NPPES file of Aug 9, 2026

Maria Marchenko, M.D.

Pediatrics Physician · Sidney, MT

Maria Marchenko, M.D. is a pediatrics physician with a practice address in Sidney, Montana, and NPI 1821248451, issued on Sep 18, 2008. Check the license (Montana 162004, as entered in NPPES) on the Montana Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821248451
Name
Maria Marchenko
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
162004 MT
30913 AL
046900 CT
Self-reported in NPPES; status is on the state search
Practice location
216 14TH Ave SW, Sidney, MT 59270
Phone
(406) 488-2100
Enumerated
Sep 18, 2008
Record last updated
Oct 10, 2025
Medicare enrollment
Enrolled (PECOS I20251204000481); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest pediatrics physician records → All 153 in Montana → Look up another NPI →

Also registered at 216 14TH Ave SW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Luke Abar, CRNACertified Registered Nurse Anesthetist1992173389
  2. Jennifer Adams, MDDiagnostic Radiology Physician1770540254
  3. Karen Arnold Truax, LCSWClinical Social Worker1710377684
  4. Lynn Beyerle, PHARM.D.Pharmacist1295721934
  5. Amanda Brown, LCSWClinical Psychologist1235858846
  6. David Brown, CRNACertified Registered Nurse Anesthetist1346272184

Verify Maria Marchenko in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMontana Board of Medical Examiners
    Search for license 162004    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Montana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Maria Marchenko among 153 pediatrics physician records in Montana

Maria Marchenko, M.D. is one of 153 pediatrics physician records with a practice address in Montana. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 54% of them.

  • NPI issued2008 · 54% of these records are older, 41% newer
  • In a Medicare fileNo · 25% of these records are
  • In the CMS Doctors and Clinicians fileYes · 9% of these records are
  • Graduated1992 · median 2004 among the 14 with a school on file
  • Record last updated2025 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 pediatrics physician records list a practice address in Sidney

They are 3 of the 119 NPPES records with a practice address in Sidney, and 153 pediatrics physician records in Montana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 153 in Montana → Every provider in Sidney → Pediatrics Physician nationwide →

The 8 pediatrics physician records with the nearest ZIP codes

  1. George Scordalakes, MDSidney, MT 592701275512378
  2. Susan Swayne, MDSidney, MT 592701184618928
  3. Jonathan GilbertPoplar, MT 592551033140686
  4. Steven Griffin, DOMiles City, MT 593011568967677
  5. Patricia Pezzarossi, M.D.Miles City, MT 593011568449411
  6. Lourdes Reynolds, MDMiles City, MT 593011346348257
  7. Patrick Williams, MDMiles City, MT 593011962585844
  8. James Young, MDMiles City, MT 593011811009699

Common questions

What is Maria Marchenko, M.D.'s NPI number?

Maria Marchenko, M.D.'s National Provider Identifier (NPI) is 1821248451, issued on Sep 18, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Maria Marchenko, M.D. located?

The NPPES record lists a practice address at 216 14TH Ave SW, Sidney, MT, 59270. Phone: (406) 488-2100. Providers update this record themselves, so call before visiting.

How can I verify Maria Marchenko, M.D.'s license?

NPPES lists Montana license number 162004, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.