MARIA MARCHENKO M.D.
NPI 1821248451
Pediatrics in Sidney, MT
About Maria Marchenko M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIA MARCHENKO M.D. (NPI 1821248451) is an individual pediatrics provider in Sidney, Montana, licensed in Alabama (30913) and active in the NPI registry since September 2008. She is enrolled in Medicare PECOS and is a graduate of Other (1992).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Maria Marchenko M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59270 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Maria Marchenko's NPI number?
The NPI number for Maria Marchenko is 1821248451. It was assigned to this individual provider in the NPPES registry on September 18, 2008.
Where is Maria Marchenko located?
Maria Marchenko practices at 216 14th Ave SW, Sidney, MT 59270. The listed phone number is (406) 488-2100.
What is Maria Marchenko's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Maria Marchenko enrolled in Medicare?
Yes. Maria Marchenko is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Maria Marchenko accept?
Health plans from Blue Cross Blue Shield of North Dakota, Blue Cross and Blue Shield of NC and Medica list Maria Marchenko as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Maria Marchenko was last updated on October 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Maria Marchenko, M.D. · NPI 1821248451
Pediatrics physician in Sidney, Montana. Individual provider, active in the CMS NPPES registry since September 18, 2008.
## Identity
- **NPI:** 1821248451 (Entity type: Individual)
- **Enumerated:** September 18, 2008
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 30913 (Alabama)
- **Sole proprietor:** No
## Practice location
- **Address:** 216 14TH AVE SW, Sidney, MT 59270-3519
- **Phone:** (406) 488-2100
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** October 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1821248451) · Data from the CMS NPPES public registry.