DR. STEPHEN MARK MELNYCHUK D.O.
NPI 1255598611
Emergency Medicine - Emergency Medical Services in Tuba City, AZ
About Dr. Stephen Mark Melnychuk D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN MARK MELNYCHUK D.O. (NPI 1255598611) is an individual emergency medical services provider in Tuba City, Arizona, licensed in Arizona (05240) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS and is a graduate of Philadelphia College Of Osteopathic Medicine (2006).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Stephen Mark Melnychuk D.o. 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.
Medicare Billing Reassignments
4Medicare enrollment records show Stephen Melnychuk reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tuba City, AZ 86045
- Reassigned Medicare billing, Texas enrollment
- 540 clinicians in this Medicare group
Polacca, AZ 86042
- Reassigned Medicare billing, Texas enrollment
- 199 clinicians in this Medicare group
Cibecue, AZ 85911
- Reassigned Medicare billing, Texas enrollment
- 214 clinicians in this Medicare group
Peridot, AZ 85542
- Reassigned Medicare billing, Texas enrollment
- 438 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 86045 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.
TUBA CITY, AZ 86045
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 Stephen Melnychuk's NPI number?
The NPI number for Stephen Melnychuk is 1255598611. It was assigned to this individual provider in the NPPES registry on May 21, 2008.
Where is Stephen Melnychuk located?
Stephen Melnychuk practices at 167 North Main Street, Tuba City, AZ 86045. The listed phone number is (928) 283-2501.
What is Stephen Melnychuk's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Stephen Melnychuk enrolled in Medicare?
Yes. Stephen Melnychuk 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.
Which organizations bill Medicare for Stephen Melnychuk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Melnychuk reassigns Medicare benefits to 4 organizations: Tuba City Regional Health Care Corporation (Tuba City, AZ), Dhhs Ihs Phoenix Area (Polacca, AZ), Dhhs Ihs Phoenix Area (Cibecue, AZ) and San Carlos Apache Healthcare Corporation (Peridot, AZ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephen Melnychuk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Melnychuk accept?
Health plans from Blue Cross Blue Shield of Arizona list Stephen Melnychuk 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 Stephen Melnychuk was last updated on September 3, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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.