NPPES file of Aug 9, 2026

Stephen Mark Melnychuk, D.O.

Emergency Medical Services (Emergency Medicine) Physician · Tuba City, AZ

Stephen Mark Melnychuk, D.O. is an emergency medical services (emergency medicine) physician with a practice address in Tuba City, Arizona, and NPI 1255598611, issued on May 21, 2008. Check the license (Arizona 05240, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255598611
Name
Stephen Mark Melnychuk
Credential
D.O.
Primary taxonomy
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
License number
05240 AZ
Self-reported in NPPES; status is on the state search
Practice location
167 North Main Street, Tuba City, AZ 86045
Phone
(928) 283-2501
Enumerated
May 21, 2008
Record last updated
Sep 3, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090916000245); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 2006
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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Also registered at 167 North Main Street

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

  1. Monique Gia Abad, RNRegistered Nurse1114330883
  2. Dustin Abaonza, PHARM DPharmacist1063774057
  3. Kristin AbaonzaPharmacist1255643458
  4. Linda Abernathy, MDEmergency Medicine Physician1386687093
  5. Charles Adams, RNRegistered Nurse1821423021
  6. Abebe AdunaRegistered Nurse1417312794

Verify Stephen Mark Melnychuk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 05240
    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 Arizona 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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53% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024

136 Medicare Part D claims for 70 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D.

  1. Stephen Melnychuk136
  2. Specialty average292

Most prescribed

  1. Naproxen23 claims
  2. Ondansetron Hcl20 claims
  3. Albuterol Sulfate Hfa16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Dhhs Ihs Phoenix AreaWhiteriver, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephen Mark Melnychuk among 58 emergency medical services (emergency medicine) physician records in Arizona

Stephen Mark Melnychuk, D.O. is one of 58 emergency medical services (emergency medicine) physician records with a practice address in Arizona. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 64% of them.

  • NPI issued2008 · 64% of these records are older, 31% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2006 · median 2003 among the 25 with a school on file
  • Record last updated2009 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medical Services (Emergency Medicine) Physician providers in Arizona

There are 58 emergency medical services (emergency medicine) physician records in Arizona.

The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes

  1. Michele Grizzel, BSNKayenta, AZ 860331467301192
  2. Cory Gingold, PAFlagstaff, AZ 860011679512198
  3. Thomas Vetto, M.D.Whiteriver, AZ 859411952320855
  4. Martin Dekort, MDPrescott, AZ 863011154370732
  5. Matthew Frankel, MDPrescott, AZ 863011518922830
  6. Patrick Gallus, DOPrescott, AZ 863011902861479
  7. Andrew Garff, MDPrescott, AZ 863011487604559
  8. Robert Kec, MDPrescott, AZ 863011891750113

Common questions

What is Stephen Mark Melnychuk, D.O.'s NPI number?

Stephen Mark Melnychuk, D.O.'s National Provider Identifier (NPI) is 1255598611, issued on May 21, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Mark Melnychuk, D.O. located?

The NPPES record lists a practice address at 167 North Main Street, Tuba City, AZ, 86045. Phone: (928) 283-2501. Providers update this record themselves, so call before visiting.

How can I verify Stephen Mark Melnychuk, D.O.'s license?

NPPES lists Arizona license number 05240, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen Mark Melnychuk, D.O. prescribe under Medicare Part D?

In 2024, Stephen Mark Melnychuk, D.O. had 136 Medicare Part D claims for 70 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. Part D covers Medicare prescriptions only.

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

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.