NPPES file of Aug 9, 2026

James Robert Mlejnek, M.D.

Emergency Medicine Physician · Saginaw, MI

James Robert Mlejnek, M.D. is an emergency medicine physician with a practice address in Saginaw, Michigan, and NPI 1548423155, issued on Jul 3, 2008. Check the license (Michigan 5315035964, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1548423155
Name
James Robert Mlejnek
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
5315035964 MI
Self-reported in NPPES; status is on the state search
Practice location
900 Cooper Ave, Saginaw, MI 48602
Phone
(989) 583-6166
Enumerated
Jul 3, 2008
Record last updated
Jun 6, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110328000630); 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 emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →

Also registered at 900 Cooper Ave

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

  1. Christopher Ader, MSNFamily Nurse Practitioner1508141235
  2. Bashar Al Jayyousi, MDInterventional Cardiology Physician1225292568
  3. Parthiv Amin, MDCardiovascular Disease Physician1164650834
  4. Jean Barker, PA-CPhysician Assistant1053957548
  5. Justin Bielby, RNCertified Registered Nurse Anesthetist1649884958
  6. Kaitlyn Bishop, D.O.Emergency Medicine Physician1346685237

Verify James Robert Mlejnek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 5315035964    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 Michigan license search

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32% more Medicare Part D claims than the average emergency medicine physician in 2024

298 Medicare Part D claims for 183 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 53 claims were for opioids.

  1. James Mlejnek298
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen49 claims
  2. Ondansetron Odt40 claims
  3. Naproxen36 claims
  4. Cephalexin27 claims
  5. Prednisone22 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.

2 hospital affiliations

  1. Mymichigan Medical Center MidlandMidland, MI · Acute Care Hospitals4 of 5 stars
  2. Mymichigan Medical Center ClareClare, MI · Acute Care Hospitals2 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

James Robert Mlejnek among 3,083 emergency medicine physician records in Michigan

James Robert Mlejnek, M.D. is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% 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 33% of them.

  • NPI issued2008 · 33% of these records are older, 62% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2008 · median 2013 among the 1,931 with a school on file
  • Record last updated2011 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

182 emergency medicine physician records list a practice address in Saginaw

They are 182 of the 6,008 NPPES records with a practice address in Saginaw, and 3,083 emergency medicine physician records in Michigan.

All 3,083 in Michigan → Every provider in Saginaw → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Mary Arvanitis, DOSaginaw, MI 486021295722841
  2. Andrew Bazakis, M.D.Saginaw, MI 486021114914603
  3. Kevin Carnahan, DOSaginaw, MI 486021124093174
  4. Kathleen Cowling, DOSaginaw, MI 486021790772283
  5. Matthew Deibel, MDSaginaw, MI 486021427019652
  6. Frederick Dunham, MDSaginaw, MI 486021598799082
  7. Allison Gormley, DOSaginaw, MI 486021912955014
  8. Kirsten Guenther, M.D.Saginaw, MI 486021861506156

Common questions

What is James Robert Mlejnek, M.D.'s NPI number?

James Robert Mlejnek, M.D.'s National Provider Identifier (NPI) is 1548423155, issued on Jul 3, 2008. An NPI identifies a provider in billing; it is not a license.

Where is James Robert Mlejnek, M.D. located?

The NPPES record lists a practice address at 900 Cooper Ave, Saginaw, MI, 48602. Phone: (989) 583-6166. Providers update this record themselves, so call before visiting.

How can I verify James Robert Mlejnek, M.D.'s license?

NPPES lists Michigan license number 5315035964, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James Robert Mlejnek, M.D. prescribe under Medicare Part D?

In 2024, James Robert Mlejnek, M.D. had 298 Medicare Part D claims for 183 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.

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.