NPPES file of Aug 9, 2026

Mark Stefan James Simkow, AGACNP-BC

Acute Care Nurse Practitioner · Dearborn, MI

Mark Stefan James Simkow, AGACNP-BC is an acute care nurse practitioner with a practice address in Dearborn, Michigan, and NPI 1508546375, issued on Jul 18, 2023. Check the license (Michigan 4704285727, as entered in NPPES) with the Michigan board that licenses this profession; 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
1508546375
Name
Mark Stefan James Simkow
Credential
AGACNP-BC
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
4704285727 MI
Self-reported in NPPES; status is on the state search
Practice location
18101 Oakwood Blvd, Dearborn, MI 48124
Phone
(313) 593-7000
Enumerated
Jul 18, 2023
Record last updated
Sep 20, 2023
Medicare enrollment
Enrolled (PECOS I20231006001639); 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.
Download card Updates feed

Also registered at 18101 Oakwood Blvd

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

  1. Omar Abbas, MDDiagnostic Radiology Physician1255225751
  2. Ahmed AbdelrahimInternal Medicine Physician1376160960
  3. Sarah Abdelsamad, MDGeriatric Medicine (Internal Medicine) Physician1518451236
  4. Ahmed AbdulbagiInternal Medicine Physician1154005817
  5. Mohammad Abed Alhaleem, M.D.Student in an Organized Health Care Education/Training Program1275372963
  6. Sindhoora Adyanthaya, MDInternal Medicine Physician1053974758

Verify Mark Stefan James Simkow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 4704285727
    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
Find the Michigan 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

94% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024

37 Medicare Part D claims for 21 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D.

  1. Mark Simkow37
  2. Specialty average594

Most prescribed

  1. Mupirocin13 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.

Industry payments in 2024: $36.99

1 payment: food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 10,984 providers of this specialty with any payment received $647.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Simkow$36.99
  2. Specialty average$647.94

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Beaumont Medical Group- Specialty ServicesDearborn, MI

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

Mark Stefan James Simkow among 865 acute care nurse practitioner records in Michigan

Mark Stefan James Simkow, AGACNP-BC is one of 865 acute care nurse practitioner records with a practice address in Michigan. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 82% of them.

  • NPI issued2023 · 82% of these records are older, 12% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2023 · median 2019 among the 597 with a school on file
  • Record last updated2023 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in Michigan

There are 865 acute care nurse practitioner records in Michigan.

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Lori Chester, ACNP-BCDearborn, MI 481241699006585
  2. Lauren CollavinoDearborn, MI 481241417410739
  3. Erica Ellul, RN, MSN, AGACNP-BCDearborn, MI 481241720502594
  4. Annette Frendo, ACNPDearborn, MI 481241033457650
  5. Tammy Kujala, NPDearborn, MI 481241073861415
  6. Jose Ramil Lasala, ACNP-BCDearborn, MI 481241710284872
  7. Melissa Markoc, NPDearborn, MI 481241316394893
  8. Jaclyn Phillion, ACAGNPDearborn, MI 481241578044962

Common questions

What is Mark Stefan James Simkow, AGACNP-BC's NPI number?

Mark Stefan James Simkow, AGACNP-BC's National Provider Identifier (NPI) is 1508546375, issued on Jul 18, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Mark Stefan James Simkow, AGACNP-BC located?

The NPPES record lists a practice address at 18101 Oakwood Blvd, Dearborn, MI, 48124. Phone: (313) 593-7000. Providers update this record themselves, so call before visiting.

How can I verify Mark Stefan James Simkow, AGACNP-BC's license?

NPPES lists Michigan license number 4704285727, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Mark Stefan James Simkow, AGACNP-BC prescribe under Medicare Part D?

In 2024, Mark Stefan James Simkow, AGACNP-BC had 37 Medicare Part D claims for 21 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.