Margaret Kathleen Siska, MD - Medicare Pediatrics in Bozeman, MT

Margaret Kathleen Siska, MD is a medicare enrolled "Pediatrics - Pediatric Endocrinology" physician in Bozeman, Montana. Her current practice location is 1819 S 22nd Ave Ste 100, Bozeman, Montana. You can reach out to her office (for appointments etc.) via phone at (406) 898-1200.

Margaret Kathleen Siska is licensed to practice in Missouri (license number 2013030082) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1013195122.

Contact Information

Margaret Kathleen Siska, MD
1819 S 22nd Ave Ste 100,
Bozeman, MT 59718-7070
(406) 898-1200
Not Available

Map and Direction




Physician's Profile

Full NameMargaret Kathleen Siska
GenderFemale
SpecialityPediatrics - Pediatric Endocrinology
Location1819 S 22nd Ave Ste 100, Bozeman, Montana
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1013195122
  • Provider Enumeration Date: 01/31/2008
  • Last Update Date: 03/07/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1153557798
  • Enrollment ID: I20211222002319

Medical Identifiers

Medical identifiers for Margaret Kathleen Siska such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013195122NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080P0205XPediatrics - Pediatric Endocrinology 2013030082 (Missouri)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Margaret Kathleen Siska allows following entities to bill medicare on her behalf.
Entity NameBillings Clinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326104845
PECOS PAC ID: 6002993516
Enrollment ID: O20080430000212

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Margaret Kathleen Siska is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Margaret Kathleen Siska, MD
Po Box 35100,
Billings, MT 59107-5100

Ph: (406) 238-2500
Margaret Kathleen Siska, MD
1819 S 22nd Ave Ste 100,
Bozeman, MT 59718-7070

Ph: (406) 898-1200

Reviews and Comments


Pediatrics Doctors in Bozeman, MT

Courtney Handlin,
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Medicare: Medicare Enrolled
Practice Location: 1819 S 22nd Ave, Ste 100, Bozeman, MT 59718
Phone: 406-522-5437    Fax: 406-414-0274
Stephanie Rona Starr, M.D.
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Practice Location: 937 Highland Blvd Ste 5320, Bozeman, MT 59715
Phone: 406-414-4900    
Dr. Kara Lynn Arvin, MD
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Phone: 406-414-5140    
Kathryn D Bertany, MD
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Medicare: Medicare Enrolled
Practice Location: 915 Highland Blvd, Bozeman, MT 59715
Phone: 406-414-5000    
Pepper J Henyon, MD
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Medicare: Medicare Enrolled
Practice Location: 937 Highland Blvd Ste 5320, Bozeman, MT 59715
Phone: 406-414-4900    
Lauren Bickle, MD
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Medicare: Medicare Enrolled
Practice Location: 280 W Kagy Blvd Ste G, Bozeman, MT 59715
Phone: 406-587-5870    Fax: 406-522-1536

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.