NPPES file of Aug 9, 2026

Mackenzie Lurene Mashburn Grillo, NP

Acute Care Nurse Practitioner · Douglasville, GA

Mackenzie Lurene Mashburn Grillo, NP is an acute care nurse practitioner with a practice address in Douglasville, Georgia, and NPI 1891205373, issued on Oct 10, 2017. Check the license (Georgia RN191815, as entered in NPPES) with the Georgia 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891205373
Name
Mackenzie Lurene Mashburn Grillo
Credential
NP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
RN191815 GA
Self-reported in NPPES; status is on the state search
Practice location
8954 Hospital Dr, Douglasville, GA 30134
Phone
(678) 640-5023
Enumerated
Oct 10, 2017
Record last updated
Oct 10, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180125000839); 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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Also registered at 8954 Hospital Dr

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

  1. Christen Allred, M.D, MPHAnesthesiology Physician1215463641
  2. Marc AmayaEmergency Medicine Physician1306959838
  3. Ann Arnold, PHDPsychologist1306938857
  4. Meraj Asif, MDHospitalist Physician1306073028
  5. Lauren Breidenbach, DPTPhysical Therapist1043139314
  6. Allan BrooksStudent in an Organized Health Care Education/Training Program1689496531

Verify Mackenzie Lurene Mashburn Grillo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Georgia board licenses this profession
    Search for license RN191815
    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 Georgia license search

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92% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024

46 Medicare Part D claims for 14 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D.

  1. Mackenzie Grillo46
  2. Specialty average594

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.

The MIPS final score for 2023 (Medicare payment program): 92.9 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score80.4
  2. Costnot scored (reweighted)
  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; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $287.92

11 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. 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. Mackenzie Grillo$287.92
  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. Wellstar Medical Group LLCMarietta, GA

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

Mackenzie Lurene Mashburn Grillo among 963 acute care nurse practitioner records in Georgia

Mackenzie Lurene Mashburn Grillo, NP is one of 963 acute care nurse practitioner records with a practice address in Georgia. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 29% of them.

  • NPI issued2017 · 29% of these records are older, 65% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2017 · median 2019 among the 717 with a school on file
  • Record last updated2017 · 33% 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 Georgia 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 Georgia

There are 963 acute care nurse practitioner records in Georgia.

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

  1. Kathryn Norton, DNP, AGACNP, ACNSDouglasville, GA 301341881990778
  2. Susan Smith, AGACNP-BCDouglasville, GA 301341326793720
  3. Lakietta Culkin-Taylor, NPDouglasville, GA 301351720522030
  4. Natalie Pham, AGACNP-BCDouglasville, GA 301351063147650
  5. Diana SimeonDouglasville, GA 301351255265468
  6. Sarah BuscarinoDallas, GA 301321801432307
  7. Kimberly Perkins, NPHiram, GA 301411851976385
  8. Kristin Benefield, APRNJasper, GA 301431437692381

Common questions

What is Mackenzie Lurene Mashburn Grillo, NP's NPI number?

Mackenzie Lurene Mashburn Grillo, NP's National Provider Identifier (NPI) is 1891205373, issued on Oct 10, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Mackenzie Lurene Mashburn Grillo, NP located?

The NPPES record lists a practice address at 8954 Hospital Dr, Douglasville, GA, 30134. Phone: (678) 640-5023. Providers update this record themselves, so call before visiting.

How can I verify Mackenzie Lurene Mashburn Grillo, NP's license?

NPPES lists Georgia license number RN191815, as entered by the provider. Search the Georgia board that licenses this profession; the NPPES record confirms identity only.

How much does Mackenzie Lurene Mashburn Grillo, NP prescribe under Medicare Part D?

In 2024, Mackenzie Lurene Mashburn Grillo, NP had 46 Medicare Part D claims for 14 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions only.

What is Mackenzie Lurene Mashburn Grillo, NP's MIPS final score?

The 2023 MIPS final score is 92.9 of 100. 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.