NPPES file of Aug 9, 2026

Cortney Lynn Marrone

Family Nurse Practitioner · Royal Oak, MI

Cortney Lynn Marrone is a family nurse practitioner with a practice address in Royal Oak, Michigan, and NPI 1467077735, issued on Jun 12, 2020. Check the license (Michigan 4704296538, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1467077735
Name
Cortney Lynn Marrone
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
4704296538 MI
Self-reported in NPPES; status is on the state search
Practice location
3601 W 13 Mile RD, Royal Oak, MI 48073
Phone
(248) 898-4021
Enumerated
Jun 12, 2020
Record last updated
Jun 14, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3601 W 13 Mile RD

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

  1. Mary Ann Abbass, C.N.M.Advanced Practice Midwife1003245622
  2. Mohammad Abdulla, DODiagnostic Radiology Physician1093338188
  3. Rasheed Abdullah, MDDiagnostic Radiology Physician1023851847
  4. Darian Aboubakare, MDSleep Medicine (Internal Medicine) Physician1558941674
  5. Farah Aboufakhr, MDAnesthesiology Physician1093409260
  6. Mohamad Aboumourad, DOInternal Medicine Physician1669225637

Verify Cortney Lynn Marrone 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 4704296538
    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.

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The practice group's MIPS final score for 2023 (Medicare payment program): 84.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.7
  2. Costout of 100 · 30%68.4
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Cortney Lynn Marrone among 5,356 family nurse practitioner records in Michigan

Cortney Lynn Marrone is one of 5,356 family nurse practitioner records with a practice address in Michigan. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 55% of them.

  • NPI issued2020 · 55% of these records are older, 38% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2022 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

70 family nurse practitioner records list a practice address in Royal Oak

They are 70 of the 3,887 NPPES records with a practice address in Royal Oak, and 5,356 family nurse practitioner records in Michigan.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Stacey Cantor, FNP-BCRoyal Oak, MI 480731962837518
  2. Dayna ClineRoyal Oak, MI 480731952857195
  3. Courtney Cook, MSN, FNP-CRoyal Oak, MI 480731346699972
  4. Allison FilaryRoyal Oak, MI 480731639534886
  5. Pamela Gray, N.P.Royal Oak, MI 480731104802990
  6. Lorie Hall, RN NPRoyal Oak, MI 480731588655039
  7. Deana Hays, RN MSN FNP-BCRoyal Oak, MI 480731811187545
  8. Kelly Hess, FNP-BC, NP-CRoyal Oak, MI 480731619228061

Common questions

What is Cortney Lynn Marrone's NPI number?

Cortney Lynn Marrone's National Provider Identifier (NPI) is 1467077735, issued on Jun 12, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Cortney Lynn Marrone located?

The NPPES record lists a practice address at 3601 W 13 Mile RD, Royal Oak, MI, 48073. Phone: (248) 898-4021. Providers update this record themselves, so call before visiting.

How can I verify Cortney Lynn Marrone's license?

NPPES lists Michigan license number 4704296538, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

What is Cortney Lynn Marrone's MIPS final score?

The 2023 MIPS final score is 84.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.