- Sharon Zemel, M.D.Billings, MT1417990771
Common questions
What is Margaret Kathleen Siska, MD's NPI number?
Margaret Kathleen Siska, MD's National Provider Identifier (NPI) is 1013195122, issued on Jan 31, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Kathleen Siska, MD located?
The NPPES record lists a practice address at 1819 S 22ND Ave Ste 100, Bozeman, MT, 59718. Phone: (406) 898-1200. Providers update this record themselves, so call before visiting.
How can I verify Margaret Kathleen Siska, MD's license?
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.
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.