Maria Marchenko, MD - Medicare Pediatric Medicine in Sidney, MT

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Maria Marchenko, MD is a medicare enrolled "Pediatrics" physician in Sidney, Montana. She graduated from medical school in 1992 and has 34 years of diverse experience with area of expertise as Pediatric Medicine. Her current practice location is 216 14th Ave Sw, Sidney, Montana. You can reach out to her office (for appointments etc.) via phone at (406) 488-2100.

Maria Marchenko is licensed to practice in Alabama (license number 30913) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1821248451.

Contact Information

Maria Marchenko, MD
216 14th Ave Sw,
Sidney, MT 59270-3519
(406) 488-2100
Not Available

Map and Direction




Physician's Profile

Full NameMaria Marchenko
GenderFemale
SpecialityPediatric Medicine
Experience34 Years
Location216 14th Ave Sw, Sidney, Montana
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Maria Marchenko graduated from medical school in 1992
  NPI Data:
  • NPI Number: 1821248451
  • Provider Enumeration Date: 09/18/2008
  • Last Update Date: 10/10/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 1456539980
  • Enrollment ID: I20251204000481

Medical Identifiers

Medical identifiers for Maria Marchenko such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821248451NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics 046900 (Connecticut)Secondary
208000000XPediatrics 162004 (Montana)Secondary
208000000XPediatrics 30913 (Alabama)Primary

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. Maria Marchenko 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
Maria Marchenko, MD
216 14th Ave Sw,
Sidney, MT 59270-3519

Ph: (406) 488-2100		Maria Marchenko, MD
216 14th Ave Sw,
Sidney, MT 59270-3519

Ph: (406) 488-2100

Reviews and Comments


Pediatrics Doctors in Sidney, MT

Dr. Susan Marie Swayne, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 216 14th Ave Sw, Sidney, MT 59270
Phone: 406-488-2100    
George E Scordalakes, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 214 14th Ave Sw, Sidney, MT 59270
Phone: 757-874-8400    

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).

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